/* ============================================
   BotCerdas - SuperAI Clone
   All-in-One AI Assistant Styles
   ============================================ */

/* ── CSS Variables (Dark Theme Default) ── */
:root,
[data-theme="dark"] {
    /* Background */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a27;
    --bg-card: #16161f;
    --bg-card-hover: #1e1e2a;
    --bg-input: #1a1a27;
    --bg-sidebar: #0e0e15;
    --bg-overlay: rgba(0, 0, 0, 0.6);
    --bg-modal: #16161f;
    --bg-tooltip: #2a2a3a;
    
    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6b6b80;
    --text-muted: #4a4a5e;
    --text-inverse: #0a0a0f;
    
    /* Accent Colors */
    --accent-primary: #3b82f6;
    --accent-primary-hover: #60a5fa;
    --accent-primary-bg: rgba(59, 130, 246, 0.12);
    --accent-secondary: #2563eb;
    --accent-success: #22c55e;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --accent-info: #3b82f6;
    
    /* Border */
    --border-color: #2a2a3a;
    --border-light: #1e1e2e;
    --border-focus: #3b82f6;
    
    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
    
    /* Scrollbar */
    --scrollbar-bg: transparent;
    --scrollbar-thumb: #2a2a3a;
    --scrollbar-thumb-hover: #3a3a4a;
    
    /* Specific */
    --sidebar-width: 280px;
    --header-height: 56px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* Model Colors */
    --color-chatgpt: #10a37f;
    --color-gemini: #4285f4;
    --color-deepseek: #1d4ed8;
    --color-llama: #f97316;
    --color-claude: #d97706;
    --color-image: #ec4899;
}

/* ── Light Theme ── */
[data-theme="light"] {
    --bg-primary: #f8f9fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f1f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f5f5fa;
    --bg-input: #f0f1f5;
    --bg-sidebar: #ffffff;
    --bg-overlay: rgba(0, 0, 0, 0.3);
    --bg-modal: #ffffff;
    --bg-tooltip: #1a1a27;
    
    --text-primary: #1a1a2e;
    --text-secondary: #5a5a70;
    --text-tertiary: #8a8a9e;
    --text-muted: #b0b0c0;
    --text-inverse: #ffffff;
    
    --border-color: #e0e0ea;
    --border-light: #eeeef4;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.1);
    
    --scrollbar-thumb: #d0d0da;
    --scrollbar-thumb-hover: #b0b0ba;
}

/* ── Reset & Base ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
    outline: none;
    color: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    outline: none;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* ── Layout ── */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: var(--transition-slow);
}

.page-container {
    flex: 1;
    padding: 24px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}

/* ── Sidebar ── */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 16px 8px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-sm);
    color: white;
    font-size: 16px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-close {
    display: none;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: var(--transition);
}

.sidebar-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-new {
    padding: 8px 12px;
}

.btn-new-chat {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-new-chat:hover {
    background: var(--accent-primary-bg);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.sidebar-nav {
    padding: 4px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 450;
    transition: var(--transition);
    text-decoration: none;
}

.sidebar-nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.sidebar-nav-item.active {
    background: var(--accent-primary-bg);
    color: var(--accent-primary);
}

.sidebar-nav-item i {
    width: 18px;
    text-align: center;
    font-size: 14px;
}

.sidebar-section {
    padding: 4px 8px;
}

.sidebar-section-scroll {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.sidebar-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px 4px;
}

.sidebar-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.sidebar-section-btn {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 10px;
    transition: var(--transition);
}

.sidebar-section-btn:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

.sidebar-chat-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.sidebar-chat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    group: true;
}

.sidebar-chat-item:hover {
    background: var(--bg-tertiary);
}

.sidebar-chat-item.active {
    background: var(--accent-primary-bg);
}

.sidebar-chat-item .chat-title {
    flex: 1;
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-chat-item:hover .chat-title,
.sidebar-chat-item.active .chat-title {
    color: var(--text-primary);
}

.sidebar-chat-item .chat-time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}

.sidebar-chat-item .chat-actions {
    display: none;
    gap: 2px;
}

.sidebar-chat-item:hover .chat-actions {
    display: flex;
}

.sidebar-chat-item:hover .chat-time {
    display: none;
}

.chat-action-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 11px;
    transition: var(--transition);
}

.chat-action-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    padding: 8px 12px 12px;
    border-top: 1px solid var(--border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-user:hover {
    background: var(--bg-tertiary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
    overflow: hidden;
    flex-shrink: 0;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    display: block;
    font-size: 11px;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-settings {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: var(--transition);
}

.user-settings:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.sidebar-referral {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.sidebar-referral i {
    color: var(--accent-warning);
}

.sidebar-referral-code {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

.sidebar-referral-code strong {
    color: var(--accent-primary);
}

.copy-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 11px;
    transition: var(--transition);
    margin-left: auto;
}

.copy-btn:hover {
    background: var(--bg-card);
    color: var(--accent-primary);
}

.btn-login-sidebar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 10px;
    background: var(--accent-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.btn-login-sidebar:hover {
    background: var(--accent-primary-hover);
    color: white;
}

/* ── Sidebar Overlay ── */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    z-index: 999;
}

/* ── Mobile Toggle ── */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    padding: 0 16px;
    align-items: center;
    gap: 12px;
    z-index: 998;
}

.mobile-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 18px;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
    border: none;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: var(--radius-md);
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-danger {
    background: var(--accent-danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-gradient {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border: none;
}

.btn-gradient:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
}

/* ── Cards ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-focus);
    box-shadow: var(--shadow-md);
}

.card-flat {
    border: none;
    background: var(--bg-tertiary);
}

/* ── Forms ── */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-bg);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-error {
    font-size: 12px;
    color: var(--accent-danger);
    margin-top: 4px;
}

/* ── Dashboard ── */
.dashboard-welcome {
    text-align: center;
    padding: 60px 20px 40px;
}

.dashboard-welcome h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.dashboard-welcome p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* Model Grid */
.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    padding: 0 20px;
    max-width: 700px;
    margin: 32px auto;
}

.model-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.model-card:hover {
    border-color: var(--border-focus);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.model-card.active {
    border-color: var(--accent-primary);
    background: var(--accent-primary-bg);
}

.model-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 20px;
    transition: var(--transition);
}

.model-card .model-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.model-card.active .model-name {
    color: var(--text-primary);
}

/* Feature Cards (like Docs & Slides, Tanya Soal etc.) */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    padding: 0 20px;
    max-width: 700px;
    margin: 20px auto;
}

.feature-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-secondary);
}

.feature-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-primary);
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 22px;
}

.feature-card .feature-label {
    font-size: 13px;
    font-weight: 500;
}

/* ── Chat Area ── */
.chat-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-height, 0px));
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.chat-message {
    display: flex;
    gap: 12px;
    max-width: 100%;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 2px;
}

.message-avatar.user-msg {
    background: var(--accent-primary);
    color: white;
}

.message-avatar.ai-msg {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.message-sender {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.message-model {
    font-size: 11px;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
}

.message-body {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-primary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.message-body p {
    margin-bottom: 12px;
}

.message-body p:last-child {
    margin-bottom: 0;
}

.message-body pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin: 12px 0;
    overflow-x: auto;
    position: relative;
}

.message-body code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
}

.message-body :not(pre) > code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
}

.message-body ul, .message-body ol {
    padding-left: 20px;
    margin: 8px 0;
}

.message-body li {
    margin-bottom: 4px;
}

.message-body blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: 12px;
    color: var(--text-secondary);
    margin: 12px 0;
}

.message-body img {
    max-width: 100%;
    border-radius: var(--radius-sm);
    margin: 8px 0;
}

.message-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}

.message-body th, .message-body td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.message-body th {
    background: var(--bg-tertiary);
    font-weight: 600;
}

.message-actions {
    display: flex;
    gap: 4px;
    margin-top: 8px;
    opacity: 0;
    transition: var(--transition);
}

.chat-message:hover .message-actions {
    opacity: 1;
}

.message-action-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 12px;
    transition: var(--transition);
}

.message-action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 0;
    min-height: 24px;
}

.typing-indicator > span:not(.status-text) {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
    flex-shrink: 0;
}

.typing-indicator > .status-text {
    width: auto;
    height: auto;
    background: none;
    border-radius: 0;
    animation: none;
}

.typing-indicator span:nth-child(2):not(.status-text) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3):not(.status-text) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Chat Input Area */
.chat-input-area {
    padding: 12px 20px 24px;
    background: var(--bg-primary);
    position: relative;
    overflow: visible;
}

.chat-input-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: visible;
    transition: var(--transition);
    position: relative;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-bg);
}

.chat-input-top {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px 16px 8px;
}

.chat-input-top textarea {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    min-height: 24px;
    max-height: 200px;
    padding: 0;
}

.chat-input-top textarea::placeholder {
    color: var(--text-muted);
}

.chat-input-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px 10px;
    gap: 8px;
    position: relative;
    overflow: visible;
}

.chat-input-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
}

.input-action-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 14px;
    transition: var(--transition);
}

.input-action-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.model-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.model-selector:hover {
    border-color: var(--border-color);
    color: var(--text-primary);
}

.model-selector .model-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.deep-research-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.deep-research-btn:hover {
    background: var(--accent-primary-bg);
    color: var(--accent-primary);
}

.send-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--accent-primary);
    color: white;
    font-size: 14px;
    transition: var(--transition);
    flex-shrink: 0;
}

.send-btn:hover {
    background: var(--accent-primary-hover);
    transform: scale(1.05);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Model Dropdown */
.model-dropdown {
    position: fixed;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    min-width: 240px;
    z-index: 10000;
    display: none;
}

.model-dropdown.show {
    display: block;
    animation: fadeInUp 0.2s ease;
}

.model-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.model-dropdown-item:hover {
    background: var(--bg-tertiary);
}

.model-dropdown-item.active {
    background: var(--accent-primary-bg);
}

.model-dropdown-item .mdi-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.model-dropdown-item .mdi-info {
    flex: 1;
}

.model-dropdown-item .mdi-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.model-dropdown-item .mdi-desc {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* ── Token Usage Bar ── */
.token-bar {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 20px 0;
}

.token-bar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.token-bar-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.token-bar-value {
    font-size: 13px;
    color: var(--text-tertiary);
}

.token-progress {
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
}

.token-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.token-progress-fill.warning {
    background: linear-gradient(90deg, var(--accent-warning), #f97316);
}

.token-progress-fill.danger {
    background: linear-gradient(90deg, var(--accent-danger), #dc2626);
}

/* ── Pricing ── */
.pricing-container {
    padding: 40px 20px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 40px;
}

.pricing-header h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
}

.pricing-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    padding: 4px 16px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.pricing-plan-name {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-plan-name .pro-badge {
    padding: 2px 8px;
    background: var(--accent-primary);
    color: white;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.pricing-price {
    margin: 16px 0;
}

.pricing-amount {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
}

.pricing-period {
    font-size: 14px;
    color: var(--text-tertiary);
}

.pricing-old-price {
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-right: 8px;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 16px 0 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.pricing-features li i {
    color: var(--accent-success);
    margin-top: 3px;
    font-size: 12px;
}

/* ── Auth Pages ── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.auth-header {
    text-align: center;
    margin-bottom: 28px;
}

.auth-logo {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-md);
    color: white;
    font-size: 20px;
    margin: 0 auto 16px;
}

.auth-header h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.auth-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 13px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.social-login-btns {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 11px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-social:hover {
    background: var(--bg-card-hover);
    border-color: var(--text-muted);
}

.btn-social img {
    width: 18px;
    height: 18px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-tertiary);
}

.auth-footer a {
    color: var(--accent-primary);
    font-weight: 500;
}

/* ── Settings ── */
.settings-layout {
    display: flex;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.settings-sidebar {
    width: 220px;
    flex-shrink: 0;
}

.settings-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.settings-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.settings-nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.settings-nav-item.active {
    background: var(--accent-primary-bg);
    color: var(--accent-primary);
}

.settings-nav-item i {
    width: 18px;
    text-align: center;
}

.settings-nav-item.danger {
    color: var(--accent-danger);
}

.settings-content {
    flex: 1;
    min-width: 0;
}

.settings-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 16px;
}

.settings-section h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.settings-section h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

/* ── Credits Page ── */
.credits-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.credits-usage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.credits-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 20px;
}

.credits-info-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.credits-info-col ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.credits-info-col li {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-tertiary);
}

.credits-info-col li i {
    width: 14px;
    text-align: center;
    font-size: 11px;
}

.unlimited-badge {
    display: inline-flex;
    padding: 2px 8px;
    background: var(--accent-success);
    color: white;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.credits-topup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.topup-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.topup-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.topup-price {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.topup-credits {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* ── Tables ── */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.data-table td {
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.data-table tr:hover td {
    background: var(--bg-card-hover);
}

/* ── Modal ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 60px 20px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    overflow-y: auto;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 560px;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: var(--transition);
}

.modal-overlay.show .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

/* ── Admin ── */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.stat-card-label {
    font-size: 13px;
    color: var(--text-tertiary);
}

.stat-card-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 16px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card-change {
    font-size: 12px;
    color: var(--accent-success);
    margin-top: 4px;
}

/* ── Tanya Soal Page ── */
.tanya-soal-header {
    text-align: center;
    padding: 60px 20px 30px;
}

.tanya-soal-header .feature-icon-lg {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    font-size: 28px;
    margin: 0 auto 16px;
    color: var(--accent-primary);
}

.tanya-soal-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.tanya-soal-header p {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

.level-selector {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.level-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    min-width: 70px;
}

.level-btn:hover {
    border-color: var(--accent-primary);
}

.level-btn.active {
    border-color: var(--accent-primary);
    background: var(--accent-primary-bg);
}

.level-btn i {
    font-size: 18px;
    color: var(--text-secondary);
}

.level-btn.active i {
    color: var(--accent-primary);
}

.level-btn span {
    font-size: 11px;
    color: var(--text-tertiary);
}

.level-btn.active span {
    color: var(--accent-primary);
}

.upload-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    max-width: 500px;
    margin: 20px auto;
}

.upload-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px;
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.upload-card:hover {
    border-color: var(--accent-primary);
    background: var(--accent-primary-bg);
}

.upload-card i {
    font-size: 24px;
    color: var(--accent-primary);
}

.upload-card span {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ── Asisten Skripsi ── */
.skripsi-header {
    text-align: center;
    padding: 60px 20px 30px;
}

.skripsi-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 24px 0;
}

.skripsi-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.skripsi-tab:hover {
    border-color: var(--accent-primary);
}

.skripsi-tab.active {
    border-color: var(--accent-primary);
    background: var(--accent-primary-bg);
    color: var(--accent-primary);
}

.skripsi-tab i {
    font-size: 12px;
}

.citation-options {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 16px 0;
}

.citation-btn {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.citation-btn:hover, .citation-btn.active {
    background: var(--accent-primary-bg);
    color: var(--accent-primary);
}

/* ── Toast Notifications ── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    animation: slideInRight 0.3s ease;
    max-width: 360px;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

.toast-success { border-left: 3px solid var(--accent-success); }
.toast-error { border-left: 3px solid var(--accent-danger); }
.toast-warning { border-left: 3px solid var(--accent-warning); }
.toast-info { border-left: 3px solid var(--accent-info); }

.toast-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--accent-success); }
.toast-error .toast-icon { color: var(--accent-danger); }
.toast-warning .toast-icon { color: var(--accent-warning); }
.toast-info .toast-icon { color: var(--accent-info); }

.toast-close {
    margin-left: auto;
    font-size: 12px;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 4px;
}

/* ── Theme Toggle Button ── */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 18px;
    z-index: 100;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.1);
}

/* ── Loading ── */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5000;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ── Copy Code Button ── */
.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.code-lang {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.copy-code-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-tertiary);
    transition: var(--transition);
}

.copy-code-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ── FUP Info Banner ── */
.fup-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--accent-primary-bg);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-secondary);
    margin: 16px 0;
}

.fup-banner i {
    color: var(--accent-primary);
    font-size: 16px;
}

/* ── Plan Badge ── */
.plan-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.plan-badge.free { background: var(--bg-tertiary); color: var(--text-tertiary); }
.plan-badge.basic { background: rgba(59, 130, 246, 0.15); color: var(--accent-info); }
.plan-badge.pro { background: rgba(37, 99, 235, 0.15); color: var(--accent-secondary); }
.plan-badge.enterprise { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); }

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-tertiary);
}

.empty-state i {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 14px;
}

/* ── Notification Banner ── */
.notification-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(37, 99, 235, 0.1));
    border-bottom: 1px solid var(--border-color);
}

.notification-banner-text {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.notification-banner-text strong {
    color: var(--text-primary);
}

.notification-banner .btn-sm {
    background: var(--accent-primary);
    color: white;
    white-space: nowrap;
}

.notification-banner-close {
    margin-left: 12px;
    font-size: 16px;
    color: var(--text-muted);
    cursor: pointer;
}

/* ── Guest Top Bar ── */
.guest-topbar {
    position: fixed;
    top: 12px;
    right: 20px;
    z-index: 1000;
}

/* ── Landing Page ── */
.landing-hero {
    text-align: center;
    padding: 80px 20px 40px;
    max-width: 800px;
    margin: 0 auto;
}

.landing-hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-hero p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 32px;
}

.landing-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.landing-features {
    padding: 60px 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.landing-features h2 {
    text-align: center;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
}

.landing-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.landing-feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
}

.landing-feature-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.landing-feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 18px;
    margin-bottom: 16px;
}

.landing-feature-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.landing-feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── Responsive ── */

/* Tablet breakpoint */
@media (max-width: 1024px) {
    .landing-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-overlay.show {
        display: block;
    }
    
    .sidebar-close {
        display: flex;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-header {
        display: flex;
    }
    
    .page-container {
        padding: 16px;
        padding-top: calc(var(--header-height) + 16px);
    }
    
    .chat-container {
        height: calc(100vh - var(--header-height));
    }
    
    /* Landing page */
    .landing-hero {
        padding: 40px 16px 24px;
    }
    
    .landing-hero h1 {
        font-size: 28px;
    }
    
    .landing-hero p {
        font-size: 15px;
    }
    
    .landing-features {
        padding: 32px 16px;
    }
    
    .landing-features h2 {
        font-size: 22px;
        margin-bottom: 24px;
    }
    
    .landing-feature-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .landing-feature-card {
        padding: 16px;
    }
    
    .landing-cta {
        flex-direction: column;
        gap: 8px;
    }
    
    .landing-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Pricing */
    .pricing-grid {
        grid-template-columns: 1fr !important;
    }
    
    .pricing-container {
        padding: 20px 16px !important;
    }
    
    .pricing-header h1 {
        font-size: 24px !important;
    }
    
    /* Settings */
    .settings-layout {
        flex-direction: column;
    }
    
    .settings-sidebar {
        width: 100%;
    }
    
    .settings-nav {
        flex-direction: row;
        overflow-x: auto;
        gap: 4px;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
    
    .settings-nav-item {
        white-space: nowrap;
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .settings-nav hr {
        display: none;
    }
    
    /* Model grid */
    .model-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .credits-info-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .upload-grid {
        grid-template-columns: 1fr;
    }
    
    /* Dashboard */
    .dashboard-welcome {
        padding: 30px 16px 20px;
    }
    
    .dashboard-welcome h1 {
        font-size: 22px;
    }
    
    .dashboard-welcome p {
        font-size: 14px;
    }
    
    /* Chat input bottom — wrap items */
    .chat-input-bottom {
        flex-wrap: wrap;
        gap: 6px;
        padding: 6px 10px 8px;
    }
    
    .chat-input-area {
        padding: 8px 12px 16px;
    }
    
    /* Feature toggles on mobile */
    .feature-toggle-btn {
        padding: 5px 10px;
        font-size: 12px;
        gap: 4px;
    }
    
    .feature-toggle-btn span {
        display: none;
    }
    
    .model-selector {
        max-width: 140px;
        font-size: 12px;
        padding: 4px 10px;
    }
    
    .model-selector span:not(.model-dot) {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        max-width: 80px;
    }
    
    /* Notification banner */
    .notification-banner {
        flex-wrap: wrap;
        gap: 8px;
        padding: 10px 16px;
        justify-content: center;
        text-align: center;
        position: relative;
    }
    
    .notification-banner-text {
        flex-wrap: wrap;
        justify-content: center;
        font-size: 12px;
        gap: 6px;
    }
    
    .notification-banner-close {
        position: absolute;
        top: 8px;
        right: 12px;
    }
    
    /* Guest topbar — don't overlap mobile header */
    .guest-topbar {
        top: auto;
        bottom: 16px;
        right: 16px;
        z-index: 1001;
    }
    
    /* Tables — horizontal scroll */
    .data-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    
    .data-table thead,
    .data-table tbody,
    .data-table tr {
        display: table;
        width: 100%;
        table-layout: auto;
    }
    
    /* Token bar */
    .token-bar {
        max-width: 100% !important;
        margin: 0 12px 10px !important;
    }
    
    /* Nav on landing page */
    .landing-nav {
        padding: 12px 16px !important;
    }
    
    /* Theme toggle */
    .theme-toggle {
        bottom: 12px;
        right: 12px;
        width: 38px;
        height: 38px;
        font-size: 16px;
    }
    
    /* Credits topup grid */
    .credits-topup-grid {
        grid-template-columns: 1fr !important;
    }
    
    /* Toast */
    .toast-container {
        left: 12px;
        right: 12px;
    }
    
    .toast {
        max-width: 100%;
    }
    
    /* FUP banner */
    .fup-banner {
        margin: 16px !important;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .model-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .auth-card {
        padding: 20px 16px;
        margin: 0 8px;
    }
    
    .pricing-card {
        padding: 16px;
    }
    
    .skripsi-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .level-selector {
        gap: 4px;
        flex-wrap: wrap;
    }
    
    .level-btn {
        min-width: 56px;
        padding: 8px 12px;
    }
    
    /* Even smaller chat input */
    .chat-input-bottom {
        padding: 4px 8px 6px;
    }
    
    .input-action-btn {
        width: 30px;
        height: 30px;
        font-size: 13px;
    }
    
    .send-btn {
        width: 30px;
        height: 30px;
    }
    
    .model-selector {
        max-width: 110px;
        font-size: 11px;
    }
    
    /* Landing hero */
    .landing-hero h1 {
        font-size: 24px;
    }
    
    .landing-hero p {
        font-size: 14px;
    }
    
    /* Stat cards */
    .admin-stats {
        grid-template-columns: 1fr;
    }
    
    /* Settings sections */
    .settings-content {
        padding: 16px;
    }
}

/* ── Utility Classes ── */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-accent { color: var(--accent-primary) !important; }
.text-success { color: var(--accent-success) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-warning { color: var(--accent-warning) !important; }

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }
.d-block { display: block; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 4px; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }

.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

.p-0 { padding: 0; }
.p-8 { padding: 8px; }
.p-16 { padding: 16px; }
.p-20 { padding: 20px; }
.p-24 { padding: 24px; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ════════════════════════════════════
   Streaming, Thinking, Browsing
   ════════════════════════════════════ */

/* ── Streaming Cursor ── */
.streaming-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--accent-primary);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink-cursor 0.8s steps(2) infinite;
}
@keyframes blink-cursor {
    0%   { opacity: 1; }
    50%  { opacity: 0; }
    100% { opacity: 1; }
}

/* ── Toggle Buttons (Thinking / Browsing) ── */
.feature-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.feature-toggle-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb, 59,130,246), 0.08);
}
.feature-toggle-btn.toggle-active {
    border-color: var(--accent-primary);
    background: var(--accent-primary);
    color: #fff;
}
.feature-toggle-btn.toggle-active:hover {
    opacity: 0.9;
    background: var(--accent-primary);
    color: #fff;
}
.feature-toggle-btn i {
    font-size: 12px;
}

/* ── Thinking Box ── */
.thinking-message .message-content {
    width: 100%;
}
.thinking-box {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 4px;
}
.thinking-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    cursor: pointer;
    user-select: none;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: background 0.2s;
}
.thinking-header:hover {
    background: rgba(var(--accent-primary-rgb, 59,130,246), 0.06);
}
.thinking-icon {
    color: #eab308;
    font-size: 14px;
}
.thinking-spinner {
    margin-left: auto;
    color: var(--accent-primary);
    font-size: 12px;
}
.thinking-chevron {
    font-size: 11px;
    transition: transform 0.3s ease;
    margin-left: 4px;
}
.thinking-chevron.collapsed {
    transform: rotate(180deg);
}
.thinking-content {
    padding: 0 14px 14px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 400px;
    overflow-y: auto;
    transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
}
.thinking-content.collapsed {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0.5;
    overflow: hidden;
}

/* ── Sources Box (Browsing) ── */
.sources-message .message-content {
    width: 100%;
}
.sources-box {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 4px;
}
.sources-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}
.sources-header i {
    color: #3b82f6;
}
.sources-list {
    display: flex;
    flex-direction: column;
}
.source-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 14px;
    text-decoration: none;
    color: var(--text-primary);
    transition: background 0.15s;
    border-bottom: 1px solid var(--border-color);
}
.source-item:last-child {
    border-bottom: none;
}
.source-item:hover {
    background: rgba(var(--accent-primary-rgb, 59,130,246), 0.05);
}
.source-num {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}
.source-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.source-title {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.source-url {
    font-size: 11px;
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Status text in typing indicator ── */
.status-text {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}
.status-text i {
    color: #3b82f6;
}

/* ── Generated Image Container ── */
.generated-image-container {
    position: relative;
    display: inline-block;
    max-width: 512px;
    width: 100%;
    margin-bottom: 16px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: box-shadow 0.3s ease;
}
.generated-image-container:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.generated-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
}
.image-actions-overlay {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.25s ease;
}
.generated-image-container:hover .image-actions-overlay {
    opacity: 1;
}
.image-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    backdrop-filter: blur(4px);
    transition: background 0.2s ease, transform 0.2s ease;
}
.image-action-btn:hover {
    background: rgba(0, 0, 0, 0.75);
    transform: scale(1.1);
    color: #fff;
}
@media (max-width: 768px) {
    .generated-image-container {
        max-width: 100%;
    }
    .image-actions-overlay {
        opacity: 1;
    }
}

/* ── File Upload Preview ── */
.file-preview-area {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-color);
    max-height: 180px;
    overflow-y: auto;
}
.file-preview-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    transition: border-color 0.2s;
}
.file-preview-item:hover {
    border-color: var(--accent-primary);
}
.file-preview-image {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
}
.file-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.file-preview-doc {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    min-width: 180px;
    max-width: 260px;
}
.file-preview-icon {
    font-size: 24px;
    flex-shrink: 0;
}
.file-preview-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}
.file-preview-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.file-preview-image .file-preview-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 4px 6px;
    background: rgba(0,0,0,0.65);
    color: #fff;
    font-size: 10px;
    text-align: center;
}
.file-preview-size {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
}
.file-preview-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(0,0,0,0.6);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    z-index: 2;
}
.file-preview-item:hover .file-preview-remove {
    opacity: 1;
}
.file-preview-remove:hover {
    background: rgba(239,68,68,0.85);
}
.file-preview-doc .file-preview-remove {
    position: relative;
    top: auto;
    right: auto;
    opacity: 1;
    flex-shrink: 0;
}

/* Drag & Drop */
.chat-input-wrapper.drag-over {
    border-color: var(--accent-primary) !important;
    box-shadow: 0 0 0 2px rgba(59, 130, 246,0.25);
}
.chat-input-wrapper.drag-over::after {
    content: 'Drop file di sini';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246,0.08);
    color: var(--accent-primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: inherit;
    z-index: 10;
    pointer-events: none;
}

/* File upload btn active state */
#fileUploadBtn.has-files {
    color: var(--accent-primary);
}