/* static/css/style.css - AradGPT Pro 2.5 Luminous Aurora & Crystal Glass Theme */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&family=Fira+Code:wght@400;500;600&display=swap');

:root {
    color-scheme: dark;
    --bg-base: #0c1222;
    --bg-canvas: #0f172a;
    --sidebar-bg: rgba(15, 23, 42, 0.95);
    --card-bg: rgba(22, 30, 49, 0.75);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-hover-border: rgba(139, 92, 246, 0.5);
    --card-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.45);

    --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 35%, #c084fc 70%, #f43f5e 100%);
    --aurora-gradient: linear-gradient(135deg, rgba(56, 189, 248, 0.15) 0%, rgba(139, 92, 246, 0.18) 50%, rgba(244, 63, 94, 0.12) 100%);
    
    --neon-purple: #8b5cf6;
    --neon-cyan: #38bdf8;
    --neon-emerald: #10b981;
    --neon-rose: #f43f5e;
    --neon-amber: #f59e0b;
    --neon-indigo: #6366f1;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --danger: #ef4444;

    --input-bg: rgba(255, 255, 255, 0.04);
    --input-border: rgba(255, 255, 255, 0.12);
    --user-msg-bg: linear-gradient(135deg, rgba(99, 102, 241, 0.22) 0%, rgba(139, 92, 246, 0.15) 100%);
    --user-msg-border: rgba(139, 92, 246, 0.35);
    --bot-msg-bg: rgba(255, 255, 255, 0.04);
    --bot-msg-border: rgba(255, 255, 255, 0.08);

    --scrollbar-track: rgba(0, 0, 0, 0.25);
    --scrollbar-thumb: rgba(255, 255, 255, 0.2);
    accent-color: var(--neon-purple);
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* تم مدرن روشن و کریستالی (Crystal Light Mode) */
[data-theme="light"] {
    color-scheme: light;
    --bg-base: #f1f5f9;
    --bg-canvas: #f8fafc;
    --sidebar-bg: rgba(255, 255, 255, 0.95);
    --card-bg: rgba(255, 255, 255, 0.88);
    --card-border: rgba(203, 213, 225, 0.8);
    --card-hover-border: #8b5cf6;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    --primary-gradient: linear-gradient(135deg, #0284c7 0%, #6366f1 45%, #9333ea 100%);
    --aurora-gradient: linear-gradient(135deg, rgba(2, 132, 199, 0.08) 0%, rgba(99, 102, 241, 0.1) 50%, rgba(244, 63, 94, 0.06) 100%);

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --user-msg-bg: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(56, 189, 248, 0.08) 100%);
    --user-msg-border: rgba(99, 102, 241, 0.28);
    --bot-msg-bg: #ffffff;
    --bot-msg-border: rgba(226, 232, 240, 0.95);

    --scrollbar-track: #f1f5f9;
    --scrollbar-thumb: #cbd5e1;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Vazirmatn', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background: var(--bg-base);
    background-image: 
        radial-gradient(circle at 12% 15%, rgba(99, 102, 241, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 88% 85%, rgba(192, 132, 252, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 60%);
    color: var(--text-primary);
    direction: rtl;
    text-align: right;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}

[data-theme="light"] body {
    background-image: 
        radial-gradient(circle at 10% 12%, rgba(99, 102, 241, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 90% 88%, rgba(56, 189, 248, 0.08) 0%, transparent 45%);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-purple);
}

/* Glass Card */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transition: all 0.25s ease;
}

.glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-gradient);
}

/* App Container */
#app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
#sidebar {
    width: 310px;
    background: var(--sidebar-bg);
    border-left: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    padding: 22px 18px;
    flex-shrink: 0;
    z-index: 50;
    overflow-y: auto;
    position: relative;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transition: background 0.3s ease, border-color 0.3s ease;
}

.brand-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--card-border);
}

.brand-header svg, .brand-header img {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    filter: drop-shadow(0 4px 14px rgba(139, 92, 246, 0.4));
}

.brand-header h2 {
    font-size: 1.35rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* User Profile Box */
.user-profile-box {
    background: var(--aurora-gradient);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 18px;
    text-align: center;
    position: relative;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.user-profile-box .role-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--neon-cyan);
    background: rgba(56, 189, 248, 0.12);
    padding: 2px 10px;
    border-radius: 12px;
    display: inline-block;
    margin-bottom: 4px;
}

[data-theme="light"] .user-profile-box .role-badge {
    color: #0369a1;
    background: rgba(2, 132, 199, 0.12);
}

.user-profile-box .username {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.user-profile-box .balance {
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Active Provider Pill */
.provider-pill {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10b981;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 16px;
    border-radius: 14px;
    color: var(--text-secondary);
    font-size: 0.94rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    transform: translateX(-4px);
}

[data-theme="light"] .nav-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.18) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-color: rgba(139, 92, 246, 0.35);
    color: var(--neon-purple);
    font-weight: 700;
    border-right: 4px solid var(--neon-purple);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.12);
}

[data-theme="light"] .nav-item.active {
    background: rgba(139, 92, 246, 0.12);
    color: #6d28d9;
}

/* Chat Sessions Sidebar */
.sessions-section {
    flex-grow: 1;
    overflow-y: auto;
    margin-top: 8px;
    padding-top: 14px;
    border-top: 1px solid var(--card-border);
}

.sessions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.session-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    margin-bottom: 5px;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
}

[data-theme="light"] .session-btn {
    background: rgba(0, 0, 0, 0.02);
}

.session-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .session-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.session-btn.active {
    background: rgba(139, 92, 246, 0.2);
    color: var(--text-primary);
    border-color: rgba(139, 92, 246, 0.35);
    font-weight: 600;
}

/* Main Workspace */
#main-content {
    flex-grow: 1;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: 24px 36px;
}

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 22px;
}

.top-header h1 {
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--text-primary);
}

.top-header p {
    font-size: 0.86rem;
    color: var(--text-muted);
    margin-top: 3px;
}

/* Category Filter Chips */
.category-chips-bar {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 10px;
    margin-bottom: 14px;
}

.chip-btn {
    padding: 7px 15px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 0.84rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

[data-theme="light"] .chip-btn {
    background: #ffffff;
    border-color: #cbd5e1;
    color: #475569;
}

.chip-btn:hover {
    background: rgba(255, 255, 255, 0.09);
    color: var(--text-primary);
    border-color: var(--neon-purple);
}

[data-theme="light"] .chip-btn:hover {
    background: #f1f5f9;
}

.chip-btn.active {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(56, 189, 248, 0.15) 100%);
    border-color: var(--neon-purple);
    color: var(--text-primary);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}

[data-theme="light"] .chip-btn.active {
    background: #ede9fe;
    color: #6d28d9;
    border-color: #8b5cf6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 12px;
    border: none;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.22s ease;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.35);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
}

[data-theme="light"] .btn-secondary {
    background: #f8fafc;
    border-color: #cbd5e1;
    color: #1e293b;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--card-hover-border);
}

[data-theme="light"] .btn-secondary:hover {
    background: #e2e8f0;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.btn-danger:hover {
    background: #ef4444;
    color: #fff;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.82rem;
    border-radius: 8px;
}

/* Forms */
.form-control {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 0.92rem;
    outline: none;
    transition: all 0.2s;
}

.form-control:focus {
    border-color: var(--neon-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18);
}

/* Chat Studio Area */
.chat-container {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    min-height: 480px;
}

.messages-list {
    flex-grow: 1;
    overflow-y: auto;
    padding: 12px 6px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: calc(100vh - 380px);
}

.message-bubble {
    display: flex;
    gap: 14px;
    max-width: 90%;
    animation: fadeIn 0.25s ease-out;
}

.message-bubble.user {
    align-self: flex-start;
    flex-direction: row;
}

.message-bubble.assistant {
    align-self: flex-start;
    width: 100%;
    max-width: 100%;
}

.message-avatar {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

.message-content {
    background: var(--bot-msg-bg);
    border: 1px solid var(--bot-msg-border);
    border-radius: 18px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 0.96rem;
    line-height: 1.8;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.message-bubble.user .message-content {
    background: var(--user-msg-bg);
    border-color: var(--user-msg-border);
}

/* ========================================== */
/* استایل‌های استاندارد و جامع مارک‌داون (Markdown Typography) */
/* ========================================== */
.message-content h1, 
.message-content h2, 
.message-content h3, 
.message-content h4, 
.message-content h5, 
.message-content h6 {
    color: var(--text-primary);
    font-weight: 800;
    margin-top: 18px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.message-content h1 {
    font-size: 1.35rem;
    border-bottom: 2px solid var(--neon-purple);
    padding-bottom: 6px;
}

.message-content h2 {
    font-size: 1.22rem;
    color: var(--neon-purple);
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 4px;
}

.message-content h3 {
    font-size: 1.1rem;
    color: var(--neon-cyan);
}

.message-content h4 {
    font-size: 1.0rem;
    color: var(--neon-emerald);
}

.message-content p {
    margin-bottom: 10px;
    line-height: 1.8;
}

.message-content ul, 
.message-content ol {
    margin: 10px 0;
    padding-right: 24px;
}

.message-content li {
    margin-bottom: 7px;
    line-height: 1.75;
}

.message-content ul li {
    list-style-type: disc;
}

.message-content ol li {
    list-style-type: decimal;
}

.message-content strong, 
.message-content b {
    color: var(--text-primary);
    font-weight: 700;
}

.message-content blockquote {
    border-right: 4px solid var(--neon-purple);
    padding: 10px 18px;
    margin: 14px 0;
    background: rgba(139, 92, 246, 0.08);
    border-radius: 0 10px 10px 0;
    color: var(--text-secondary);
    font-style: italic;
}

[data-theme="light"] .message-content blockquote {
    background: #ede9fe;
    color: #4b5563;
}

.message-content table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 16px 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.message-content th, 
.message-content td {
    padding: 11px 16px;
    text-align: right;
    border-bottom: 1px solid var(--card-border);
}

.message-content th {
    background: rgba(139, 92, 246, 0.15);
    color: var(--text-primary);
    font-weight: 700;
}

[data-theme="light"] .message-content th {
    background: #e0e7ff;
    color: #1e1b4b;
}

.message-content tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="light"] .message-content tr:nth-child(even) td {
    background: #f8fafc;
}

.message-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--card-border), transparent);
    margin: 18px 0;
}

.message-content code {
    font-family: 'Fira Code', monospace;
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 7px;
    border-radius: 6px;
    font-size: 0.88rem;
    color: var(--neon-cyan);
}

[data-theme="light"] .message-content code {
    background: #e2e8f0;
    color: #0284c7;
}

.message-content pre {
    background: #0f172a;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 14px 16px;
    overflow-x: auto;
    margin: 14px 0;
    direction: ltr;
    text-align: left;
}

[data-theme="light"] .message-content pre {
    background: #1e293b;
    border-color: #cbd5e1;
}

.message-content pre code {
    background: transparent;
    padding: 0;
    color: #f1f5f9;
}

/* Chat Input Bar */
.chat-input-bar {
    margin-top: 14px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
    backdrop-filter: blur(14px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.chat-input-bar textarea {
    flex-grow: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    resize: none;
    height: 48px;
    outline: none;
    font-size: 0.96rem;
    padding: 10px 4px;
    line-height: 1.5;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 16px;
    font-size: 0.76rem;
    font-weight: 600;
}
.badge-free { background: rgba(16, 185, 129, 0.18); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-reasoning { background: rgba(139, 92, 246, 0.18); color: #c084fc; border: 1px solid rgba(139, 92, 246, 0.3); }
.badge-coding { background: rgba(56, 189, 248, 0.18); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.badge-flagship { background: rgba(244, 63, 94, 0.18); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }
.badge-pending { background: rgba(245, 158, 11, 0.18); color: #fbbf24; }
.badge-approved { background: rgba(16, 185, 129, 0.18); color: #10b981; }
.badge-rejected { background: rgba(239, 68, 68, 0.18); color: #ef4444; }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* Tabs */
.tabs-nav {
    display: flex;
    gap: 10px;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 12px;
    margin-bottom: 22px;
}
.tab-btn {
    padding: 9px 20px;
    border-radius: 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.tab-btn:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.04); }
[data-theme="light"] .tab-btn:hover { background: rgba(0, 0, 0, 0.04); }

.tab-btn.active {
    background: rgba(139, 92, 246, 0.16);
    color: var(--neon-purple);
    border-bottom: 2px solid var(--neon-purple);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.84rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

[data-theme="light"] .theme-toggle-btn {
    background: #ffffff;
    border-color: #cbd5e1;
}

.theme-toggle-btn:hover {
    border-color: var(--neon-purple);
    transform: scale(1.02);
}

/* Model Explorer Cards */
.model-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.22s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.model-card:hover {
    border-color: var(--neon-purple);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.15);
}

/* Knowledge Collection Card */
.collection-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 18px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.collection-card:hover, .collection-card.active {
    border-color: var(--neon-cyan);
    background: var(--aurora-gradient);
    transform: translateY(-2px);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
}
.modal-body {
    width: 90%;
    max-width: 580px;
    background: var(--bg-canvas);
    border: 1px solid var(--card-border);
    border-radius: 22px;
    padding: 28px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.5);
    color: var(--text-primary);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 960px) {
    #sidebar { width: 250px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    #main-content { padding: 18px; }
}