:root {
            /* Clean minimal palette — white surfaces, one confident accent */
            --white: #ffffff;
            --accent: #1D4ED8;       /* trust blue — the single accent color */
            --accent-600: #1E40AF;
            --accent-500: #2563EB;
            --accent-100: #DBEAFE;   /* soft accent tint for subtle fills */
            --accent-50: #EFF6FF;
            --sky-50: var(--accent-50);
            --sky-100: var(--accent-100);
            --sky-200: #C7D2FE;
            --sky-400: var(--accent-500);
            --sky-500: var(--accent);
            --sky-600: var(--accent-600);
            --indigo-500: var(--accent-500);
            --indigo-600: var(--accent-600);
            --violet-500: var(--accent-500);
            --violet-600: var(--accent-600);
            --pink-500: var(--accent-500);
            --gray-50: #FAFAFA;
            --gray-100: #F4F4F5;
            --gray-200: #E4E4E7;
            --gray-300: #D4D4D8;
            --gray-500: #71717A;
            --gray-600: #52525B;
            --gray-700: #3F3F46;
            --gray-900: #18181B;
            --gradient-primary: var(--accent);
            --gradient-soft: var(--accent-50);
            --gradient-qr: var(--accent);
            --shadow-sm: 0 1px 3px rgba(24, 24, 27, 0.05);
            --shadow-md: 0 4px 16px rgba(24, 24, 27, 0.06);
            --shadow-lg: 0 16px 40px rgba(24, 24, 27, 0.10);
            --shadow-glow: 0 8px 24px rgba(29, 78, 216, 0.22);
            --shadow-glow-qr: 0 8px 24px rgba(29, 78, 216, 0.22);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --bg: var(--white);
            --surface: var(--white);
            --text: var(--gray-900);
            --text-muted: var(--gray-600);
            --border: var(--gray-200);
        }

        [data-theme="dark"] {
            --bg: #0f0f12;
            --surface: #17171b;
            --text: #f4f4f5;
            --text-muted: #a1a1aa;
            --border: #2a2a30;
            --gray-50: #141417;
            --gray-100: #1c1c21;
            --accent-50: #111a2e;
            --accent-100: #16244a;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            line-height: 1.65;
            transition: background 0.3s ease, color 0.3s ease;
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        ::selection { background: var(--sky-200); color: var(--gray-900); }

        /* ===== Header ===== */
        .main-header {
            background: rgba(255, 255, 255, 0.8);
            padding: 14px 20px;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        [data-theme="dark"] .main-header {
            background: rgba(11, 18, 32, 0.75);
            border-bottom: 1px solid var(--border);
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-container {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo {
            font-size: 1.6rem;
            background: var(--gradient-primary);
            color: white;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-glow);
        }

        .logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            color: var(--text-muted);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 14px;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: var(--sky-600);
            background: var(--sky-50);
        }

        [data-theme="dark"] .nav-link:hover {
            background: rgba(56, 189, 248, 0.12);
            color: var(--sky-400);
        }

        .theme-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            margin-left: 8px;
            transition: all 0.25s ease;
            font-size: 0.95rem;
        }

        .theme-toggle:hover {
            border-color: var(--sky-400);
            color: var(--sky-500);
            transform: rotate(15deg);
        }

        .mobile-menu-btn {
            display: none;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1.1rem;
            cursor: pointer;
        }

        /* ===== Nav "Tools" dropdown ===== */
        .nav-item {
            position: relative;
        }

        .dropdown-trigger {
            background: none;
            border: none;
            font-family: inherit;
        }

        .dropdown-caret {
            font-size: 0.65rem;
            margin-left: 4px;
            transition: transform 0.25s ease;
        }

        .nav-item:hover .dropdown-caret,
        .nav-item.open .dropdown-caret {
            transform: rotate(180deg);
        }

        .nav-dropdown-menu {
            position: absolute;
            top: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%) translateY(6px);
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 10px;
            min-width: 250px;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
            z-index: 1100;
        }

        @media (hover: hover) and (pointer: fine) {
            .nav-item:hover .nav-dropdown-menu {
                opacity: 1;
                visibility: visible;
                transform: translateX(-50%) translateY(0);
            }
        }

        .nav-item.open .nav-dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .dropdown-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: 10px;
            color: var(--text);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.2s ease;
        }

        .dropdown-item:hover {
            background: var(--sky-50);
        }

        [data-theme="dark"] .dropdown-item:hover {
            background: rgba(56, 189, 248, 0.12);
        }

        .dropdown-item-icon {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-50);
            color: var(--accent);
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .dropdown-item-text {
            display: block;
        }

        .dropdown-item-text small {
            display: block;
            color: var(--text-muted);
            font-weight: 400;
            font-size: 0.78rem;
            margin-top: 1px;
        }

        /* ===== Recent Links panel (homepage, per-browser via localStorage) ===== */
        .recent-links-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .recent-links-table th, .recent-links-table td {
            text-align: left;
            padding: 10px 12px;
            border-bottom: 1px solid var(--border);
            vertical-align: middle;
        }
        .recent-links-table th {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }
        .recent-links-table td.dest-cell {
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            color: var(--text-muted);
        }
        .recent-links-table .rl-short {
            font-weight: 600;
            color: var(--sky-600);
            text-decoration: none;
        }
        .recent-links-table .rl-copy {
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 3px 9px;
            font-size: 0.75rem;
            cursor: pointer;
            color: var(--text-muted);
            margin-left: 6px;
        }
        .recent-links-table .rl-copy:hover { color: var(--sky-600); border-color: var(--sky-500); }
        .recent-links-empty {
            text-align: center;
            color: var(--text-muted);
            padding: 30px 20px;
            font-size: 0.9rem;
        }

        /* ===== Result action buttons (Visit URL / QR / Share / Copy) ===== */
        .result-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 18px;
        }
        .result-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 9px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main, inherit);
            cursor: pointer;
            transition: border-color 0.15s ease, color 0.15s ease;
        }
        .result-action-btn:hover {
            border-color: var(--sky-500);
            color: var(--sky-600);
        }
        .result-action-btn i { color: var(--sky-500); }

        /* ===== Brand mark (inline SVG logo, replaces generic icon font) ===== */
        .brand-mark {
            width: 1em;
            height: 1em;
            display: inline-block;
            vertical-align: -0.15em;
            flex-shrink: 0;
        }
        .logo .brand-mark {
            width: 24px;
            height: 24px;
            vertical-align: middle;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 90px 20px 70px;
            text-align: center;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--gradient-soft);
            isolation: isolate;
        }

        [data-theme="dark"] .hero {
            background: radial-gradient(120% 120% at 50% 0%, #14203a 0%, #0b1220 60%);
        }

        .hero::before,
        .hero::after {
            content: '';
            position: absolute;
            border-radius: 50%;
            filter: blur(0px);
            z-index: -1;
            animation: float 8s ease-in-out infinite;
        }

        .hero::before {
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, var(--sky-200) 0%, transparent 70%);
            top: -60px;
            left: -60px;
        }

        .hero::after {
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, #c7d2fe 0%, transparent 70%);
            bottom: -100px;
            right: -80px;
            animation-delay: 2s;
        }

        .hero-content::after {
            content: '';
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            top: 30%;
            right: 6%;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.18) 0%, transparent 70%);
            z-index: -1;
            animation: float 8s ease-in-out infinite 1s;
            pointer-events: none;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) translateX(0); }
            50% { transform: translateY(-22px) translateX(14px); }
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--sky-600);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 999px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .hero-badge i { color: #facc15; }

        .hero-content h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 700;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--gray-900) 20%, var(--sky-600) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        [data-theme="dark"] .hero-content h1 {
            background: linear-gradient(135deg, #f1f5f9 20%, var(--sky-400) 100%);
            -webkit-background-clip: text;
            background-clip: text;
        }

        .hero-content > p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 36px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-trust {
            display: flex;
            gap: 28px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 44px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }

        .hero-trust i { color: var(--sky-500); }

        /* ===== Buttons ===== */
        .btn, .btn-primary, .btn-secondary, .cta-button {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 600;
            font-size: 1rem;
            padding: 15px 30px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
        }

        .btn-primary, .btn, .cta-button {
            background: var(--gradient-primary);
            color: white;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover, .btn:hover, .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(14, 165, 233, 0.35);
        }

        .btn-secondary {
            background: var(--surface);
            color: var(--sky-600);
            border: 1.5px solid var(--sky-200);
        }

        .btn-qr {
            background: var(--gradient-qr);
            color: white;
            box-shadow: var(--shadow-glow-qr);
        }

        .btn-qr:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(139, 92, 246, 0.35);
        }

        .btn-secondary:hover {
            transform: translateY(-3px);
            background: var(--sky-50);
            border-color: var(--sky-400);
            box-shadow: var(--shadow-md);
        }

        /* ===== Section titles ===== */
        .section-title {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-title h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
        }

        section { margin: 70px 0; }

        /* ===== Cards (generic) ===== */
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            padding: 48px;
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--sky-200);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--gradient-primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            box-shadow: var(--shadow-glow);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .feature-card p { color: var(--text-muted); font-size: 0.95rem; }

        /* ===== Shortener tool ===== */
        .shortener-section {
            background: var(--surface);
            text-align: center;
        }

        .input-group {
            display: flex;
            gap: 12px;
            max-width: 640px;
            margin: 32px auto 0;
            flex-wrap: wrap;
        }

        .url-input {
            flex: 1;
            min-width: 220px;
            padding: 16px 20px;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            background: var(--bg);
            color: var(--text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .url-input:focus {
            outline: none;
            border-color: var(--sky-400);
            box-shadow: 0 0 0 4px var(--sky-100);
        }

        .loading { display: none; margin-top: 24px; }

        .loading-spinner {
            width: 36px;
            height: 36px;
            border: 4px solid var(--sky-100);
            border-top-color: var(--sky-500);
            border-radius: 50%;
            margin: 0 auto;
            animation: spin 0.8s linear infinite;
        }

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

        .error-message {
            display: none;
            margin-top: 20px;
            color: #dc2626;
            background: #fef2f2;
            border: 1px solid #fecaca;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
        }

        .result {
            display: none;
            margin-top: 32px;
            animation: fadeUp 0.4s ease;
        }

        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(12px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .shortened-url-container {
            background: var(--gradient-soft);
            border: 1px solid var(--sky-200);
            border-radius: var(--radius-md);
            padding: 28px;
            max-width: 480px;
            margin: 0 auto;
        }

        [data-theme="dark"] .shortened-url-container {
            background: rgba(56, 189, 248, 0.06);
            border-color: var(--border);
        }

        .shortened-url-container h4 {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .shortened-url-link {
            display: block;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--sky-600);
            word-break: break-all;
            margin-bottom: 18px;
            text-decoration: none;
        }

        .copy-btn {
            background: var(--gradient-primary);
            color: white;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s ease;
        }

        .copy-btn:hover { transform: translateY(-2px); }
        .copy-btn.copied { background: #16a34a; }

        /* ===== Specialized shorteners ===== */
        .shorteners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }

        .shortener-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .shortener-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .shortener-icon {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--sky-50);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin: 0 auto 16px;
        }

        [data-theme="dark"] .shortener-icon { background: rgba(56, 189, 248, 0.1); }

        .shortener-card h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 600; }
        .shortener-card p { color: var(--text-muted); font-size: 0.9rem; }
        .learn-more-link { display: inline-block; margin-top: 10px; font-size: 0.85rem; color: var(--sky-600); text-decoration: none; font-weight: 600; }
        .learn-more-link:hover { text-decoration: underline; }
        .blog-grid .card { transition: transform 0.15s ease, box-shadow 0.15s ease; }
        .blog-grid .card:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.08); }

        /* ===== Stats ===== */
        .stats-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            background: var(--gradient-primary);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            box-shadow: var(--shadow-lg);
        }

        .stat-item {
            text-align: center;
            color: white;
            position: relative;
        }

        .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 1.1rem;
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        /* ===== FAQ ===== */
        .faq-container {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .faq-item:hover { border-color: var(--sky-200); }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--sky-500);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-question::after { transform: rotate(180deg); }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 22px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--gray-900);
            color: #cbd5e1;
            margin-top: 90px;
            padding: 64px 20px 24px;
        }

        [data-theme="dark"] .footer { background: #060a14; }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-section h3 {
            color: white;
            font-size: 1.1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-section > p { font-size: 0.9rem; line-height: 1.7; color: #94a3b8; }

        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }

        .footer-links a, .footer-links li {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.25s ease;
        }

        .footer-links a:hover { color: var(--sky-400); }
        .footer-links i { color: var(--sky-500); width: 16px; }

        .social-icons { display: flex; gap: 10px; margin-top: 20px; }

        .social-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: #cbd5e1;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        .social-icon:hover { background: var(--gradient-primary); color: white; transform: translateY(-3px); }

        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        /* ===== Blog / Contact / Privacy content sections ===== */
        .content-section { padding: 20px 0; }
        .about-section p { color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
        .about-section p:last-child { margin-bottom: 0; }
        .about-section a { color: var(--sky-600); font-weight: 600; text-decoration: none; }
        .about-section a:hover { text-decoration: underline; }
        .blog-section, .contact-section, .privacy-section { background: var(--surface); }
        .blog-title, .privacy-content h2 { color: var(--text); }
        .blog-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700; }
        .blog-meta { color: var(--text-muted); font-size: 0.85rem; display: flex; gap: 16px; flex-wrap: wrap; margin: 10px 0 24px; }
        .blog-content, .privacy-content { color: var(--text-muted); line-height: 1.8; }
        .blog-content h2, .blog-content h3, .privacy-content h3 { color: var(--text); margin: 28px 0 12px; }
        .highlight { background: var(--sky-50); padding: 2px 6px; border-radius: 4px; }
        [data-theme="dark"] .highlight { background: rgba(56,189,248,0.12); }

        .keyword-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
        .keyword-tag {
            background: var(--sky-50);
            color: var(--sky-600);
            font-size: 0.82rem;
            padding: 6px 12px;
            border-radius: 999px;
            font-weight: 500;
        }
        [data-theme="dark"] .keyword-tag { background: rgba(56,189,248,0.1); }

        .conclusion-box {
            background: var(--gradient-soft);
            border: 1px solid var(--sky-200);
            border-radius: var(--radius-md);
            padding: 28px;
            margin: 28px 0;
        }
        [data-theme="dark"] .conclusion-box { background: rgba(56,189,248,0.06); border-color: var(--border); }
        .conclusion-title { color: var(--text); font-weight: 700; margin-bottom: 10px; }

        .platform-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin: 20px 0; }
        .platform-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 18px; text-align: center; }
        .platform-icon { font-size: 1.5rem; color: var(--sky-500); margin-bottom: 8px; }
        .platform-name { font-size: 0.9rem; font-weight: 600; }

        /* Contact form */
        .form-group { margin-bottom: 20px; text-align: left; }
        .form-label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.9rem; }
        .form-input, .form-textarea {
            width: 100%;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border);
            background: var(--bg);
            color: var(--text);
            font-family: inherit;
        }
        .form-input:focus, .form-textarea:focus { outline: none; border-color: var(--sky-400); box-shadow: 0 0 0 4px var(--sky-100); }
        .form-textarea { min-height: 140px; resize: vertical; }
        .contact-message { margin-top: 16px; padding: 14px 18px; border-radius: var(--radius-sm); background: #f0fdf4; color: #16a34a; display: none; }

        /* ===== Mobile ===== */
        @media (max-width: 900px) {
            .footer-container { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .main-nav {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                align-items: stretch;
                padding: 12px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 16px 16px;
                display: none;
            }
            .main-nav.active { display: flex; }
            .mobile-menu-btn { display: flex; align-items: center; justify-content: center; }
            .nav-dropdown-menu {
                position: absolute;
                top: calc(100% + 4px);
                left: 0;
                right: 0;
                transform: none !important;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border);
                background: var(--surface);
                border-radius: var(--radius-md);
                margin: 0;
                padding: 8px;
                display: none;
                opacity: 1;
                visibility: visible;
                min-width: 0;
                z-index: 1200;
            }
            .nav-item.open .nav-dropdown-menu { display: grid; }
            .dropdown-trigger { width: 100%; justify-content: space-between; }
            .hero { padding: 60px 16px 44px; }
            .hero-buttons { flex-direction: column; align-items: stretch; }
            .hero-buttons a { justify-content: center; }
            .card { padding: 28px 20px; }
            .footer-container { grid-template-columns: 1fr; }
            .input-group { flex-direction: column; }
            section { margin: 48px 0; }
        }


        /* ===== Standalone page chrome (guide/faq/etc pages) ===== */
        .breadcrumbs {
            max-width: 1200px;
            margin: 18px auto 0;
            padding: 0 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumbs a { color: var(--sky-600); text-decoration: none; }
        .breadcrumbs a:hover { text-decoration: underline; }
        .breadcrumbs .sep { margin: 0 6px; color: var(--gray-300); }

        .page-hero {
            text-align: center;
            padding: 40px 20px 10px;
        }
        .page-hero .eyebrow {
            color: var(--sky-600);
            font-weight: 600;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--sky-600);
            text-decoration: none;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .back-home-link:hover { text-decoration: underline; }

.filter-tab {
    padding: 8px 16px;
    border-radius: 999px;
    border: 1.5px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .15s ease;
}
.filter-tab:hover { border-color: var(--accent); color: var(--accent); }
.filter-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }