:root {
            --c1: #06a9c4;
            --c2: #0a4d59;
            --grad: linear-gradient(135deg, #06a9c4, #0a4d59);
            --bg: #f2f8fa;
            --surface: #ffffff;
            --surface-alt: #f0f7f9;
            --border: #d4edf3;
            --text: #1a2e35;
            --muted: #6b8a94;
            --input-bg: #f7fbfc;
            --input-border: #d0e8ef;
        }

        html.dark {
            --bg: #081a20;
            --surface: #0d2630;
            --surface-alt: #0a1f28;
            --border: #1a3d4a;
            --text: #e2edf0;
            --muted: #7aa5b0;
            --input-bg: #0a1f28;
            --input-border: #1e4557;
        }

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

        html {
            transition: background-color .3s, color .3s;
        }

        body {
            font-family: 'Play', sans-serif;
            background: var(--bg);
            color: var(--text);
            transition: background-color .3s, color .3s;
            -webkit-font-smoothing: antialiased;
        }

        /* ── SCROLLBAR ───────────────────────────────────────────────────── */
        ::-webkit-scrollbar {
            width: 4px;
        }

        ::-webkit-scrollbar-track {
            background: transparent;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--c1);
            border-radius: 2px;
        }

        /* ── GLASS EFFECTS (exact provided) ─────────────────────────────── */
        .glass-light {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.22);
        }

        .dark .glass-dark {
            background: rgba(0, 0, 0, 0.28);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.10);
        }

        /* ── TOGGLE (exact provided) ─────────────────────────────────────── */
        .toggle-track {
            width: 44px;
            height: 24px;
            border-radius: 999px;
            position: relative;
            cursor: pointer;
        }

        .toggle-thumb {
            position: absolute;
            top: 3px;
            left: 3px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: white;
            transition: transform 0.3s;
        }

        html.dark .toggle-thumb {
            transform: translateX(20px);
        }

        /* ── HAMBURGER (exact provided) ──────────────────────────────────── */
        .ham-line {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }

        .ham-open .ham-top {
            transform: translateY(7px) rotate(45deg);
        }

        .ham-open .ham-mid {
            opacity: 0;
        }

        .ham-open .ham-bot {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ── MOBILE MENU (exact provided) ────────────────────────────────── */
        .mobile-menu {
            opacity: 0;
            transform: translateY(-12px);
            pointer-events: none;
            transition: 0.3s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .menu-overlay {
            opacity: 0;
            pointer-events: none;
            transition: 0.3s ease;
        }

        .menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        /* ── BUTTONS ─────────────────────────────────────────────────────── */
        .btn-gradient {
            background: linear-gradient(135deg, #06a9c4, #0a4d59);
            color: white;
            text-decoration: none;
            transition: opacity .2s, transform .2s, box-shadow .2s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-gradient:hover {
            opacity: .88;
            transform: translateY(-1px);
            box-shadow: 0 8px 28px rgba(6, 169, 196, .28);
        }

        /* ── HERO ────────────────────────────────────────────────────────── */
        .hero-gradient {
            background: linear-gradient(to bottom right, #06a9c4, #0a4d59);
            position: relative;
            overflow: hidden;
        }

        .hero-gradient::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 15% 50%, rgba(255, 255, 255, 0.09) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 20%, rgba(255, 255, 255, 0.06) 0%, transparent 50%);
            pointer-events: none;
        }

        /* ── CONTENT CARDS ───────────────────────────────────────────────── */
        .content-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 36px 40px;
            transition: border-color .25s, box-shadow .25s;
        }

        .content-card:hover {
            border-color: rgba(6, 169, 196, .30);
            box-shadow: 0 6px 36px rgba(6, 169, 196, .07);
        }

        @media (max-width: 640px) {
            .content-card {
                padding: 24px 20px;
            }
        }

        /* ── SECTION BADGE ───────────────────────────────────────────────── */
        .section-badge {
            display: inline-block;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--c1);
            background: rgba(6, 169, 196, .08);
            border: 1px solid rgba(6, 169, 196, .18);
            border-radius: 999px;
            padding: 4px 14px;
            margin-bottom: 14px;
        }

        /* ── GRAD LINE ───────────────────────────────────────────────────── */
        .grad-line {
            height: 2px;
            background: linear-gradient(to right, #06a9c4, #0a4d59);
            border-radius: 2px;
            width: 48px;
            margin-bottom: 20px;
        }

        /* ── TYPOGRAPHY ──────────────────────────────────────────────────── */
        .section-h2 {
            font-family: 'Play', sans-serif;
            font-weight: 700;
            font-size: clamp(1.2rem, 2.5vw, 1.5rem);
            color: var(--text);
            letter-spacing: -.02em;
            margin-bottom: 16px;
        }

        .prose-body {
            font-family: 'Literata', Georgia, serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--muted);
        }

        .prose-body+.prose-body {
            margin-top: 12px;
        }

        /* ── SUPPORT LIST ────────────────────────────────────────────────── */
        .support-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .support-list li {
            display: flex;
            gap: 11px;
            align-items: flex-start;
            font-family: 'Literata', Georgia, serif;
            font-size: 14.5px;
            line-height: 1.6;
            color: var(--muted);
        }

        .support-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: linear-gradient(135deg, #06a9c4, #0a4d59);
            flex-shrink: 0;
            margin-top: 8px;
        }

        /* ── FORM FIELDS ─────────────────────────────────────────────────── */
        .form-label {
            display: block;
            font-family: 'Play', sans-serif;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: .07em;
            text-transform: uppercase;
            color: var(--muted);
            margin-bottom: 7px;
        }

        .form-input {
            width: 100%;
            background: var(--input-bg);
            border: 1px solid var(--input-border);
            color: var(--text);
            font-family: 'Play', sans-serif;
            font-size: 14px;
            border-radius: 12px;
            padding: 11px 15px;
            outline: none;
            transition: border-color .2s, box-shadow .2s;
            appearance: none;
        }

        .form-input:focus {
            border-color: var(--c1);
            box-shadow: 0 0 0 3px rgba(6, 169, 196, .13);
        }

        .form-input::placeholder {
            color: var(--muted);
            opacity: .65;
        }

        textarea.form-input {
            resize: vertical;
            min-height: 130px;
            line-height: 1.6;
        }

        .form-input.error {
            border-color: #f05060;
            box-shadow: 0 0 0 3px rgba(240, 80, 96, .12);
        }

        /* ── FIELD ERROR MESSAGE ─────────────────────────────────────────── */
        .field-error {
            font-family: 'Play', sans-serif;
            font-size: 11px;
            color: #e53e50;
            margin-top: 5px;
            display: none;
        }

        .field-error.show {
            display: block;
        }

        /* ── SUCCESS BANNER ──────────────────────────────────────────────── */
        #successBanner {
            display: none;
            background: linear-gradient(135deg, #06a9c4, #0a4d59);
            color: #fff;
            border-radius: 14px;
            padding: 20px 24px;
            text-align: center;
            margin-bottom: 24px;
        }

        #successBanner.show {
            display: block;
        }

        #successBanner .success-title {
            font-family: 'Play', sans-serif;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 6px;
        }

        #successBanner .success-sub {
            font-family: 'Literata', Georgia, serif;
            font-size: 14px;
            opacity: .85;
        }

        /* ── CONTACT INFO CARD ───────────────────────────────────────────── */
        .contact-info-card {
            background: var(--surface-alt);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            transition: border-color .2s;
        }

        .contact-info-card:hover {
            border-color: rgba(6, 169, 196, .3);
        }

        .contact-info-label {
            font-family: 'Play', sans-serif;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: .1em;
            text-transform: uppercase;
            color: var(--c1);
            margin-bottom: 2px;
        }

        .contact-info-value {
            font-family: 'Play', sans-serif;
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
        }

        .contact-info-sub {
            font-family: 'Literata', Georgia, serif;
            font-size: 13px;
            color: var(--muted);
            line-height: 1.5;
        }

        /* ── REVEAL ──────────────────────────────────────────────────────── */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity .55s ease, transform .55s ease;
        }

        .reveal.in {
            opacity: 1;
            transform: translateY(0);
        }

        /* ── FOOTER ──────────────────────────────────────────────────────── */
        .footer-link {
            color: var(--muted);
            text-decoration: none;
            font-size: 13px;
            display: block;
            margin-bottom: 8px;
            transition: color .2s;
        }

        .footer-link:hover {
            color: var(--c1);
        }

        /* ── SUBMIT BUTTON ───────────────────────────────────────────────── */
        .submit-btn {
            background: linear-gradient(135deg, #06a9c4, #0a4d59);
            color: #fff;
            border: none;
            cursor: pointer;
            font-family: 'Play', sans-serif;
            font-weight: 700;
            font-size: 14px;
            border-radius: 12px;
            padding: 13px 32px;
            width: 100%;
            transition: opacity .2s, transform .2s, box-shadow .2s;
        }

        .submit-btn:hover {
            opacity: .88;
            transform: translateY(-1px);
            box-shadow: 0 8px 28px rgba(6, 169, 196, .30);
        }

        .submit-btn:active {
            transform: translateY(0);
        }

        .submit-btn:disabled {
            opacity: .55;
            cursor: not-allowed;
            transform: none;
        }