/* ── Base & Utilities ── */
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 80px; }
    body { overflow-x: hidden; }

    /* ── Navigation ── */
    .nav-scrolled {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 100;
        background: transparent;
        transition: background 0.3s ease, box-shadow 0.3s ease;
    }
    .nav-scrolled.scrolled {
        background: rgba(16, 28, 51, 0.97);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
        backdrop-filter: blur(10px);
    }

    /* ── Mobile Menu ── */
    .nav-toggle .line:nth-child(1) { transform-origin: center; }
    .nav-toggle .line:nth-child(2) { transform-origin: center; }
    .nav-toggle .line:nth-child(3) { transform-origin: center; }
    .nav-toggle.active .line:nth-child(1) { transform: translateY(4px) rotate(45deg); }
    .nav-toggle.active .line:nth-child(2) { opacity: 0; }
    .nav-toggle.active .line:nth-child(3) { transform: translateY(-4px) rotate(-45deg); width: 20px; }

    /* ── Hero ── */
    .hero {
        position: relative;
        min-height: 100vh;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(16,28,51,0.95) 0%, rgba(16,28,51,0.7) 60%, rgba(224,82,46,0.15) 100%);
        z-index: 1;
    }
    .hero > .absolute { z-index: 2; }

    /* ── Scroll Reveal ── */
    .reveal {
        opacity: 1;
        transform: translateY(0);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 0;
            transform: translateY(24px);
        }
        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* ── Card Hover ── */
    .card {
        will-change: transform;
    }

    /* ── Custom Scrollbar ── */
    ::-webkit-scrollbar { width: 8px; }
    ::-webkit-scrollbar-track { background: #fdf8ef; }
    ::-webkit-scrollbar-thumb { background: #d4933f; border-radius: 4px; }
    ::-webkit-scrollbar-thumb:hover { background: #c93d1e; }

    /* ── Selection ── */
    ::selection { background: rgba(224, 82, 46, 0.2); color: #1a2744; }

    /* ── Form Focus ── */
    input:focus, select:focus, textarea:focus {
        outline: none;
    }

    /* ── Mobile Responsive ── */
    @media (max-width: 767px) {
        .hero h1 {
            font-size: 2.75rem;
        }
    }

    @media (min-width: 768px) {
        .hero h1 {
            font-size: 4rem;
        }
    }

    @media (min-width: 1024px) {
        .hero h1 {
            font-size: 4.5rem;
        }
    }

    /* ── Animation Delays ── */
    .reveal:nth-child(1) { transition-delay: 0.05s; }
    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.15s; }
    .reveal:nth-child(4) { transition-delay: 0.2s; }
    .reveal:nth-child(5) { transition-delay: 0.25s; }