/* =============================================
           NAV — DESKTOP (fixed, glass pill)
        ============================================= */
        .nav-main {
            position: fixed;
            top: 1.5rem;
            left: 1.5rem;
            right: 1.5rem;
            height: 85px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 4rem;
            z-index: 2000;
            border-radius: 30px;
            border: 1px solid var(--border-glass);
        }

        .nav-logo {
            font-size: 2rem;
            margin: 0;
            flex-shrink: 0;
        }

        /* Desktop links */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2.5rem;
        }

        /* Hamburger button — hidden on desktop */
        .nav-hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 6px;
            z-index: 2000;
            position: relative;
        }

        .nav-hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        /* Animated X state */
        .nav-hamburger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-hamburger.is-open span:nth-child(2) {
            opacity: 0;
        }

        .nav-hamburger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile drawer — full screen overlay */
        .nav-drawer {
            visibility: hidden;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, visibility 0.3s ease;

            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 1500;
            background: rgba(6, 7, 10, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: block;
            padding-top: 25vh;
            overflow-y: auto;
        }

        .nav-drawer.is-open {
            visibility: visible;
            opacity: 1;
            pointer-events: all;
        }

        /* Links dentro del drawer */
        .nav-drawer .nav-item-mobile {
            display: block;
            width: 100%;
            max-width: 340px;
            margin: 0 auto;
            font-size: 1.3rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: #fff;
            text-decoration: none;
            padding: 1.1rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            transition: color 0.2s;
        }

        .nav-drawer .nav-item-mobile:hover {
            color: var(--primary, #00f2fe);
        }

        .nav-drawer .btn-futuristic {
            margin-top: 2rem;
            width: 100%;
            max-width: 340px;
            text-align: center;
            padding: 1rem 2rem;
            font-size: 1rem;
        }