:root {
    --bg-1: #f6fbf8;
    --bg-2: #e0f2ee;
    --ink: #0f172a;
    --panel: rgba(255, 255, 255, 0.78);
    --panel-strong: rgba(255, 255, 255, 0.9);
    --shadow: 0 28px 80px rgba(15, 23, 42, 0.14);
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --slate-900: #0f172a;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(20, 184, 166, 0.18), transparent 32%),
        radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.14), transparent 28%),
        linear-gradient(160deg, var(--bg-1), var(--bg-2));
    padding-top: 64px;
    min-height: 100vh;
}

.page-orb {
    position: fixed;
    border-radius: 999px;
    filter: blur(14px);
    opacity: 0.55;
    pointer-events: none;
}

.page-orb-a {
    top: 5.5rem;
    left: 3.5rem;
    width: 14rem;
    height: 14rem;
    background: rgba(20, 184, 166, 0.16);
}

.page-orb-b {
    right: 5rem;
    bottom: 4rem;
    width: 18rem;
    height: 18rem;
    background: rgba(14, 165, 233, 0.14);
}

.site-nav {
    background: rgba(255, 255, 255, 0.78);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
    backdrop-filter: blur(18px);
    box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--teal-700);
    text-decoration: none;
}

.brand-mark img {
    border: 1px solid rgba(15, 118, 110, 0.18);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}

.mobile-menu-btn {
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: #475569;
    background: rgba(255, 255, 255, 0.8);
}

.mobile-menu-btn:hover {
    background: rgba(241, 245, 249, 0.95);
}

.nav-link {
    color: #334155;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--teal-700);
}

.nav-action {
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.nav-action:hover {
    transform: translateY(-1px);
}

.nav-action-secondary {
    border: 1px solid rgba(15, 118, 110, 0.28);
    color: var(--teal-700);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

.nav-action-secondary:hover {
    background: rgba(240, 253, 250, 0.95);
}

.nav-action-primary {
    background: linear-gradient(120deg, #0f766e, #0d9488);
    box-shadow: 0 14px 28px rgba(15, 118, 110, 0.24);
}

.nav-action-primary:hover {
    opacity: 0.95;
}

.mobile-menu {
    border-top: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px);
}

.mobile-link {
    color: #334155;
}

.mobile-link:hover {
    color: var(--teal-700);
    background: rgba(240, 253, 250, 0.8);
}

.hero-section {
    position: relative;
    isolation: isolate;
    background:
        linear-gradient(145deg, rgba(15, 118, 110, 0.7), rgba(15, 23, 42, 0.68)),
        url('../../gif.gif') center / cover no-repeat;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 22%);
    background-size: 34px 34px, 34px 34px, auto;
    pointer-events: none;
    z-index: -1;
}

.capsule {
    border: 1px solid rgba(255, 255, 255, 0.24);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.16);
}

.hero-cta {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-cta:hover {
    transform: translateY(-1px);
}

.hero-cta-primary {
    background: linear-gradient(120deg, #0f172a, #1e293b);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.25);
}

.hero-cta-secondary {
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.hero-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.16);
}

.hero-feature {
    background: rgba(30, 41, 59, 0.34);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(14px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.surface-panel {
    background: var(--panel);
    border: 1px solid rgba(255, 255, 255, 0.66);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

#about .line {
    width: 64px;
    height: 4px;
    background: linear-gradient(90deg, #0d9488, #0ea5e9);
    margin: 1rem 0;
    border-radius: 999px;
}

.course-card {
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 42px rgba(15, 23, 42, 0.2);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.course-card:hover {
    transform: translateY(-9px);
    box-shadow: 0 26px 58px rgba(15, 23, 42, 0.28);
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 16px 30px rgba(15, 23, 42, 0.28);
}

.map-container {
    height: 350px;
    background: var(--panel-strong);
    border: 1px solid rgba(255, 255, 255, 0.66);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

#qualificationsList > div,
#batchesList > div {
    border-radius: 0.9rem;
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}

.batch-card {
    border-left: 4px solid #0d9488;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.batch-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0.7rem 1.2rem rgba(15, 23, 42, 0.12) !important;
}

.site-footer {
    background: linear-gradient(130deg, rgba(15, 23, 42, 0.94), rgba(15, 118, 110, 0.92));
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.social-icon {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background-color: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    transition: all 0.25s ease;
}

.social-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    width: 38px;
    background-color: rgba(255, 255, 255, 0.14);
    border-radius: 50%;
}

.social-icon:hover {
    color: #fff;
    background: rgba(24, 119, 242, 0.85);
    transform: translateY(-2px);
}

.social-icon:hover i {
    background-color: rgba(255, 255, 255, 0.22);
}

.back-to-top {
    position: fixed;
    visibility: hidden;
    opacity: 0;
    right: 15px;
    bottom: 15px;
    z-index: 996;
    background: linear-gradient(130deg, #0f766e, #0d9488);
    width: 42px;
    height: 42px;
    border-radius: 999px;
    transition: all 0.3s;
    color: #fff;
    border: 0;
}

.back-to-top:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 20px rgba(15, 118, 110, 0.3);
}

.back-to-top.active {
    visibility: visible;
    opacity: 1;
}

.modal-shell {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.72);
    box-shadow: 0 30px 70px rgba(15, 23, 42, 0.24);
    backdrop-filter: blur(20px);
}

@media (max-width: 768px) {
    .page-orb-a {
        left: 0.5rem;
        width: 11rem;
        height: 11rem;
    }

    .page-orb-b {
        right: 0.5rem;
        width: 13rem;
        height: 13rem;
    }

    .hero-section {
        background-position: center;
    }

    .social-icon span {
        display: none;
    }

    .map-container {
        height: 300px;
    }
}

@media (max-width: 640px) {
    .hero-section h1 {
        font-size: 2rem;
        line-height: 1.12;
    }

    .hero-feature {
        padding: 0.9rem;
    }

    .icon-circle {
        width: 68px;
        height: 68px;
    }

    .surface-panel {
        border-radius: 1.1rem;
    }
}