@import url("https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css");
@import url("https://cdnjs.cloudflare.com/ajax/libs/animate.css/4.1.1/animate.min.css");
@import url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.css");

:root {
    --bg: #060610;
    --surface: #101522;
    --surface-soft: #151c35;
    --surface-soft2: #172040;
    --border: rgba(255, 255, 255, .08);
    --text: #e5e9ff;
    --muted: #8fa4c2;
    --blue: #4f9cf9;
    --green: #34d399;
    --purple: #a855f7;
    --orange: #f97316;
    --radius: 20px;
    --shadow: 0 18px 50px rgba(0, 0, 0, .26);
    --shadow-soft: 0 12px 30px rgba(0, 0, 0, .18);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: radial-gradient(circle at top, #1d2a4d 0%, #060610 45%, #02040c 100%);
    color: var(--text);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button,
/* ─── NOISE OVERLAY ─── */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 1000;
    pointer-events: none;
    opacity: .035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 256px;
}

/* ─── AURORA BG ─── */
.aurora {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.aurora-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: drift 18s ease-in-out infinite alternate;
}

.ab1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 156, 249, .18), transparent 70%);
    top: -200px;
    left: -150px;
    animation-delay: 0s;
}

.ab2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, .14), transparent 70%);
    top: 30%;
    right: -180px;
    animation-delay: -6s;
}

.ab3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(34, 211, 238, .10), transparent 70%);
    bottom: -100px;
    left: 40%;
    animation-delay: -12s;
}

@keyframes drift {
    0% {
        transform: translate(0, 0) scale(1)
    }

    50% {
        transform: translate(30px, -20px) scale(1.05)
    }

    100% {
        transform: translate(-20px, 30px) scale(.95)
    }
}

/* ─── HERO ─── */
.hero {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 0;
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 48px 60px;
}

.hero-l {
    padding-right: 48px;
}

.hero-r {
    display: flex;
    justify-content: center;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(79, 156, 249, .1);
    border: 1px solid rgba(79, 156, 249, .22);
    border-radius: 100px;
    padding: 5px 14px;
    margin-bottom: 24px;
    font-size: 11px;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: 1.2px;
    text-transform: uppercase;
    animation: up .6s ease both;
}

.tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--blue);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1)
    }

    50% {
        opacity: .3;
        transform: scale(.6)
    }
}

.hero h1 {
    font-size: clamp(44px, 5.5vw, 76px);
    font-weight: 800;
    line-height: 1.04;
    letter-spacing: -2.5px;
    color: #fff;
    margin-bottom: 6px;
    animation: up .6s .08s ease both;
}

.hero-italic {
    font-family: var(--serif);
    font-size: clamp(44px, 5.5vw, 76px);
    font-style: italic;
    font-weight: 400;
    letter-spacing: -1px;
    color: var(--blue);
    line-height: 1.04;
    display: block;
    margin-bottom: 20px;
    animation: up .6s .12s ease both;
}

.hero-desc {
    font-size: 16px;
    color: var(--muted);
    line-height: 1.8;
    max-width: 440px;
    margin-bottom: 32px;
    animation: up .6s .18s ease both;
}

.hero-desc strong {
    color: var(--text);
}

.hero-btns {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    animation: up .6s .24s ease both;
}

.btn-p {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 12px 22px;
    border-radius: 9px;
    font-weight: 700;
    font-size: 13px;
    background: var(--blue);
    color: #fff;
    text-decoration: none;
    transition: all .25s;
    font-family: var(--sans);
}

.btn-p:hover {
    background: #6aabfa;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 156, 249, .35);
}

.btn-g {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 12px 22px;
    border-radius: 9px;
    font-weight: 600;
    font-size: 13px;
    background: var(--s1);
    color: #fff;
    text-decoration: none;
    border: 1px solid var(--bd);
    transition: all .25s;
    font-family: var(--sans);
}

.btn-g:hover {
    background: var(--s2);
    transform: translateY(-2px);
}

.hero-nums {
    display: flex;
    gap: 28px;
    margin-top: 40px;
    animation: up .6s .32s ease both;
}

.hn {
    text-align: left;
}

.hn-v {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
}

.hn-l {
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .8px;
    margin-top: 2px;
}

@keyframes up {
    from {
        opacity: 0;
        transform: translateY(22px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1rem;
    color: #fff;
}

.nav-brand span {
    color: var(--blue);
}

.nav-links {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-link {
    font-size: .92rem;
    color: var(--muted);
    padding: 10px 12px;
    border-radius: 12px;
    transition: all .22s;
}

.nav-link:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 16px;
    text-transform: none;
    transition: transform .22s, background .22s, border-color .22s;
    color: #fff;
}

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

.btn-primary {
    background: var(--blue);
    border: 1px solid transparent;
}

.btn-secondary {
    background: rgba(255, 255, 255, .08);
    color: #fff;
    border: 1px solid var(--border);
}

.btn-g {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    padding: 12px 18px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .06);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .12);
    transition: transform .22s, background .22s, border-color .22s;
}

.btn-g:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, .12);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, .12);
}

.main {
    max-width: 1180px;
    margin: 0 auto;
    padding: 110px 24px 60px;
}

.page-hero {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 34px;
    align-items: center;
    min-height: calc(100vh - 110px);
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 999px;
    background: rgba(79, 156, 249, .12);
    color: var(--blue);
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .16em;
}

.hero-tag span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--blue);
}

.hero-title {
    font-size: clamp(3rem, 5vw, 5rem);
    line-height: 1.02;
    letter-spacing: -1px;
    margin: 24px 0 18px;
    color: #fff;
}

.hero-copy {
    max-width: 620px;
}

.hero-text {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--muted);
    max-width: 580px;
    margin-bottom: 28px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 34px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 22px;
    box-shadow: var(--shadow-soft);
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
}

.stat-label {
    font-size: .8rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .12em;
    margin-top: 6px;
}

.section {
    padding: 80px 0;
}

.section-head {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 680px;
}

.section-kicker {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .18em;
    color: var(--blue);
}

.section-title {
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    line-height: 1.05;
    color: #fff;
}

.section-copy {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--muted);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 42px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 30px;
    box-shadow: var(--shadow-soft);
    transition: transform .25s, border-color .25s;
}

.card:hover {
    transform: translateY(-3px);
    border-color: rgba(79, 156, 249, .18);
}

.course-card {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.course-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.course-tag {
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--blue);
    letter-spacing: .16em;
}

.course-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}

.course-copy {
    font-size: .95rem;
    line-height: 1.8;
    color: var(--muted);
}

.label-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.label-pill {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .07);
    border: 1px solid var(--border);
    font-size: .8rem;
    color: var(--muted);
}

.course-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.course-meta span {
    display: block;
    font-size: .78rem;
    color: var(--muted);
}

.course-meta .value {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.course-actions {
    margin-top: 10px;
    display: flex;
    gap: 12px;
}

.form-card {
    max-width: 520px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow-soft);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.input-group label {
    font-size: .88rem;
    color: var(--muted);
    font-weight: 600;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, .04);
    color: #fff;
    outline: none;
    transition: border .22s;
}

.input-group input:focus {
    border-color: var(--blue);
}

.form-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .9rem;
    color: var(--muted);
}

.feature-list {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(255, 255, 255, .03);
}

.feature-icon {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    background: rgba(79, 156, 249, .12);
    display: grid;
    place-items: center;
    color: var(--blue);
    font-size: 1.1rem;
}

.feature-copy {
    color: var(--muted);
    line-height: 1.85;
    font-size: .95rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 26px;
    margin-top: 30px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-bottom: 28px;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 24px;
}

.metric-card h3 {
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 8px;
}

.metric-card p {
    color: var(--muted);
    font-size: .95rem;
    line-height: 1.7;
}

.progress-bar {
    height: 10px;
    background: rgba(255, 255, 255, .06);
    border-radius: 999px;
    overflow: hidden;
    margin-top: 12px;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--blue), var(--purple));
}

.card-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 18px;
}

.card-table th,
.card-table td {
    padding: 16px 12px;
    text-align: left;
    font-size: .92rem;
    color: var(--muted);
}

.card-table th {
    color: #fff;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.card-table tr {
    border-bottom: 1px solid rgba(255, 255, 255, .06);
}

.card-table tr:last-child {
    border-bottom: none;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .07);
    color: var(--muted);
    font-size: .78rem;
}

.footer {
    padding: 30px 24px;
    background: rgba(6, 8, 20, .85);
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    max-width: 1180px;
    margin: 0 auto;
}

.footer-copy {
    font-size: .88rem;
    color: var(--muted);
}

.footer-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--muted);
    font-size: .9rem;
}

@media(max-width:1024px) {
    .page-hero {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media(max-width:680px) {
    nav {
        padding: 0 18px;
    }

    .main {
        padding-top: 90px;
    }

    .stats-grid,
    .grid-4,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.6rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .form-foot {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        gap: 8px;
    }
}