:root {
    --bg: #ffffff;
    --text: #0b0f14;
    --muted: #5b6675;
    --line: rgba(11,15,20,.10);
    --surface: #f6f7f9;
    --surface-2: #ffffff;
    --accent: #6b5cff;
    --shadow: 0 18px 55px rgba(11,15,20,.08);
    --radius: 18px;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
    color: var(--text);
    letter-spacing: -0.01em;
    background: radial-gradient(900px 500px at -10% 20%, rgba(107,92,255,.10), transparent 60%), radial-gradient(900px 500px at 110% 80%, rgba(39,199,167,.08), transparent 60%), #ffffff;
}

a {
    color: inherit;
}

.container {
    max-width: 1120px;
}

.navbar {
    padding-top: 16px !important;
    padding-bottom: 16px !important;
}

.navbar-brand {
    letter-spacing: -0.02em;
}

.nav-link {
    color: rgba(11,15,20,.72) !important;
    font-weight: 500;
}

    .nav-link:hover {
        color: rgba(11,15,20,.95) !important;
    }

main {
    padding-top: 18px;
    padding-bottom: 140px !important;
}

.footer {
    position: static !important;
}

    .footer .container {
        padding-top: 22px;
        padding-bottom: 22px;
        color: rgba(11,15,20,.55);
    }

h1, h2, h3 {
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(36px, 5vw, 64px);
    line-height: 1.02;
    margin: 0;
}

h2 {
    font-size: clamp(24px, 3vw, 38px);
    margin: 0;
}

p {
    margin: 0;
}

.btn-primary, .btn-secondary, .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 650;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #8d7cff);
    color: white;
    box-shadow: var(--shadow);
}

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

.btn-secondary {
    background: var(--surface);
    border-color: var(--line);
    color: var(--text);
}

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

.card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-2);
}

/* HERO */
.hero-wrap {
    margin-top: 10px;
    border: 1px solid var(--line);
    border-radius: 28px;
    overflow: hidden;
    background: radial-gradient(1200px 500px at 15% 10%, rgba(107,92,255,.18), transparent 60%), radial-gradient(900px 400px at 75% 40%, rgba(39,199,167,.14), transparent 60%), #fff;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 26px;
    padding: 46px;
    align-items: center;
}

.pill {
    display: inline-flex;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.8);
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 600;
    color: rgba(11,15,20,.72);
    font-size: 13px;
}

.hero-title {
    margin-top: 16px;
}

.hero-sub {
    margin-top: 18px;
    font-size: 18px;
    color: var(--muted);
    max-width: 60ch;
    line-height: 1.45;
}

.hero-actions {
    margin-top: 26px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-btn {
    padding: 14px 20px;
}

.hero-metrics {
    margin-top: 28px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.metric {
    border: 1px solid var(--line);
    background: rgba(255,255,255,.8);
    border-radius: 16px;
    padding: 14px 16px;
}

.metric-k {
    font-weight: 800;
}

.metric-v {
    color: var(--muted);
    font-size: 14px;
    margin-top: 4px;
}

.hero-media {
    height: 100%;
}

.hero-photo {
    height: 420px;
    border-radius: 22px;
    border: 1px solid var(--line);
    background: url('/images/hero.jpg') center/cover no-repeat, linear-gradient(135deg, rgba(11,15,20,.10), rgba(11,15,20,.02));
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,15,20,.00), rgba(11,15,20,.30));
    display: flex;
    align-items: flex-end;
    padding: 18px;
}

.hero-card {
    width: 100%;
    background: rgba(255,255,255,.86);
    border: 1px solid rgba(255,255,255,.55);
    border-radius: 18px;
    padding: 14px 16px;
}

.hero-card-title {
    font-weight: 900;
}

.hero-card-text {
    color: var(--muted);
    font-size: 14px;
    margin-top: 4px;
}

/* SECTIONS */
.section {
    margin-top: 46px;
}

    .section.soft {
        margin-top: 46px;
        border: 1px solid var(--line);
        background: var(--surface);
        border-radius: 26px;
        padding: 28px;
    }

.section-head p {
    margin-top: 10px;
    color: var(--muted);
    max-width: 80ch;
}

.cards {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.muted {
    color: var(--muted);
    margin-top: 10px;
    line-height: 1.45;
}

.steps {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.step {
    display: flex;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
    background: rgba(255,255,255,.75);
}

.step-n {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
}

.step-t {
    font-weight: 900;
}

/* Mobile */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        padding: 26px;
    }

    .hero-photo {
        height: 320px;
    }
}

/* ===== Background with center canvas (premium) ===== */
body {
    position: relative;
}

    /* Stronger side background */
    body::before {
        content: "";
        position: fixed;
        inset: 0;
        z-index: -2;
        background: radial-gradient(1000px 700px at 10% 15%, rgba(107,92,255,.22), transparent 60%), radial-gradient(900px 650px at 90% 70%, rgba(39,199,167,.16), transparent 60%), radial-gradient(700px 500px at 85% 10%, rgba(107,92,255,.10), transparent 60%), #ffffff;
    }

    /* Center �canvas� strip so the content feels framed, not floating */
    body::after {
        content: "";
        position: fixed;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: min(1180px, calc(100vw - 32px));
        height: 100%;
        z-index: -1;
        background: rgba(255,255,255,.88);
        border-left: 1px solid rgba(11,15,20,.06);
        border-right: 1px solid rgba(11,15,20,.06);
    }

/* ===== Courses listing ===== */
.course-cards {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 400px));
    gap: 18px;
}

.course-card {
    border: 1px solid var(--line);
    border-radius: 22px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 18px 55px rgba(11,15,20,.06);
    transition: transform .14s ease, box-shadow .14s ease;
}

    .course-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 26px 75px rgba(11,15,20,.10);
    }

.course-card-img {
    height: 180px;
    background: #f2f3f6 center/cover no-repeat;
}

.course-card-body {
    padding: 18px;
}

.course-card-title {
    font-weight: 900;
    font-size: 18px;
    line-height: 1.15;
}

.course-card-sub {
    color: var(--muted);
    margin-top: 8px;
}

.course-card-actions {
    display: flex;
    gap: 10px;
    margin-top: 14px;
    flex-wrap: wrap;
}

/* ===== Course details hero ===== */
.course-hero {
    margin-top: 14px;
    border-radius: 28px;
    overflow: hidden;
    background: radial-gradient(1200px 600px at 10% 20%, rgba(107,92,255,.26), transparent 55%), radial-gradient(900px 500px at 70% 30%, rgba(39,199,167,.16), transparent 60%), #0b0f14;
    color: #fff;
    border: 1px solid rgba(255,255,255,.08);
}

.course-hero-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 36px;
}

.course-back {
    display: inline-flex;
    color: rgba(255,255,255,.80);
    text-decoration: none;
    font-weight: 650;
}

    .course-back:hover {
        color: #fff;
    }

.course-hero-grid {
    margin-top: 18px;
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 22px;
    align-items: start;
}

.course-pill {
    display: inline-flex;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(255,255,255,.06);
    font-weight: 650;
    color: rgba(255,255,255,.86);
    font-size: 13px;
}

.course-title {
    margin-top: 14px;
    font-size: clamp(34px, 4.6vw, 56px);
    line-height: 1.02;
}

.course-meta {
    margin-top: 18px;
    border-top: 1px solid rgba(255,255,255,.12);
    padding-top: 16px;
    display: grid;
    gap: 10px;
}

.course-meta-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 10px;
    align-items: center;
}

    .course-meta-row .k {
        color: rgba(255,255,255,.65);
    }

    .course-meta-row .v {
        color: rgba(255,255,255,.92);
        font-weight: 650;
    }

.course-cta {
    margin-top: 18px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.course-note {
    margin-top: 12px;
    color: rgba(255,255,255,.68);
}

.course-hero-media {
    height: 360px;
    border-radius: 22px;
    border: 1px solid rgba(255,255,255,.12);
    background: #111 center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

.course-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,15,20,.05), rgba(11,15,20,.55));
    display: flex;
    align-items: flex-end;
    padding: 14px;
}

.course-hero-card {
    width: 100%;
    background: rgba(255,255,255,.10);
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 18px;
    padding: 12px 14px;
    backdrop-filter: blur(8px);
}

.course-hero-card-title {
    font-weight: 900;
}

.course-hero-card-text {
    margin-top: 4px;
    color: rgba(255,255,255,.78);
}

/* ===== Course content ===== */
.course-content-grid {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.h2tight {
    margin: 0;
    font-size: 22px;
}

.nice-list {
    margin: 12px 0 0 0;
    padding-left: 18px;
    color: var(--muted);
    line-height: 1.5;
}

    .nice-list li {
        margin: 6px 0;
    }

.instructor-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 16px;
    align-items: start;
}

.instructor-photo {
    height: 320px;
    border-radius: 22px;
    border: 1px solid var(--line);
    background: #f2f3f6 center/cover no-repeat;
}

.instructor-name {
    font-weight: 900;
    font-size: 20px;
    margin-top: 8px;
}

.instructor-no-photo {
    grid-template-columns: 1fr;
}

.instructor-badges {
    margin-top: 14px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge-pill {
    display: inline-flex;
    padding: 7px 10px;
    border-radius: 999px;
    border: 1px solid rgba(11,15,20,.10);
    background: rgba(255,255,255,.80);
    font-weight: 650;
    font-size: 13px;
}

/* ===== Carousel ===== */
.hero-carousel {
    width: 100vw;
    position: relative;
    left: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    height: clamp(340px, 65vh, 640px);
    overflow: hidden;
    margin-top: -18px;
    margin-bottom: 32px;
}

.carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.6s cubic-bezier(.4,0,.2,1);
    will-change: transform;
}

.carousel-slide {
    min-width: 100%;
    height: 100%;
    background: #111 center/cover no-repeat;
    flex-shrink: 0;
}

.carousel-dots {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 2;
}

.carousel-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: rgba(255,255,255,.45);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background .2s, width .2s;
}

.carousel-dot.active {
    background: #fff;
    width: 22px;
}

/* Mobile */
@media (max-width: 992px) {
    .course-hero-inner {
        padding: 22px;
    }

    .course-hero-grid {
        grid-template-columns: 1fr;
    }

    .course-hero-media {
        height: 280px;
    }

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

    .instructor-photo {
        height: 260px;
    }
}

@media (max-width: 768px) {
    .course-content-grid {
        grid-template-columns: 1fr;
    }

    .hero-carousel {
        height: clamp(220px, 40vh, 340px);
    }
}

/* ===== FAQ ===== */
.faq-list {
    margin-top: 28px;
    display: grid;
    gap: 14px;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,.92);
    overflow: hidden;
    transition: box-shadow .15s ease, transform .12s ease;
}

    .faq-item:hover {
        box-shadow: 0 14px 34px rgba(11,15,20,.06);
    }

.faq-question {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 20px 22px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
    cursor: pointer;
    position: relative;
}

    .faq-question::after {
        content: "+";
        position: absolute;
        right: 22px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 24px;
        font-weight: 400;
        color: var(--muted);
    }

.faq-item.open .faq-question::after {
    content: "�";
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease, padding .25s ease;
    padding: 0 22px;
}

.faq-item.open .faq-answer {
    max-height: 220px;
    padding: 0 22px 20px 22px;
}

.faq-answer p {
    color: var(--muted);
    line-height: 1.55;
}

/* ===== FAQ ===== */
.faq-list {
    margin-top: 28px;
    display: grid;
    gap: 14px;
}

.faq-item {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,.95);
    overflow: hidden;
    transition: box-shadow .15s ease;
}

    .faq-item:hover {
        box-shadow: 0 14px 34px rgba(11,15,20,.06);
    }

.faq-question {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 20px 22px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
    cursor: pointer;
    position: relative;
}

    .faq-question::after {
        content: "+";
        position: absolute;
        right: 22px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 24px;
        font-weight: 400;
        color: var(--muted);
    }

.faq-item.open .faq-question::after {
    content: "�";
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .25s ease, padding .25s ease;
    padding: 0 22px;
}

.faq-item.open .faq-answer {
    max-height: 220px;
    padding: 0 22px 20px 22px;
}

.faq-answer p {
    color: var(--muted);
    line-height: 1.55;
}

/* ===== Footer ===== */
.footer-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.footer-follow {
    font-weight: 700;
    color: var(--text);
    margin-right: 6px;
}

.footer-link {
    color: var(--muted);
    font-weight: 500;
}

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

.social-link {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    text-decoration: none;
    transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease;
}

    .social-link svg {
        width: 18px;
        height: 18px;
    }

    .social-link.active:hover {
        transform: translateY(-1px);
        box-shadow: 0 12px 26px rgba(11,15,20,.08);
    }

    .social-link.disabled {
        opacity: .38;
        cursor: default;
    }

/* ===== Jobs ===== */
.jobs-hero {
    margin-top: 14px;
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: radial-gradient(1200px 500px at 15% 10%, rgba(107,92,255,.18), transparent 60%), radial-gradient(900px 400px at 75% 40%, rgba(39,199,167,.14), transparent 60%), #fff;
}

.jobs-hero-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 22px;
    padding: 40px;
    align-items: start;
}

.jobs-hero-card {
    border: 1px solid var(--line);
    background: rgba(255,255,255,.82);
    border-radius: 22px;
    padding: 22px;
    box-shadow: 0 18px 40px rgba(11,15,20,.05);
}

@media (max-width: 992px) {
    .jobs-hero-grid {
        grid-template-columns: 1fr;
        padding: 24px;
    }

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