@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    --bg: #080a0f;
    --panel: #10131b;
    --panel-2: #151923;
    --line: rgba(255,255,255,.10);

    --text: #f4f6f8;
    --muted: #a5adba;

    --lime: #b8ff4b;
    --blue: #61a6ff;
    --purple: #9d8cff;

    --radius: 22px;
    --container: 1180px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Manrope', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

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

button {
    font: inherit;
}

.container {
    width: min(100% - 40px, var(--container));
    margin-inline: auto;
}

/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;

    background: rgba(8,10,15,.82);
    backdrop-filter: blur(18px);

    border-bottom: 1px solid var(--line);
}

.nav-container {
    min-height: 76px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -.04em;
}

.logo span {
    color: var(--lime);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--muted);
    font-size: .92rem;
    font-weight: 600;

    transition:
        color .2s ease,
        transform .2s ease;
}

.nav-links a:hover {
    color: var(--text);
    transform: translateY(-1px);
}

.menu-btn {
    display: none;

    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--text);

    width: 44px;
    height: 44px;

    border-radius: 12px;
    cursor: pointer;
}

/* HERO */

.hero {
    position: relative;
    min-height: 720px;

    display: flex;
    align-items: center;

    overflow: hidden;
}

.hero::before {
    content: '';

    position: absolute;
    width: 600px;
    height: 600px;

    top: -180px;
    right: -150px;

    background: rgba(184,255,75,.08);

    filter: blur(100px);
    border-radius: 50%;

    pointer-events: none;
}

.hero::after {
    content: '';

    position: absolute;
    width: 500px;
    height: 500px;

    left: -200px;
    bottom: -250px;

    background: rgba(97,166,255,.07);

    filter: blur(100px);
    border-radius: 50%;

    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;

    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 80px;

    align-items: center;
}

.eyebrow {
    display: inline-block;

    font-family: 'DM Mono', monospace;
    font-size: .72rem;
    letter-spacing: .16em;

    color: var(--lime);

    margin-bottom: 18px;
}

.hero h1 {
    max-width: 760px;

    font-family: 'Space Grotesk', sans-serif;

    font-size: clamp(3.2rem, 7vw, 6.2rem);
    line-height: .95;
    letter-spacing: -.065em;
}

.hero h1 span {
    color: var(--lime);
}

.hero-text > p {
    max-width: 650px;

    color: var(--muted);

    font-size: 1.08rem;

    margin-top: 28px;
}

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

    margin-top: 34px;
}

/* BUTTONS */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 50px;
    padding: 0 22px;

    border-radius: 12px;

    font-weight: 800;
    font-size: .9rem;

    transition:
        transform .2s ease,
        box-shadow .2s ease,
        background .2s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--lime);
    color: #071006;

    box-shadow: 0 10px 35px rgba(184,255,75,.12);
}

.btn-primary:hover {
    box-shadow: 0 14px 45px rgba(184,255,75,.22);
}

.btn-secondary {
    border: 1px solid var(--line);
    background: rgba(255,255,255,.025);
    color: var(--text);
}

/* HERO CARD */

.hero-card {
    background:
        linear-gradient(
            145deg,
            rgba(255,255,255,.06),
            rgba(255,255,255,.015)
        );

    border: 1px solid var(--line);

    border-radius: 28px;

    padding: 32px;

    box-shadow:
        0 30px 100px rgba(0,0,0,.35);

    transform: rotate(1deg);
}

.hero-card-top {
    display: flex;
    justify-content: space-between;

    color: var(--muted);

    font-family: 'DM Mono', monospace;
    font-size: .68rem;

    margin-bottom: 55px;
}

.hero-card-top span:last-child {
    color: var(--lime);
}

.hero-card h3 {
    font-family: 'Space Grotesk', sans-serif;

    font-size: 2.2rem;
    line-height: 1.05;

    letter-spacing: -.045em;

    margin-bottom: 34px;
}

.hero-card h3 span {
    color: var(--lime);
}

.learning-list {
    display: grid;
    gap: 10px;
}

.learning-list div {
    display: flex;
    align-items: center;
    gap: 18px;

    padding: 15px;

    border: 1px solid var(--line);
    border-radius: 13px;

    background: rgba(255,255,255,.02);
}

.learning-list strong {
    color: var(--lime);

    font-family: 'DM Mono', monospace;
    font-size: .75rem;
}

.learning-list span {
    color: #dce1e7;
    font-weight: 600;
}

/* SECTIONS */

.section {
    padding: 110px 0;
}

.dark-section {
    background: #0b0e14;

    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-heading {
    max-width: 720px;

    margin-bottom: 50px;
}

.section-heading h2,
.two-column h2,
.cta-box h2 {
    font-family: 'Space Grotesk', sans-serif;

    font-size: clamp(2.3rem, 5vw, 4.3rem);
    line-height: 1;

    letter-spacing: -.055em;
}

.section-heading p {
    color: var(--muted);

    margin-top: 18px;
}

/* CATEGORY GRID */

.category-grid {
    display: grid;

    grid-template-columns: repeat(3, 1fr);

    gap: 16px;
}

.category-card {
    min-height: 230px;

    padding: 28px;

    border: 1px solid var(--line);
    border-radius: var(--radius);

    background: var(--panel);

    transition:
        transform .25s ease,
        border-color .25s ease,
        background .25s ease;
}

.category-card:hover {
    transform: translateY(-6px);

    border-color: rgba(184,255,75,.35);

    background: var(--panel-2);
}

.category-card > span {
    font-family: 'DM Mono', monospace;

    color: var(--lime);
    font-size: .72rem;
}

.category-card h3 {
    font-family: 'Space Grotesk', sans-serif;

    font-size: 1.55rem;

    margin-top: 55px;
}

.category-card p {
    color: var(--muted);

    font-size: .92rem;

    margin-top: 8px;
}

/* TWO COLUMN */

.two-column {
    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: 90px;

    align-items: start;
}

.two-column p {
    color: var(--muted);

    font-size: 1rem;

    margin-top: 18px;
}

.two-column .large-text {
    color: var(--text);

    font-size: 1.35rem;
    line-height: 1.5;
}

/* CTA */

.cta-section {
    padding: 100px 0;
}

.cta-box {
    display: flex;

    align-items: center;
    justify-content: space-between;

    gap: 40px;

    padding: 55px;

    border: 1px solid var(--line);
    border-radius: 28px;

    background:
        radial-gradient(
            circle at 90% 20%,
            rgba(184,255,75,.10),
            transparent 35%
        ),
        var(--panel);
}

.cta-box h2 {
    max-width: 650px;
}

/* CONTACT */

.contact-email {
    display: inline-block;

    color: var(--lime);

    font-family: 'DM Mono', monospace;

    font-size: 1rem;

    padding-bottom: 8px;

    border-bottom: 1px solid rgba(184,255,75,.4);
}

/* FOOTER */

.site-footer {
    border-top: 1px solid var(--line);

    padding: 35px 0;

    color: var(--muted);
}

.footer-content {
    display: flex;

    align-items: center;
    justify-content: space-between;

    gap: 30px;
}

.footer-content strong {
    color: var(--text);

    font-family: 'Space Grotesk', sans-serif;
}

.footer-content p {
    font-size: .85rem;
    margin-top: 3px;
}

/* RESPONSIVE */

@media (max-width: 900px) {

    .hero-content {
        grid-template-columns: 1fr;
        gap: 55px;
    }

    .hero {
        padding: 90px 0;
    }

    .hero-card {
        max-width: 650px;
    }

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

    .two-column {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

@media (max-width: 700px) {

    .container {
        width: min(100% - 28px, var(--container));
    }

    .nav-container {
        min-height: 68px;
    }

    .menu-btn {
        display: block;
    }

    .nav-links {
        display: none;

        position: absolute;

        top: 68px;
        left: 14px;
        right: 14px;

        padding: 18px;

        flex-direction: column;
        align-items: stretch;

        background: rgba(16,19,27,.98);

        border: 1px solid var(--line);
        border-radius: 18px;

        box-shadow: 0 20px 60px rgba(0,0,0,.4);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        padding: 11px 8px;
    }

    .hero {
        min-height: auto;

        padding: 80px 0;
    }

    .hero h1 {
        font-size: clamp(3rem, 16vw, 4.8rem);
    }

    .hero-text > p {
        font-size: 1rem;
    }

    .hero-card {
        padding: 24px;

        transform: none;
    }

    .hero-card h3 {
        font-size: 1.8rem;
    }

    .section {
        padding: 80px 0;
    }

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

    .category-card {
        min-height: 200px;
    }

    .section-heading h2,
    .two-column h2,
    .cta-box h2 {
        font-size: 2.6rem;
    }

    .cta-box {
        padding: 30px;
    }

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

/* =========================================================
   AUTH / REGISTRATION
   ========================================================= */

.auth-section {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    padding: 80px 20px;
}

.auth-container {
    width: min(1100px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 70px;
    align-items: center;
}

.auth-intro {
    max-width: 520px;
}

.auth-intro h1 {
    margin: 20px 0;
    font-size: clamp(42px, 5vw, 68px);
    line-height: 1.02;
    letter-spacing: -2px;
}

.auth-intro h1 span {
    color: var(--lime);
}

.auth-intro > p {
    max-width: 500px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.auth-benefits {
    margin-top: 40px;
    display: grid;
    gap: 20px;
}

.auth-benefit {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.auth-benefit > span {
    color: var(--lime);
    font-family: var(--mono);
    font-size: 13px;
    padding-top: 3px;
}

.auth-benefit strong {
    display: block;
    margin-bottom: 5px;
}

.auth-benefit p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.auth-card {
    padding: 42px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, .25);
}

.auth-card-header {
    margin-bottom: 30px;
}

.auth-card-header h2 {
    margin: 10px 0;
    font-size: 32px;
}

.auth-card-header p {
    margin: 0;
    color: var(--muted);
}

.auth-card-header a {
    color: var(--lime);
    text-decoration: none;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    box-sizing: border-box;
    padding: 14px 15px;
    background: rgba(255, 255, 255, .035);
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 10px;
    outline: none;
    font: inherit;
    transition: .2s ease;
}

.form-group input::placeholder {
    color: #69717d;
}

.form-group input:focus {
    border-color: var(--lime);
    box-shadow: 0 0 0 3px rgba(184, 255, 75, .08);
}

.auth-submit {
    width: 100%;
    justify-content: center;
    margin-top: 5px;
}

.auth-terms {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.6;
}

.auth-alert {
    padding: 15px 17px;
    margin-bottom: 22px;
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.6;
}

.auth-alert-error {
    border: 1px solid rgba(255, 90, 90, .25);
    background: rgba(255, 90, 90, .06);
}

.auth-alert-success {
    border: 1px solid rgba(184, 255, 75, .25);
    background: rgba(184, 255, 75, .05);
}

.auth-alert p {
    color: var(--muted);
    margin: 8px 0 18px;
}


/* Mobile */

@media (max-width: 800px) {

    .auth-section {
        padding: 50px 18px;
    }

    .auth-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .auth-intro {
        max-width: none;
    }

    .auth-intro h1 {
        font-size: 44px;
    }

    .auth-card {
        padding: 28px 22px;
    }

}


@media (max-width: 520px) {

    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .auth-intro h1 {
        font-size: 38px;
    }

    .auth-card {
        padding: 24px 18px;
    }

}