:root {
    color-scheme: dark;

    --bg: #05070b;
    --bg-2: #080b12;

    --surface: rgba(13, 18, 27, 0.76);
    --surface-strong: rgba(17, 24, 36, 0.94);
    --surface-soft: rgba(255, 255, 255, 0.025);

    --text: #f7f9fc;
    --muted: #9aa6b7;
    --dim: #626d7f;

    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.15);

    --cyan: #71e7ff;
    --cyan-hot: #a4f2ff;
    --blue: #6eabff;
    --violet: #9d82ff;

    --orange: #ff873d;
    --orange-hot: #ffb27f;

    --good: #67e8a5;
    --danger: #ff765f;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --max: 1180px;

    --shadow:
        0 24px 80px rgba(0, 0, 0, 0.30);
}


/* =========================================================
   RESET / GLOBAL
   ========================================================= */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;

    background:
        radial-gradient(
            circle at 82% 4%,
            rgba(113, 231, 255, 0.11),
            transparent 25rem
        ),
        radial-gradient(
            circle at 8% 58%,
            rgba(255, 135, 61, 0.07),
            transparent 30rem
        ),
        linear-gradient(
            180deg,
            #05070b 0%,
            #070a12 48%,
            #05070b 100%
        );

    color: var(--text);

    font-family:
        "Segoe UI Variable Display",
        "Segoe UI Variable",
        "Segoe UI",
        -apple-system,
        BlinkMacSystemFont,
        Arial,
        sans-serif;

    font-synthesis: none;
    text-rendering: optimizeLegibility;

    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    line-height: 1.55;
}

body::before {
    content: "";

    position: fixed;
    inset: 0;

    z-index: -4;

    pointer-events: none;

    background-image:
        linear-gradient(
            rgba(255, 255, 255, 0.018) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.018) 1px,
            transparent 1px
        );

    background-size: 68px 68px;

    mask-image:
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.95),
            rgba(0, 0, 0, 0.35) 58%,
            transparent 92%
        );
}

body::after {
    content: "";

    position: fixed;
    inset: 0;

    z-index: -3;

    pointer-events: none;

    opacity: 0.13;

    background:
        repeating-linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.013) 0,
            rgba(255, 255, 255, 0.013) 1px,
            transparent 1px,
            transparent 4px
        );

    mask-image:
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.45),
            transparent 80%
        );
}

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

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

::selection {
    background: rgba(255, 135, 61, 0.30);
    color: var(--text);
}

:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 4px;
    border-radius: 4px;
}

h1,
h2,
h3 {
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}


/* =========================================================
   BACKGROUND ATMOSPHERE
   ========================================================= */

.background-grid {
    position: fixed;
    inset: 0;

    pointer-events: none;

    z-index: -3;

    opacity: 0.16;
}

.background-glow {
    position: fixed;

    pointer-events: none;

    z-index: -2;

    border-radius: 50%;

    filter: blur(120px);
}

.glow-blue {
    width: 650px;
    height: 650px;

    top: -340px;
    right: -180px;

    background: rgba(82, 190, 255, 0.13);
}

.glow-orange {
    width: 520px;
    height: 520px;

    top: 56%;
    left: -400px;

    background: rgba(255, 116, 45, 0.075);
}


/* =========================================================
   HEADER / BRAND
   ========================================================= */

.site-header {
    width: min(calc(100% - 48px), var(--max));
    height: 88px;

    margin: auto;

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

    position: relative;

    z-index: 10;

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

.brand {
    display: flex;
    align-items: center;

    gap: 7px;

    font-size: 0.71rem;
    font-weight: 760;

    letter-spacing: 0.135em;
}

.brand-main {
    color: var(--text);
}

.brand-divider {
    color: var(--dim);
}

.brand-human {
    color: var(--orange);

    text-shadow:
        0 0 22px rgba(255, 135, 61, 0.18);
}

.site-nav {
    display: flex;

    gap: 28px;

    color: var(--muted);

    font-size: 0.82rem;
}

.site-nav a {
    position: relative;

    transition:
        color 150ms ease;
}

.site-nav a::after {
    content: "";

    position: absolute;

    left: 0;
    right: 100%;

    bottom: -8px;

    height: 1px;

    background:
        linear-gradient(
            90deg,
            var(--cyan),
            var(--orange)
        );

    transition:
        right 180ms ease;
}

.site-nav a:hover {
    color: var(--text);
}

.site-nav a:hover::after {
    right: 0;
}


/* =========================================================
   HERO
   ========================================================= */

.hero {
    width: min(calc(100% - 48px), var(--max));

    min-height: 780px;

    margin: auto;

    padding: 102px 0 96px;

    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        minmax(440px, 1fr);

    gap: 64px;

    align-items: center;
}

.hero-content {
    position: relative;
}

.hero-status {
    display: flex;
    align-items: center;

    gap: 10px;

    margin-bottom: 30px;

    color: var(--muted);

    font-size: 0.66rem;
    font-weight: 730;

    letter-spacing: 0.16em;
}

.status-dot {
    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: var(--cyan);

    box-shadow:
        0 0 0 4px rgba(113, 231, 255, 0.035),
        0 0 20px rgba(113, 231, 255, 0.70);
}

.hero h1 {
    max-width: 960px;

    margin: 0;

    font-size:
        clamp(
            4rem,
            7vw,
            7.2rem
        );

    font-weight: 650;

    line-height: 0.88;

    letter-spacing: -0.072em;
}

.hero-gradient {
    display: block;

    color: transparent;

    background:
        linear-gradient(
            100deg,
            #8cf0ff 0%,
            #70b5ff 34%,
            #a48cff 63%,
            #ff9a56 100%
        );

    background-clip: text;
    -webkit-background-clip: text;

    filter:
        drop-shadow(
            0 0 26px
            rgba(113, 231, 255, 0.08)
        );
}

.hero-lead {
    max-width: 760px;

    margin: 44px 0 0;

    color: var(--text);

    font-size:
        clamp(
            1.25rem,
            2vw,
            1.65rem
        );

    font-weight: 470;

    line-height: 1.47;
}

.hero-support {
    max-width: 650px;

    margin: 18px 0 0;

    color: var(--muted);

    font-size: 1rem;
}

.hero-actions {
    display: flex;

    gap: 12px;

    margin-top: 36px;
}

.button-primary,
.button-secondary,
.primary-button {
    min-height: 49px;

    padding: 0 20px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    border-radius: var(--radius-sm);

    font-size: 0.86rem;
    font-weight: 690;

    transition:
        transform 170ms ease,
        border-color 170ms ease,
        box-shadow 170ms ease,
        background 170ms ease,
        color 170ms ease;
}

.button-primary,
.primary-button {
    gap: 28px;

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

    background:
        linear-gradient(
            100deg,
            var(--cyan),
            #9ef1ff
        );

    color: #031116;

    box-shadow:
        0 10px 35px
        rgba(113, 231, 255, 0.10);
}

.button-primary:hover,
.primary-button:hover {
    transform: translateY(-3px);

    background: var(--cyan-hot);

    box-shadow:
        0 16px 44px
        rgba(113, 231, 255, 0.15);
}

.button-secondary {
    border:
        1px solid var(--line-strong);

    background:
        rgba(255, 255, 255, 0.018);

    color: var(--muted);
}

.button-secondary:hover {
    transform: translateY(-3px);

    border-color:
        rgba(255, 255, 255, 0.28);

    background:
        rgba(255, 255, 255, 0.04);

    color: var(--text);
}

.hero-stats {
    margin-top: 78px;

    padding-top: 24px;

    display: flex;

    gap: 58px;

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

.hero-stats div {
    display: flex;
    flex-direction: column;
}

.hero-stats strong {
    font-size: 1.13rem;

    font-weight: 640;
}

.hero-stats span {
    margin-top: 3px;

    color: var(--dim);

    font-size: 0.75rem;
}


/* =========================================================
   HERO IMAGE — BRIGHT CENTER / SOFT EDGES
   ========================================================= */

.hero-media {
    width: 100%;
    height: 100%;

    display: flex;
    flex-direction: column;
    justify-content: center;

    position: relative;
}

.hero-image-frame {
    width: 100%;
    height: 560px;

    position: relative;

    overflow: hidden;

    border-radius: 22px;

    background: transparent;

    border:
        1px solid
        rgba(113, 231, 255, 0.08);

    box-shadow:
        0 35px 100px
        rgba(0, 0, 0, 0.32),

        0 0 65px
        rgba(113, 231, 255, 0.055);
}

.hero-image-frame img {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: cover;
    object-position: center center;

    opacity: 1;

    filter:
        saturate(1.08)
        contrast(1.04)
        brightness(1.02);

    -webkit-mask-image:
        radial-gradient(
            ellipse at center,
            #000 58%,
            rgba(0, 0, 0, 0.98) 70%,
            rgba(0, 0, 0, 0.82) 83%,
            rgba(0, 0, 0, 0.30) 95%,
            transparent 100%
        );

    mask-image:
        radial-gradient(
            ellipse at center,
            #000 58%,
            rgba(0, 0, 0, 0.98) 70%,
            rgba(0, 0, 0, 0.82) 83%,
            rgba(0, 0, 0, 0.30) 95%,
            transparent 100%
        );
}

.hero-image-frame::before {
    content: "";

    position: absolute;
    inset: 0;

    z-index: 2;

    pointer-events: none;

    background:
        radial-gradient(
            circle at 72% 20%,
            rgba(113, 231, 255, 0.04),
            transparent 40%
        ),
        radial-gradient(
            circle at 25% 80%,
            rgba(255, 135, 61, 0.035),
            transparent 38%
        );
}

.hero-image-frame::after {
    content: "";

    position: absolute;
    inset: 0;

    z-index: 3;

    pointer-events: none;

    border-radius: inherit;

    box-shadow:
        inset 0 0 30px
        rgba(5, 7, 11, 0.05);
}

.hero-image-caption {
    margin: 14px 0 0;

    color:
        rgba(151, 162, 179, 0.75);

    font-size: 0.58rem;
    font-weight: 720;

    letter-spacing: 0.19em;
}


/* =========================================================
   SHARED SECTIONS
   ========================================================= */

.lessons-section,
.mission-section,
.creator-section,
.future-section,
.big-picture-section {
    width:
        min(calc(100% - 48px), var(--max));

    margin: auto;

    padding: 126px 0;

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

    content-visibility: auto;

    contain-intrinsic-size:
        900px;
}

.section-label {
    margin:
        0 0 16px;

    color: var(--cyan);

    font-size: 0.66rem;

    font-weight: 760;

    letter-spacing: 0.18em;
}

.orange-label {
    color: var(--orange);
}

.section-intro {
    margin-bottom: 55px;

    display: flex;

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

    gap: 80px;
}

.section-intro h2,
.mission-content h2,
.creator-content h2,
.future-section h2,
.big-picture-intro h2 {
    margin: 0;

    font-size:
        clamp(
            2.8rem,
            5vw,
            4.8rem
        );

    font-weight: 620;

    line-height: 0.98;

    letter-spacing: -0.055em;
}

.section-intro > p {
    max-width: 390px;

    margin:
        0 0 5px;

    color: var(--muted);
}


/* =========================================================
   LESSON CARDS
   ========================================================= */

.lesson-grid {
    display: grid;

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

    gap: 14px;
}

.lesson-card {
    min-height: 480px;

    padding: 24px;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

    position: relative;

    isolation: isolate;

    overflow: hidden;

    border:
        1px solid
        rgba(255, 255, 255, 0.085);

    border-radius: 14px;

    background:
        linear-gradient(
            145deg,
            rgba(20, 29, 43, 0.78),
            rgba(8, 12, 19, 0.88)
        );

    box-shadow:
        inset 0 1px 0
        rgba(255, 255, 255, 0.025);

    transition:
        transform 190ms
        cubic-bezier(
            0.2,
            0.8,
            0.2,
            1
        ),
        border-color 190ms ease,
        box-shadow 190ms ease,
        background 190ms ease;
}

.lesson-card::before {
    content: "";

    position: absolute;

    inset: -1px;

    z-index: -2;

    border-radius: inherit;

    background:
        linear-gradient(
            135deg,
            rgba(113, 231, 255, 0.20),
            transparent 28%,
            transparent 68%,
            rgba(157, 130, 255, 0.12)
        );

    opacity: 0;

    transition:
        opacity 190ms ease;
}

.lesson-card::after {
    content: "";

    position: absolute;

    width: 280px;
    height: 280px;

    top: -190px;
    right: -150px;

    z-index: -1;

    border-radius: 50%;

    background:
        rgba(113, 231, 255, 0.14);

    filter:
        blur(68px);

    opacity: 0;

    transition:
        opacity 190ms ease;
}

.lesson-card-orange::after {
    background:
        rgba(255, 135, 61, 0.16);
}

.lesson-card:hover {
    transform:
        translateY(-8px);

    border-color:
        rgba(113, 231, 255, 0.32);

    background:
        linear-gradient(
            145deg,
            rgba(23, 34, 51, 0.94),
            rgba(10, 15, 24, 0.96)
        );

    box-shadow:
        0 30px 85px
        rgba(0, 0, 0, 0.30),

        0 0 45px
        rgba(113, 231, 255, 0.035);
}

.lesson-card-orange:hover {
    border-color:
        rgba(255, 135, 61, 0.38);

    box-shadow:
        0 30px 85px
        rgba(0, 0, 0, 0.30),

        0 0 50px
        rgba(255, 135, 61, 0.045);
}

.lesson-card:hover::before,
.lesson-card:hover::after {
    opacity: 1;
}

.card-top,
.card-footer {
    display: flex;

    justify-content: space-between;

    align-items: center;
}

.module-number {
    color: var(--dim);

    font-size: 0.74rem;
}

.module-tag {
    color: var(--cyan);

    font-size: 0.60rem;

    letter-spacing: 0.15em;
}

.orange-text {
    color: var(--orange);
}

.card-content {
    margin:
        auto 0;
}

.module-symbol {
    width: 48px;
    height: 48px;

    margin-bottom: 29px;

    display: grid;
    place-items: center;

    position: relative;

    border:
        1px solid
        rgba(113, 231, 255, 0.24);

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            rgba(113, 231, 255, 0.075),
            rgba(113, 231, 255, 0.012)
        );

    box-shadow:
        0 0 32px
        rgba(113, 231, 255, 0.04);
}

.module-symbol::after {
    content: "";

    position: absolute;

    inset: -7px;

    border:
        1px solid
        rgba(255, 255, 255, 0.035);

    border-radius: 50%;
}

.password-symbol span {
    width: 12px;
    height: 12px;

    border-radius: 50%;

    background: var(--cyan);

    box-shadow:
        0 0 0 5px
        rgba(113, 231, 255, 0.035),

        0 0 18px
        rgba(113, 231, 255, 0.58);
}

.vault-symbol {
    border-color:
        rgba(255, 135, 61, 0.30);

    background:
        radial-gradient(
            circle,
            rgba(255, 135, 61, 0.075),
            rgba(255, 135, 61, 0.012)
        );
}

.vault-symbol span {
    width: 15px;
    height: 15px;

    border:
        2px solid var(--orange);

    transform:
        rotate(45deg);
}

.mfa-symbol span {
    width: 18px;
    height: 18px;

    border:
        2px solid var(--blue);

    border-radius: 50%;

    box-shadow:
        inset 0 0 0 4px
        rgba(8, 11, 18, 1),

        0 0 16px
        rgba(110, 171, 255, 0.26);
}

.lesson-card h3 {
    margin: 0;

    font-size: 2.1rem;

    font-weight: 620;

    letter-spacing:
        -0.045em;
}

.module-hook {
    margin:
        7px 0 20px;

    color: var(--text);

    font-size: 1.03rem;

    font-weight: 540;
}

.module-description {
    max-width: 315px;

    margin: 0;

    color: var(--muted);

    font-size: 0.90rem;
}

.card-footer {
    padding-top: 20px;

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

    color: var(--muted);

    font-size: 0.76rem;
}

.card-arrow {
    color: var(--cyan);

    font-size: 1rem;

    transition:
        transform 170ms ease;
}

.lesson-card:hover .card-arrow {
    transform:
        translate(3px, -3px);
}


/* =========================================================
   WHY IDENTITY / MISSION
   ========================================================= */

.mission-section {
    display: block;
}

.mission-content {
    max-width: 100%;
}

.mission-content h2 {
    max-width: 900px;
}

.mission-content h2 span {
    display: block;

    color: var(--muted);
}

.mission-description {
    max-width: 720px;

    margin:
        34px 0 58px;

    color: var(--muted);

    font-size: 1.04rem;
}

.mission-comparison {
    display: grid;

    grid-template-columns:
        1fr 1fr;

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

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

.comparison-block {
    padding:
        29px 0;
}

.comparison-block:first-child {
    padding-right: 35px;

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

.comparison-block:last-child {
    padding-left: 35px;
}

.comparison-heading {
    color: var(--dim);

    font-size: 0.62rem;

    font-weight: 710;

    letter-spacing: 0.15em;
}

.comparison-human .comparison-heading {
    color: var(--orange);
}

.mission-comparison ul {
    margin:
        20px 0 0;

    padding: 0;

    list-style: none;
}

.mission-comparison li {
    padding:
        5px 0;

    font-size: 1.03rem;
}


/* =========================================================
   BIG PICTURE
   ========================================================= */

.big-picture-intro {
    margin-bottom: 48px;

    display: flex;

    justify-content: space-between;

    align-items: end;

    gap: 80px;
}

.big-picture-intro h2 {
    max-width: 750px;
}

.big-picture-intro h2 span {
    display: block;

    color: var(--orange-hot);
}

.big-picture-intro > p {
    max-width: 390px;

    margin:
        0 0 5px;

    color: var(--muted);
}


/* =========================================================
   BIG PICTURE IMAGE — BRIGHT CENTER / SOFT EDGES
   ========================================================= */

.big-picture-art {
    margin: 0;

    position: relative;

    overflow: hidden;

    border-radius: 20px;

    background: transparent;

    border:
        1px solid
        rgba(255, 255, 255, 0.055);

    box-shadow:
        0 35px 105px
        rgba(0, 0, 0, 0.28),

        0 0 70px
        rgba(255, 135, 61, 0.035);
}

.big-picture-art img {
    width: 100%;
    height: auto;

    display: block;

    opacity: 1;

    filter:
        saturate(1.06)
        contrast(1.04)
        brightness(1.02);

    -webkit-mask-image:
        radial-gradient(
            ellipse at center,
            #000 62%,
            rgba(0, 0, 0, 0.98) 72%,
            rgba(0, 0, 0, 0.82) 84%,
            rgba(0, 0, 0, 0.28) 96%,
            transparent 100%
        );

    mask-image:
        radial-gradient(
            ellipse at center,
            #000 62%,
            rgba(0, 0, 0, 0.98) 72%,
            rgba(0, 0, 0, 0.82) 84%,
            rgba(0, 0, 0, 0.28) 96%,
            transparent 100%
        );
}

.big-picture-art::before {
    content: "";

    position: absolute;
    inset: 0;

    z-index: 2;

    pointer-events: none;

    background:
        linear-gradient(
            110deg,
            rgba(113, 231, 255, 0.02),
            transparent 40%,
            rgba(255, 135, 61, 0.02)
        );
}

.big-picture-art::after {
    content: "";

    position: absolute;
    inset: 0;

    z-index: 3;

    pointer-events: none;

    border-radius: inherit;

    box-shadow:
        inset 0 0 28px
        rgba(5, 7, 11, 0.04);
}


/* =========================================================
   CREATOR / PERSONAL BRAND
   ========================================================= */

.creator-section {
    display: grid;

    grid-template-columns:
        minmax(280px, 0.72fr)
        minmax(0, 1.28fr);

    gap: 90px;

    align-items: center;
}

.creator-photo-column {
    display: flex;

    justify-content: center;
}

.portrait-frame {
    width:
        min(100%, 360px);

    aspect-ratio:
        4 / 5;

    position: relative;
}

.portrait-frame::before {
    content: "";

    position: absolute;

    inset: -12px;

    z-index: -1;

    border:
        1px solid
        rgba(255, 135, 61, 0.13);

    border-radius: 18px;

    background:
        linear-gradient(
            145deg,
            rgba(255, 135, 61, 0.04),
            transparent 52%,
            rgba(113, 231, 255, 0.025)
        );

    box-shadow:
        0 0 60px rgba(255, 135, 61, 0.035);
}

.portrait-photo {
    width: 100%;
    height: 100%;

    position: relative;

    overflow: hidden;

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

    border-radius:
        var(--radius-md);

    background:
        rgba(255, 255, 255, 0.02);

    box-shadow:
        0 30px 90px
        rgba(0, 0, 0, 0.35),

        0 0 60px
        rgba(255, 135, 61, 0.04);
}

.portrait-photo img {
    width: 100%;
    height: 100%;

    object-fit: cover;

    object-position:
        center top;

    filter:
        contrast(1.03)
        saturate(1.03)
        brightness(1.02);
}

.portrait-photo::after {
    content: "";

    position: absolute;
    inset: 0;

    pointer-events: none;

    background:
        linear-gradient(
            to bottom,
            transparent 62%,
            rgba(5, 7, 11, 0.22)
        );

    box-shadow:
        inset 0 0 40px
        rgba(5, 7, 11, 0.08);
}

.portrait-accent {
    position: absolute;

    width: 115px;
    height: 3px;

    right: -17px;
    bottom: 28px;

    background:
        linear-gradient(
            90deg,
            var(--orange),
            rgba(255, 135, 61, 0.18),
            transparent
        );

    box-shadow:
        0 0 20px
        rgba(255, 135, 61, 0.24);
}

.creator-content h2 span {
    display: block;

    color: var(--orange-hot);
}

.creator-lead {
    max-width: 720px;

    margin:
        34px 0 17px;

    font-size: 1.12rem;

    line-height: 1.65;
}

.creator-copy {
    max-width: 700px;

    margin: 0;

    color: var(--muted);
}

.creator-meta {
    margin:
        42px 0;

    padding:
        23px 0;

    display: grid;

    grid-template-columns:
        repeat(2, 1fr);

    gap: 25px;

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

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

.creator-meta div {
    display: flex;

    flex-direction: column;
}

.creator-meta-label {
    margin-bottom: 6px;

    color: var(--dim);

    font-size: 0.59rem;

    letter-spacing: 0.16em;
}

.creator-meta strong {
    font-size: 0.88rem;

    font-weight: 580;
}


/* =========================================================
   CREATOR BUTTONS
   ========================================================= */

.creator-actions {
    display: flex;

    align-items: center;

    gap: 12px;

    flex-wrap: wrap;
}

.linkedin-button {
    width: fit-content;

    min-height: 49px;

    padding:
        0 17px;

    display: inline-flex;

    align-items: center;

    gap: 14px;

    border:
        1px solid
        rgba(255, 135, 61, 0.32);

    border-radius:
        var(--radius-sm);

    background:
        linear-gradient(
            135deg,
            rgba(255, 135, 61, 0.07),
            rgba(255, 135, 61, 0.025)
        );

    transition:
        transform 170ms ease,
        border-color 170ms ease,
        box-shadow 170ms ease,
        background 170ms ease;
}

.linkedin-button:hover {
    transform:
        translateY(-3px);

    border-color:
        rgba(255, 135, 61, 0.62);

    background:
        rgba(255, 135, 61, 0.09);

    box-shadow:
        0 16px 40px
        rgba(255, 135, 61, 0.08);
}

.linkedin-icon {
    width: 25px;
    height: 25px;

    display: grid;
    place-items: center;

    border-radius: 4px;

    background:
        var(--orange);

    color:
        #140a04;

    font-size: 0.76rem;

    font-weight: 820;
}

.linkedin-button > span:nth-child(2) {
    font-size: 0.86rem;

    font-weight: 580;
}

.linkedin-arrow {
    color: var(--orange);
}

.contact-button {
    min-height: 49px;

    padding:
        0 20px;

    display: inline-flex;

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

    gap: 24px;

    border:
        1px solid
        rgba(113, 231, 255, 0.28);

    border-radius:
        var(--radius-sm);

    background:
        linear-gradient(
            100deg,
            rgba(113, 231, 255, 0.07),
            rgba(110, 171, 255, 0.035)
        );

    color: var(--text);

    font-size: 0.86rem;

    font-weight: 650;

    transition:
        transform 170ms ease,
        border-color 170ms ease,
        background 170ms ease,
        box-shadow 170ms ease;
}

.contact-button span {
    color: var(--cyan);
}

.contact-button:hover {
    transform:
        translateY(-3px);

    border-color:
        rgba(113, 231, 255, 0.58);

    background:
        rgba(113, 231, 255, 0.08);

    box-shadow:
        0 16px 45px
        rgba(113, 231, 255, 0.07);
}


/* =========================================================
   FUTURE TOPICS
   ========================================================= */

.future-section h2 {
    max-width: 820px;
}

.future-section h2 span {
    display: block;

    color: var(--muted);
}

.future-topics {
    margin-top: 52px;

    display: flex;

    flex-wrap: wrap;

    gap: 10px;
}

.future-topics span {
    padding:
        10px 14px;

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

    border-radius: 999px;

    background:
        rgba(255, 255, 255, 0.014);

    color: var(--muted);

    font-size: 0.64rem;

    letter-spacing: 0.11em;

    transition:
        color 160ms ease,
        border-color 160ms ease,
        transform 160ms ease,
        background 160ms ease;
}

.future-topics span:hover {
    transform:
        translateY(-2px);

    color: var(--text);

    border-color:
        rgba(113, 231, 255, 0.28);

    background:
        rgba(113, 231, 255, 0.025);
}


/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
    width:
        min(calc(100% - 48px), var(--max));

    min-height: 130px;

    margin: auto;

    display: flex;

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

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

.site-footer p {
    color: var(--dim);

    font-size: 0.74rem;
}


/* =========================================================
   LESSON PAGE COMPATIBILITY
   ========================================================= */

.lesson-page {
    min-height: 100vh;
}

.lesson-header {
    width:
        min(calc(100% - 48px), 1050px);

    height: 88px;

    margin: auto;

    display: flex;

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

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

.lesson-exit {
    color: var(--muted);

    font-size: 0.77rem;
}

.lesson-exit:hover {
    color: var(--text);
}

.lesson-main {
    width:
        min(calc(100% - 48px), 1050px);

    min-height:
        calc(100vh - 88px);

    margin: auto;

    padding:
        80px 0;

    display: flex;

    align-items: center;
}

.lesson-content {
    max-width: 880px;
}

.lesson-category {
    margin:
        0 0 25px;

    color: var(--cyan);

    font-size: 0.66rem;

    font-weight: 740;

    letter-spacing: 0.18em;
}

.lesson-content h1 {
    margin: 0;

    font-size:
        clamp(
            3.4rem,
            8vw,
            6.8rem
        );

    font-weight: 620;

    line-height: 0.90;

    letter-spacing: -0.062em;
}

.lesson-intro {
    max-width: 700px;

    margin:
        40px 0 18px;

    color: var(--muted);

    font-size: 1.15rem;

    line-height: 1.65;
}

.lesson-meta {
    margin-bottom: 38px;

    color: var(--dim);

    font-size: 0.76rem;
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 1000px) {

    .hero {
        grid-template-columns:
            minmax(0, 1fr)
            minmax(360px, 0.9fr);

        gap: 44px;
    }

    .hero-image-frame {
        height: 500px;
    }

}


@media (max-width: 900px) {

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

        gap: 55px;
    }

    .hero-media {
        width: 100%;
    }

    .hero-image-frame {
        width: 100%;

        height: auto;

        aspect-ratio:
            16 / 10;
    }

    .hero-image-frame img {
        object-fit: cover;

        object-position:
            center center;
    }

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

    .lesson-card {
        min-height: 360px;
    }

    .section-intro,
    .big-picture-intro {
        display: block;
    }

    .section-intro > p,
    .big-picture-intro > p {
        margin-top: 24px;
    }

    .creator-section {
        grid-template-columns: 1fr;

        gap: 58px;
    }

    .portrait-frame {
        width: 300px;
    }

}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 600px) {

    .site-header,
    .lesson-header {
        width:
            calc(100% - 32px);
    }

    .site-nav {
        display: none;
    }

    .brand {
        font-size: 0.59rem;
    }

    .hero,
    .lessons-section,
    .mission-section,
    .creator-section,
    .future-section,
    .big-picture-section,
    .site-footer,
    .lesson-main {
        width:
            calc(100% - 32px);
    }

    .hero {
        min-height: auto;

        padding:
            94px 0 74px;
    }

    .hero h1 {
        font-size:
            clamp(
                3.5rem,
                15vw,
                5rem
            );
    }

    .hero-lead {
        margin-top: 34px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .button-primary,
    .button-secondary {
        width: 100%;
    }

    .hero-stats {
        margin-top: 64px;

        gap: 20px;

        justify-content: space-between;
    }

    .hero-image-frame {
        aspect-ratio:
            4 / 3;

        border-radius: 14px;
    }

    .hero-image-frame img {
        object-position:
            center center;
    }

    .lessons-section,
    .mission-section,
    .creator-section,
    .future-section,
    .big-picture-section {
        padding:
            86px 0;
    }

    .mission-comparison {
        grid-template-columns: 1fr;
    }

    .comparison-block:first-child {
        padding-right: 0;

        border-right: none;

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

    .comparison-block:last-child {
        padding-left: 0;
    }

    .portrait-frame {
        width: 240px;
    }

    .creator-meta {
        grid-template-columns: 1fr;
    }

    .creator-actions {
        flex-direction: column;

        align-items: stretch;
    }

    .creator-actions .linkedin-button,
    .creator-actions .contact-button {
        width: 100%;

        justify-content: center;
    }

    .big-picture-art {
        border-radius: 14px;
    }

    .site-footer {
        min-height: 155px;

        display: block;

        padding:
            43px 0;
    }

    .footer-brand {
        margin-bottom: 18px;
    }

}


/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration:
            0.01ms !important;

        animation-duration:
            0.01ms !important;

        animation-iteration-count:
            1 !important;
    }

}