:root {
    --bg: #0a0c10;
    --surface: #12151c;
    --surface-2: #181c26;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .14);
    --text: #e9ecf2;
    --muted: #9aa3b2;
    --brand: #ff5a1f;
    --brand-2: #ff9a3d;
    --teal: #2de2b5;
    --blue: #3b82f6;
    --radius: 18px;
    --display: "Space Grotesk", "Inter", system-ui, sans-serif;
    --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
    --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--body);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
picture { display: contents; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.1; margin: 0 0 .5em; letter-spacing: -.02em; font-weight: 600; }
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); letter-spacing: -.035em; font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3.8vw, 3rem); }
h3 { font-size: 1.15rem; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: inherit; }
strong { color: var(--text); font-weight: 600; }
.muted { color: var(--muted); font-size: 1.08rem; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Background */
.bg-grid {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, #000 30%, transparent 100%);
    opacity: .6;
}
.glow { position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; z-index: -1; }
.glow-a { width: 520px; height: 520px; background: rgba(255, 90, 31, .28); top: -160px; right: 4%; animation: drift 14s ease-in-out infinite alternate; }
.glow-b { width: 420px; height: 420px; background: rgba(45, 226, 181, .14); top: 200px; left: -140px; animation: drift 18s ease-in-out infinite alternate-reverse; }
.glow-c { width: 600px; height: 600px; background: rgba(255, 90, 31, .18); top: 10%; left: 30%; }
@keyframes drift { to { transform: translate(-60px, 40px) scale(1.1); } }

/* Buttons */
.btn {
    position: relative; overflow: hidden;
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    background: linear-gradient(135deg, var(--brand-2), var(--brand));
    color: #fff; border: 0; border-radius: 12px;
    padding: 15px 24px; font: 600 1rem var(--body); text-decoration: none; white-space: nowrap;
    cursor: pointer; box-shadow: 0 8px 30px rgba(255, 90, 31, .35), inset 0 1px 0 rgba(255,255,255,.25);
    transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
    transform: translateX(-120%); transition: transform .7s var(--ease);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(255, 90, 31, .45), inset 0 1px 0 rgba(255,255,255,.25); }
.btn:hover::after { transform: translateX(120%); }
.btn:disabled { opacity: .6; cursor: default; transform: none; }
.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-small { padding: 9px 16px; font-size: .9rem; border-radius: 10px; box-shadow: 0 6px 20px rgba(255, 90, 31, .3); }
.btn-block { width: 100%; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: rgba(10, 12, 16, .65); backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 1.2rem; letter-spacing: -.02em; }
.brand img { border-radius: 9px; }
.brand-small { font-size: 1rem; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-links a:not(.btn):hover { color: var(--text); }

/* Hero */
.hero { position: relative; padding: 84px 0 110px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.pill {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: .85rem; font-weight: 500; color: var(--text);
    background: rgba(255,255,255,.05); border: 1px solid var(--line-strong);
    padding: 7px 14px 7px 12px; border-radius: 999px; margin-bottom: 26px;
}
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 0 rgba(45, 226, 181, .7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(45, 226, 181, 0); } 100% { box-shadow: 0 0 0 0 rgba(45, 226, 181, 0); } }
.grad {
    background: linear-gradient(100deg, var(--brand-2) 0%, var(--brand) 45%, #ff3d6e 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 32em; }
.hero-form { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; max-width: 540px; }
.hero-form input[type=email] { flex: 1 1 240px; }
.hero-form .form-status { flex-basis: 100%; }
.stats { list-style: none; display: flex; flex-wrap: wrap; gap: 10px 28px; padding: 0; margin: 26px 0 0; color: var(--muted); font-size: .92rem; }
.stats b { color: var(--text); font-family: var(--display); font-weight: 600; }

input[type=email], input[type=text], select, textarea {
    width: 100%; font: 1rem var(--body); color: var(--text);
    padding: 14px 16px; border: 1px solid var(--line-strong); border-radius: 12px;
    background: rgba(255,255,255,.04); transition: border-color .2s, background .2s, box-shadow .2s;
}
input::placeholder, textarea::placeholder { color: #6c7483; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 52%, calc(100% - 15px) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
select option { background: var(--surface); color: var(--text); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); background: rgba(255,255,255,.06); box-shadow: 0 0 0 4px rgba(255, 90, 31, .18); }
.form-status { margin: 4px 0 0; font-size: .95rem; font-weight: 500; min-height: 1.4em; }
.form-status.ok { color: var(--teal); }
.form-status.err { color: #ff6b6b; }
.hint { font-size: .85rem; color: var(--muted); }
.hp { position: absolute; left: -9999px; }

/* Hero visual: real photo + live code */
.hero-visual { position: relative; }
.bench { position: relative; padding-bottom: 56px; }
.hero-photo {
    position: relative; border-radius: 26px; overflow: hidden;
    border: 1px solid var(--line-strong);
    box-shadow: 0 40px 100px rgba(0,0,0,.55), 0 0 0 8px rgba(255,255,255,.02);
    transform: rotate(1.5deg);
}
.hero-photo img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; }
.led-flare {
    position: absolute; left: 70.5%; top: 36%; width: 46%; aspect-ratio: 1; translate: -50% -50%;
    background: radial-gradient(circle, rgba(255, 70, 40, .75) 0%, rgba(255, 70, 40, .25) 30%, transparent 62%);
    mix-blend-mode: screen; animation: blink 2s steps(1) infinite;
}
@keyframes blink { 0% { opacity: 1; } 50% { opacity: 0; } }
.code-card {
    position: absolute; left: -36px; bottom: 0; width: min(330px, 78%);
    background: rgba(18, 21, 28, .82); backdrop-filter: blur(16px);
    border: 1px solid var(--line-strong); border-radius: 16px;
    box-shadow: 0 30px 60px rgba(0,0,0,.5); overflow: hidden;
}
.code-head { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.code-head span { width: 10px; height: 10px; border-radius: 50%; background: #3a3f4b; }
.code-head span:first-child { background: #ff5f57; } .code-head span:nth-child(2) { background: #febc2e; } .code-head span:nth-child(3) { background: #28c840; }
.code-head em { margin-left: auto; font: 500 .75rem var(--mono); color: var(--muted); font-style: normal; }
.code-card pre { margin: 0; padding: 14px 16px; font: .85rem/1.7 var(--mono); color: #d6dae3; }
.code-card .line { display: block; margin-left: -16px; padding-left: 16px; border-left: 2px solid transparent; }
.l-on { animation: hl-on 2s steps(1) infinite; }
.l-wait1 { animation: hl-wait1 2s steps(1) infinite; }
.l-off { animation: hl-off 2s steps(1) infinite; }
.l-wait2 { animation: hl-wait2 2s steps(1) infinite; }
@keyframes hl-on { 0% { background: rgba(255,90,31,.16); border-color: var(--brand); } 8% { background: none; border-color: transparent; } }
@keyframes hl-wait1 { 0% { background: none; border-color: transparent; } 8% { background: rgba(255,90,31,.10); border-color: var(--brand); } 50% { background: none; border-color: transparent; } }
@keyframes hl-off { 0% { background: none; border-color: transparent; } 50% { background: rgba(59,130,246,.16); border-color: var(--blue); } 58% { background: none; border-color: transparent; } }
@keyframes hl-wait2 { 0% { background: none; border-color: transparent; } 58% { background: rgba(59,130,246,.10); border-color: var(--blue); } }
.k { color: #c792ea; } .f { color: #4fd1c5; } .n { color: #f6ad55; }

/* Sections */
.section { position: relative; padding: 110px 0; }
.section-tight { padding: 60px 0; }
.section-heading { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-heading p { color: var(--muted); font-size: 1.12rem; }
.kicker {
    display: inline-block; font: 600 .78rem var(--mono); letter-spacing: .12em; text-transform: uppercase;
    color: var(--brand-2); margin-bottom: 16px;
}

/* Problem bento */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tile {
    position: relative; padding: 30px; border-radius: var(--radius);
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--line); overflow: hidden;
    transition: transform .3s var(--ease), border-color .3s;
}
.tile::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(255, 90, 31, .12), transparent 40%);
    opacity: 0; transition: opacity .3s;
}
.tile:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.tile:hover::before { opacity: 1; }
.tile h3 em { font-style: normal; color: var(--brand-2); }
.tile p { color: var(--muted); margin: 0; }
.tile-icon {
    width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 22px;
    font: 700 1rem var(--display); color: var(--brand-2);
    background: rgba(255, 90, 31, .1); border: 1px solid rgba(255, 90, 31, .25);
}
.term { font: 500 .88em var(--mono); color: var(--brand-2); background: rgba(255, 90, 31, .1); padding: .1em .4em; border-radius: 6px; border-bottom: 1px dashed rgba(255, 154, 61, .6); }

/* Phones */
.phones { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; align-items: start; }
.phone-wrap { margin: 0; }
.phone-main { margin-top: -28px; }
.phone {
    max-width: 300px; margin: 0 auto; padding: 10px; border-radius: 44px;
    background: linear-gradient(145deg, #2a2f3a, #111318);
    box-shadow: 0 40px 80px rgba(0,0,0,.55), inset 0 0 0 1px rgba(255,255,255,.08);
    transition: transform .5s var(--ease);
}
.phone-wrap:hover .phone { transform: translateY(-8px) rotate(-.5deg); }
.screen {
    position: relative; height: 600px; border-radius: 35px; overflow: hidden;
    background: #fff; color: #1c1f25; font-family: var(--body); font-size: 13px;
    display: flex; flex-direction: column;
}
.s-top { background: #2196f3; color: #fff; font-weight: 600; font-size: 15px; padding: 38px 18px 14px; display: flex; gap: 14px; }
.s-progress { height: 4px; background: #e3e7ee; }
.s-progress span { display: block; height: 100%; background: #6750a4; }
.s-photo { aspect-ratio: 4 / 3; overflow: hidden; background: #eee; }
.s-photo-wide { aspect-ratio: 16 / 10; }
.s-photo img { width: 100%; height: 100%; object-fit: cover; }
.s-body { position: relative; padding: 14px 18px; flex: 1; overflow: hidden; }
.s-step { color: #6b7280; font-weight: 600; font-size: 11px; }
.screen h4 { font-family: var(--body); font-size: 19px; font-weight: 600; letter-spacing: -.01em; color: #2c3038; margin: 6px 0 8px; }
.s-body p { color: #5f6672; line-height: 1.55; margin: 0 0 10px; }
.s-parts { list-style: none; padding: 0; margin: 0; }
.s-parts li { display: flex; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px solid #eef0f4; }
.s-parts b { margin-left: auto; color: #2196f3; }
.chip { width: 22px; height: 22px; border-radius: 6px; }
.c-teal { background: #0b7d86; } .c-sand { background: #e6dfcd; } .c-red { background: #e0382b; } .c-tan { background: #6b8fd6; } .c-orange { background: linear-gradient(135deg, #e0382b 50%, #222 50%); }
.s-term { color: #6750a4; font-weight: 600; border-bottom: 1.5px dashed #6750a4; }
.s-term.is-open { background: #efe9fb; border-radius: 4px; padding: 0 2px; }
.s-tooltip {
    background: #2c3038; color: #e9ecf2; border-radius: 10px; padding: 10px 12px; font-size: 12px; line-height: 1.45;
    box-shadow: 0 10px 24px rgba(0,0,0,.25); opacity: 0; transform: translateY(6px); transition: opacity .5s var(--ease) 1s, transform .5s var(--ease) 1s;
}
.in .s-tooltip { opacity: 1; transform: none;
}
.s-tooltip b { display: block; color: #ffb48a; font-family: var(--mono); font-weight: 500; }
.s-code { margin: 0; background: #23252b; color: #e3e3e3; border-radius: 10px; padding: 12px; font: 11.5px/1.55 var(--mono); overflow: hidden; }
.s-copy { text-align: right; color: #6750a4; font-weight: 600; font-size: 12px; margin-top: 8px; }
.s-nav { display: flex; justify-content: space-between; padding: 12px 18px 22px; }
.s-nav span { padding: 8px 18px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.s-nav .ghost { background: #9e9e9e; color: #6750a4; opacity: .7; }
.s-nav .solid { background: #f3effa; color: #6750a4; box-shadow: 0 1px 3px rgba(0,0,0,.15); }
figcaption { text-align: center; color: var(--muted); max-width: 290px; margin: 26px auto 0; font-size: .95rem; }
figcaption b { color: var(--text); }

/* Photo strip */
.build { overflow: hidden; }
.strip { mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.strip-track { list-style: none; display: flex; gap: 20px; padding: 0; margin: 0; width: max-content; animation: marquee 60s linear infinite; }
.strip:hover .strip-track { animation-play-state: paused; }
.strip-track li { position: relative; width: 280px; flex: none; border-radius: 18px; overflow: hidden; border: 1px solid var(--line-strong); }
.strip-track img { width: 100%; aspect-ratio: 1; object-fit: cover; transition: transform .6s var(--ease); }
.strip-track li:hover img { transform: scale(1.05); }
.strip-track span {
    position: absolute; left: 10px; right: 10px; bottom: 10px; padding: 9px 12px; border-radius: 12px; font-size: .85rem;
    background: rgba(10, 12, 16, .72); backdrop-filter: blur(10px); color: var(--text);
}
.strip-track span b { color: var(--brand-2); font: 600 .75rem var(--mono); margin-right: 6px; text-transform: uppercase; letter-spacing: .05em; }
@keyframes marquee { to { transform: translateX(calc(-50% - 10px)); } }

/* Curriculum */
.tracks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.track {
    background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
    transition: border-color .3s, transform .3s var(--ease);
}
.track:hover { border-color: rgba(255, 90, 31, .4); transform: translateY(-3px); }
.track h3 { display: flex; align-items: baseline; gap: 10px; font-size: 1.02rem; margin-bottom: 14px; }
.track h3 span { font: 500 .75rem var(--mono); color: var(--brand-2); }
.track ul { list-style: none; padding: 0; margin: 0; }
.track li { position: relative; padding: 7px 0 7px 18px; color: var(--muted); font-size: .92rem; line-height: 1.4; }
.track li::before { content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; border-radius: 50%; border: 1.5px solid #4a5160; }
.track-capstone { background: linear-gradient(160deg, rgba(255, 90, 31, .22), rgba(255, 90, 31, .04) 60%), var(--surface); border-color: rgba(255, 90, 31, .4); }
.track-capstone li { color: var(--text); font-weight: 600; }
.track-capstone li::before { background: var(--brand); border-color: var(--brand); box-shadow: 0 0 10px var(--brand); }
.track-capstone p { color: var(--muted); font-size: .9rem; margin: 12px 0 0; }

.course-label { display: flex; align-items: center; gap: 12px; font: 600 1.2rem var(--display); margin: 0 0 18px; }
.course-label-next { margin-top: 48px; }
.course-tag { font: 600 .72rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: #fff; background: linear-gradient(135deg, var(--brand-2), var(--brand)); padding: 5px 10px; border-radius: 999px; }
.course-tag-next { background: rgba(45, 226, 181, .12); color: var(--teal); border: 1px solid rgba(45, 226, 181, .35); }
.roadmap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.road { padding: 24px; border-radius: var(--radius); border: 1px dashed var(--line-strong); background: rgba(255,255,255,.015); }
.road h3 { font-size: 1.02rem; }
.road p { color: var(--muted); font-size: .92rem; margin: 0; }

/* Journey */
.journey-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 64px; align-items: center; }
.journey-card { background: linear-gradient(180deg, var(--surface-2), var(--surface)); border: 1px solid var(--line-strong); border-radius: 24px; padding: 30px; box-shadow: 0 40px 80px rgba(0,0,0,.4); }
.journey-head { display: flex; justify-content: space-between; align-items: flex-end; }
.journey-head small { display: block; color: var(--muted); font-size: .8rem; }
.journey-head b { font-family: var(--display); font-size: 1.8rem; font-weight: 700; letter-spacing: -.02em; }
.journey-count { font: 500 .85rem var(--mono); color: var(--muted); }
.meter { height: 10px; border-radius: 10px; background: rgba(255,255,255,.07); margin: 18px 0 10px; overflow: hidden; }
.meter-fill { display: block; height: 100%; width: 0; border-radius: 10px; background: linear-gradient(90deg, var(--teal), #22c1ee); box-shadow: 0 0 18px rgba(45, 226, 181, .6); transition: width 1.6s var(--ease) .3s; }
.in .meter-fill { width: 80%; }
.journey-note { color: var(--muted); font-size: .92rem; }
.journey-note b { color: var(--teal); }
.levels { list-style: none; display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; padding: 0; margin: 22px 0; }
.levels li { text-align: center; font-size: .75rem; color: #6c7483; padding: 30px 0 0; position: relative; }
.levels li::before { content: ""; position: absolute; top: 4px; left: 50%; translate: -50% 0; width: 16px; height: 16px; border-radius: 50%; border: 2px solid #3a404c; background: var(--bg); }
.levels li.done { color: var(--text); }
.levels li.done::before { background: var(--teal); border-color: var(--teal); }
.levels li.current::before { box-shadow: 0 0 0 6px rgba(45, 226, 181, .2); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px 7px 8px; border-radius: 999px; background: rgba(255,255,255,.05); border: 1px solid var(--line-strong); font-size: .82rem; }
.badge i { font-style: normal; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: rgba(255, 154, 61, .18); }
.badge.locked { opacity: .45; }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 48px 24px; }
.feature-grid h3 { font-size: 1.05rem; }
.feature-grid p { color: var(--muted); font-size: .95rem; margin: 0; }

/* Join */
.join { overflow: hidden; }
.join-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 64px; align-items: center; }
.join-copy p { color: var(--muted); font-size: 1.1rem; }
.join-form {
    display: grid; gap: 18px; padding: 34px; border-radius: 24px;
    background: rgba(24, 28, 38, .7); backdrop-filter: blur(20px);
    border: 1px solid var(--line-strong); box-shadow: 0 40px 100px rgba(0,0,0,.5);
}
.join-form label { display: grid; gap: 8px; font-weight: 500; font-size: .9rem; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.join-form fieldset { border: 0; padding: 0; margin: 0; }
.join-form legend { font-weight: 500; font-size: .9rem; margin-bottom: 8px; padding: 0; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 5px; border-radius: 14px; background: rgba(255,255,255,.04); border: 1px solid var(--line-strong); }
.seg label { display: block; cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; text-align: center; padding: 9px 6px; border-radius: 10px; color: var(--muted); font-weight: 500; transition: background .2s, color .2s; }
.seg input:checked + span { background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff; }
.seg input:focus-visible + span { outline: 2px solid var(--brand-2); }
.optional { color: #6c7483; font-weight: 400; }
.join-form .hint { margin: 0; text-align: center; }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); padding: 22px 4px; }
summary { cursor: pointer; font: 600 1.08rem var(--display); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; flex: none; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--brand-2); font-size: 1.1rem; transition: transform .3s var(--ease); }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); margin: 14px 0 0; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 30px 0; }
.footer-row { display: flex; justify-content: space-between; align-items: center; }
.footer-row p { margin: 0; color: var(--muted); font-size: .9rem; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
    .meter-fill { width: 80%; }
    .s-tooltip { opacity: 1; transform: none; }
    .strip { overflow-x: auto; }
}

/* Responsive */
@media (max-width: 1020px) {
    .hero-grid, .join-grid, .journey-grid { grid-template-columns: 1fr; }
    .hero-visual { max-width: 560px; margin: 20px auto 0; width: 100%; }
    .code-card { left: -8px; }
    .tracks, .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .phones { grid-template-columns: 1fr; gap: 56px; }
    .phone-main { margin-top: 0; }
}
@media (max-width: 640px) {
    .nav-links a:not(.btn) { display: none; }
    .hero { padding: 48px 0 72px; }
    .section { padding: 76px 0; }
    .bento, .tracks, .feature-grid, .row-2, .roadmap { grid-template-columns: 1fr; }
    .hero-form .btn { width: 100%; }
    .code-card { width: 86%; left: 0; }
    .code-card pre { font-size: .78rem; }
    .join-form { padding: 22px; }
    .strip-track li { width: 220px; }
    .levels li { font-size: .68rem; }
}