/* Chris Guitar Tuto - website v3 (22 Sep 2026). Two themes: Nuit (default) and Jour. */
:root{
  --bg:#0b0b0c; --bg-2:#101012; --surface:#151517; --surface-2:#1c1c1f;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.15);
  --text:#f8f6f4; --muted:#d0ccd3; --dim:#a39ea8;
  --amber:#ffb43d; --amber-ink:#ffb43d; --on-amber:#17120a;
  --glow:rgba(255,180,61,.16); --phone:#000; --ok:#5fd68a; --bad:#ff7a8a;
  --display:"Anton","Arial Narrow",Impact,sans-serif;
  --body:"Manrope","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --maxw:1180px; --pad:clamp(16px,4vw,40px); --r:18px;
  color-scheme:dark;
}
html[data-theme="light"]{
  --bg:#faf7f1; --bg-2:#f3eee5; --surface:#ffffff; --surface-2:#f6f1e8;
  --line:#e7dfd1; --line-2:#d9cfbd;
  --text:#15120d; --muted:#3b362f; --dim:#6a6358;
  --amber:#ffb43d; --amber-ink:#9e5600; --on-amber:#17120a;
  --glow:rgba(255,180,61,.24); --phone:#111; --ok:#1f8a4c; --bad:#b3263a;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--text);font:500 17px/1.6 var(--body);-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.03;letter-spacing:.005em;margin:0;text-wrap:balance}
h2 em,h1 em{font-style:normal;color:var(--amber-ink)}
.eyebrow{font:500 13px/1.5 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--amber-ink)}
.lead{font-size:clamp(18px,1.6vw,21px);font-weight:500;line-height:1.55;color:var(--muted);max-width:36em;margin:0}
.skip{position:absolute;left:-999px;top:8px;z-index:20;background:var(--amber);color:var(--on-amber);padding:10px 16px;border-radius:10px;font-weight:700}
.skip:focus{left:12px}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:700 16px/1.1 var(--body);padding:15px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;text-align:center;transition:transform .15s,box-shadow .15s,background .15s}
.btn-lg{padding:18px 28px;font-size:17px}
.btn-a{background:var(--amber);color:var(--on-amber);box-shadow:0 10px 30px -12px rgba(255,180,61,.6)}
.btn-a:hover{transform:translateY(-1px);box-shadow:0 14px 34px -12px rgba(255,180,61,.75)}
.btn-g{border-color:var(--line-2);color:var(--text);background:transparent}
.btn-g:hover{background:var(--surface-2)}
.btn[disabled]{opacity:.6;cursor:progress}

section{padding-block:clamp(64px,9vw,120px)}
section.tight{padding-top:0}
.band{background:var(--bg-2);border-block:1px solid var(--line)}
.sec-head{display:grid;gap:14px;margin-bottom:clamp(32px,5vw,56px);max-width:760px}
.sec-head h2{font-size:clamp(34px,5vw,58px)}
.center{text-align:center;margin-top:32px}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 84%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand img{width:44px;height:44px;border-radius:50%}
.brand b{display:block;font:400 20px/1 var(--display);letter-spacing:.02em}
.brand small{display:block;font:500 10px/1 var(--mono);letter-spacing:.34em;color:var(--amber-ink);margin-top:5px}
.links{display:flex;gap:22px;margin-left:auto;font-weight:700;font-size:15px;color:var(--muted)}
.links a{white-space:nowrap}.links a:hover{color:var(--text)}
.langs{display:flex;border:1px solid var(--line-2);border-radius:999px;padding:3px;font:700 12px/1 var(--body)}
.langs a{padding:8px 10px;border-radius:999px;color:var(--muted)}
.langs a.on{background:var(--surface-2);color:var(--text)}
.theme{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-2);background:transparent;color:var(--text);border-radius:999px;padding:8px 13px;font:600 13px/1 var(--body);cursor:pointer}
.theme .i-sun{display:none} html[data-theme="light"] .theme .i-sun{display:block} html[data-theme="light"] .theme .i-moon{display:none}
.nav-cta{padding:12px 18px;font-size:14px;white-space:nowrap}

/* hero */
.hero{position:relative;overflow:hidden;padding-block:clamp(40px,6vw,88px) clamp(56px,8vw,104px)}
.hero::before{content:"";position:absolute;inset:-25% -10% auto 38%;height:780px;background:radial-gradient(closest-side,var(--glow),transparent);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(44px,5.4vw,78px);margin:16px 0 20px}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.fine{margin:16px 0 0;font-size:15px;font-weight:600;color:var(--dim)}
.countdown{margin-top:26px;display:grid;gap:10px}
.countdown .when{font:500 12px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.clock{display:flex;gap:10px}
.clock .u{min-width:74px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px 12px;text-align:center}
.clock b{display:block;font:400 34px/1 var(--display);font-variant-numeric:tabular-nums}
.clock span{font-size:13px;font-weight:600;color:var(--muted)}
.phones{position:relative;height:620px}
.phone{position:absolute;width:268px;border-radius:40px;padding:9px;background:var(--phone);box-shadow:0 40px 80px -30px rgba(0,0,0,.55),0 0 0 1px var(--line-2)}
.phone img{border-radius:32px;aspect-ratio:1170/1842;object-fit:cover;object-position:top;width:100%}
.phone.p1{left:50%;top:0;transform:translateX(-50%);z-index:3}
.phone.p2{left:0;top:72px;transform:rotate(-7deg) scale(.86);z-index:2}
.phone.p3{right:0;top:72px;transform:rotate(7deg) scale(.86);z-index:1}

/* facts */
.facts{border-block:1px solid var(--line);background:var(--bg-2)}
.facts .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:26px 20px;border-left:1px solid var(--line)} .fact:first-child{border-left:0}
.fact b{display:block;font:400 32px/1.05 var(--display)}
.fact span{font-size:15px;font-weight:600;color:var(--muted)}

/* cards */
.paths,.promise{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:flex;flex-direction:column;gap:12px;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--line-2);transform:translateY(-2px)}
.card .tag{align-self:flex-start;font:600 12px/1 var(--body);padding:7px 12px;border-radius:999px;background:var(--surface-2);color:var(--muted)}
.card h3{font-size:30px}
.promise .card h3{font-size:26px}
.card p{margin:0;color:var(--muted);font-size:16.5px}
.card .more{margin-top:auto;padding-top:12px;font-weight:700;color:var(--amber-ink)}
.card.hi{border-color:color-mix(in srgb,var(--amber) 55%,transparent)}

/* pillars */
.pillar{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-block:28px}
.pillar + .pillar{border-top:1px solid var(--line)}
.pillar.rev .shot{order:2}
.pillar .shot{display:flex;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:36px 20px 0;overflow:hidden;height:440px}
.pillar .shot .phone{position:relative;transform:none;width:250px}
.pillar h3{font-size:clamp(30px,3.4vw,42px);margin:12px 0 14px}

/* steps + road */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.steps li,.road li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.steps .when,.road .when{display:block;font:500 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--amber-ink);margin-bottom:10px}
.steps h3{font-size:24px;margin-bottom:8px}
.steps p,.road p{margin:0;color:var(--muted);font-size:16px}
.road{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.road p{color:var(--text);font-size:17px;font-weight:600}

/* teacher + videos */
.teacher{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.photo{aspect-ratio:4/5;border-radius:28px;border:2px dashed var(--line-2);display:grid;place-items:center;text-align:center;color:var(--dim);background:var(--surface);padding:24px}
.photo img{width:120px;margin:0 auto 14px;opacity:.9}
.quote{font:400 clamp(28px,3.2vw,40px)/1.12 var(--display);margin:14px 0 18px}
.teacher .cta{margin-top:24px}
.vids{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.vid{aspect-ratio:9/16;border-radius:16px;background:linear-gradient(160deg,var(--surface-2),var(--surface));border:1px solid var(--line);display:grid;place-items:center;position:relative;overflow:hidden}
.vid .play{width:58px;height:58px;border-radius:50%;background:var(--amber);position:relative;box-shadow:0 10px 30px -10px rgba(255,180,61,.7)}
.vid .play::after{content:"";position:absolute;left:23px;top:18px;border-left:16px solid var(--on-amber);border-top:11px solid transparent;border-bottom:11px solid transparent}
.vid .lbl{position:absolute;bottom:14px;font-size:13px;color:var(--muted)}
.vid:hover .play{transform:scale(1.06)}

/* reservation */
.reserve-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.reserve-grid h2{font-size:clamp(34px,4.6vw,54px);margin:12px 0 14px}
.offer{display:flex;gap:12px;align-items:center;margin:22px 0 0;padding:14px 16px;border-radius:14px;background:var(--surface);border:1px solid var(--line);color:var(--muted);max-width:32em}
.offer b{font:400 28px/1 var(--display);color:var(--amber-ink)}
.spots{display:flex;gap:10px;align-items:center;margin:14px 0 0;color:var(--muted);font-weight:600}
.spots i{width:10px;height:10px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 25%,transparent)}
.reserve{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px}
.rform{display:grid;gap:16px}
.rform label{display:grid;gap:8px;font-weight:600;font-size:14px;color:var(--muted)}
.rform input,.rform select{font:500 16px/1.2 var(--body);color:var(--text);background:var(--bg);border:1px solid var(--line-2);border-radius:12px;padding:14px 14px;width:100%}
.rform input:focus,.rform select:focus{border-color:var(--amber);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--amber) 30%,transparent)}
.rmsg{margin:14px 0 0;font-weight:600;min-height:1em}
.rmsg.ok{color:var(--ok)} .rmsg.bad{color:var(--bad)}
.reserve.done .rform{display:none}
#r-wa{margin-top:10px}
.rnote{margin:14px 0 0;font-size:13px;color:var(--dim)}

/* faq */
.faq{max-width:860px;border-top:1px solid var(--line)}
.q{border-bottom:1px solid var(--line)}
.q summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;padding:20px 0;font-size:18px;font-weight:700}
.q summary::-webkit-details-marker{display:none}
.q summary::after{content:"+";color:var(--amber-ink);font-size:24px;line-height:1;transition:transform .2s}
.q[open] summary::after{transform:rotate(45deg)}
.q p{margin:0 0 20px;color:var(--muted);max-width:44em;font-size:17px}
.faq-more{margin-top:22px;color:var(--muted)} .faq-more a{color:var(--amber-ink);font-weight:700}

/* final + footer */
.final{text-align:center;background:var(--bg-2);border-top:1px solid var(--line)}
.final h2{font-size:clamp(40px,6vw,76px);margin:0 auto 20px;max-width:900px}
.final .lead{margin-inline:auto}
.center-row{display:flex;justify-content:center;margin-top:28px}
footer{border-top:1px solid var(--line);padding-block:40px 48px;color:var(--dim);font-size:14px}
footer .wrap{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px;align-items:start}
.f-brand{display:flex;gap:12px;align-items:center}
.f-brand img{border-radius:50%}
.f-brand b{display:block;color:var(--text);font:400 17px/1 var(--display)}
.f-brand small{display:block;margin-top:4px}
.f-links,.f-wa{display:grid;gap:8px}
.f-links a:hover,.f-wa a:hover,.f-copy a:hover{color:var(--text)}
.f-copy{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px}

/* the phone's sticky button */
.sticky{display:none}

@media (max-width:1240px){ .links{display:none} .langs{margin-left:auto} }
@media (max-width:860px){
  .langs a{padding:7px 8px}
  .theme .t-label,.nav-cta{display:none}
  .nav .wrap{gap:10px}
  .langs{margin-left:auto}
  .brand small{letter-spacing:.24em}
  .hero .wrap,.pillar,.teacher,.reserve-grid{grid-template-columns:1fr}
  .pillar.rev .shot{order:0}
  .phones{height:460px}
  .phone{width:196px;border-radius:30px;padding:7px} .phone img{border-radius:24px}
  .facts .wrap{grid-template-columns:1fr 1fr} .fact:nth-child(3){border-left:0} .fact{border-top:1px solid var(--line)}
  .paths,.promise,.steps,.road{grid-template-columns:1fr}
  .vids{grid-template-columns:1fr 1fr}
  .pillar .shot{height:380px}
  .clock .u{min-width:0;flex:1}
  footer .wrap{grid-template-columns:1fr}
  .sticky{display:flex;position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:9;transition:opacity .2s,transform .2s}
  .sticky .btn{flex:1}
  .sticky.off{opacity:0;transform:translateY(20px);pointer-events:none}
  body{padding-bottom:88px}
}
@media (max-width:420px){ .brand b{font-size:17px} .brand img{width:38px;height:38px} }

/* song chips (Corda Kids page) */
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{padding:10px 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-weight:600}
.card.hi h3{font-size:26px}