/* =========================================================
   KatchTV — "The internet, on air."
   Design language: late-night broadcast. Ink black, warm paper,
   one signal-orange. Serif italics for voice, mono for metadata.
   ========================================================= */
:root{
  --ink:#0b0b0e; --ink-2:#121217; --ink-3:#1a1a21; --line:#26262f; --line-2:#34343f;
  --paper:#f3ede3; --muted:#9b978f; --dim:#6d6a65;
  --signal:#ff5a1f; --signal-2:#ff7a45;
  --ch:#ff5a1f;                       /* current channel color (set by JS) */
  --serif:"Instrument Serif", Georgia, serif;
  --sans:"Inter Tight", Inter, system-ui, sans-serif;
  --mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --r:14px; --gutter:clamp(16px,3vw,40px);
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important} /* the hidden attribute must always win over component display rules */
html{overflow-x:clip;scroll-behavior:smooth}
body{background:var(--ink);color:var(--paper);font:16px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip;min-height:100vh}
body::before{ /* channel-tinted ambient glow */
  content:"";position:fixed;inset:-20vh -10vw auto;height:90vh;pointer-events:none;z-index:-1;
  background:radial-gradient(60% 60% at 30% 20%, color-mix(in srgb,var(--ch) 22%, transparent), transparent 70%);
  transition:background 1.2s ease;
}
body::after{ /* film grain */
  content:"";position:fixed;inset:0;pointer-events:none;z-index:100;opacity:.06;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.mono{font-family:var(--mono);letter-spacing:.02em}
em{font-family:var(--serif);font-style:italic;font-weight:400}
.kicker{font-size:.72rem;letter-spacing:.18em;color:var(--signal);margin-bottom:14px}
.label{font-size:.68rem;letter-spacing:.16em;color:var(--muted);display:block}
.display{font:400 clamp(2.1rem,5vw,4rem)/1.02 var(--serif);letter-spacing:-.01em}
.display.small{font-size:clamp(1.8rem,3.6vw,2.8rem)}
.display em{color:var(--signal)}
:focus-visible{outline:3px solid var(--signal);outline-offset:3px;border-radius:8px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:600;font-size:.95rem;text-decoration:none;transition:transform .15s, background .15s, border-color .15s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-signal{background:var(--signal);color:#160800}
.btn-signal:hover{background:var(--signal-2)}
.btn-ghost{border:1px solid var(--line-2);color:var(--paper)}
.btn-ghost:hover{border-color:var(--paper)}
.btn-xl{padding:18px 34px;font-size:1.15rem}
.btn-block{width:100%;margin-top:18px;padding:15px}
.chip-btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--ink-2);border-radius:999px;padding:8px 14px;font-size:.85rem;font-weight:500;transition:border-color .15s}
.chip-btn:hover{border-color:var(--line-2)}
.chip-btn.icon{padding:8px 11px}
.k{font-family:var(--mono);font-size:.68rem;border:1px solid var(--line-2);border-radius:4px;padding:1px 5px;color:var(--muted)}
.lamp{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--signal);box-shadow:0 0 12px var(--signal);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35;box-shadow:none}}

/* ---------- splash ---------- */
.splash{position:fixed;inset:0;z-index:90;display:grid;place-items:center;background:var(--ink);transition:opacity .7s ease, visibility .7s}
.splash.gone{opacity:0;visibility:hidden}
.noise,.static{position:absolute;inset:0;width:100%;height:100%;image-rendering:pixelated}
.noise{opacity:.13}
.splash-inner{position:relative;text-align:center;padding:24px;max-width:760px}
.splash-kicker{font-size:.78rem;letter-spacing:.2em;color:var(--muted);display:flex;gap:10px;align-items:center;justify-content:center}
.splash-title{font:400 clamp(4.5rem,16vw,11rem)/.9 var(--serif);letter-spacing:-.03em;margin:22px 0 18px}
.splash-title em{color:var(--signal)}
.splash-sub{color:#cfc9bf;font-size:clamp(1rem,2.2vw,1.25rem);margin-bottom:34px}
.splash-sources{margin-top:34px;font-size:.7rem;letter-spacing:.14em;color:var(--dim)}

/* ---------- top bar ---------- */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px var(--gutter);position:sticky;top:0;z-index:20;background:linear-gradient(var(--ink) 60%, transparent)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:34px;height:26px;color:var(--paper)}
.brand-word{font:400 1.6rem/1 var(--serif);letter-spacing:-.01em}
.brand-word em{color:var(--signal)}
.dotcom{font-family:var(--mono);font-size:.42em;letter-spacing:.04em;color:var(--muted);margin-left:.12em;vertical-align:.12em}
.splash-title .dotcom{font-size:.22em;vertical-align:.9em;color:#cfc9bf}
.onair{display:flex;align-items:center;gap:8px;font-size:.75rem;letter-spacing:.14em;color:var(--muted)}
.onair .sep{color:var(--dim)}
.top-actions{display:flex;gap:8px}
@media(max-width:720px){.onair{display:none}.chip-btn .k{display:none}#openKatch{display:none}}

/* ---------- stage ---------- */
.stage-wrap{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;padding:8px var(--gutter) 0;max-width:1680px;margin:0 auto}
@media(max-width:1060px){.stage-wrap{grid-template-columns:1fr}}
.screen-frame{border-radius:20px;padding:10px;background:linear-gradient(160deg,#1c1c22,#0d0d10);border:1px solid var(--line);box-shadow:0 50px 120px -40px color-mix(in srgb,var(--ch) 45%, transparent), inset 0 1px 0 #2b2b33;transition:box-shadow 1.2s}
.screen{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000}
.screen-backdrop{position:absolute;inset:-30px;background-size:cover;background-position:center;filter:blur(40px) brightness(.45) saturate(1.3);transform:scale(1.1);transition:background-image .6s}
.player-slot{position:absolute;inset:0;display:grid;place-items:center}
.player-slot iframe,.player-slot video,.player-slot>div{border:0;width:100%;height:100%;display:block;background:transparent}
.player-slot video{object-fit:contain;background:#000}
.player-slot.vertical iframe{width:auto;height:100%;aspect-ratio:9/16;max-width:100%;background:#000}
.player-slot.post iframe{width:min(100%,560px);height:100%;background:transparent}
.static{opacity:0;transition:opacity .25s;pointer-events:none}
.static.on{opacity:1}
.bumper{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:6%;background:radial-gradient(80% 80% at 20% 30%, color-mix(in srgb,var(--ch) 35%, #000), #000)}
.bumper-k{font-size:.8rem;letter-spacing:.2em;color:#d8d2c8}
.bumper-title{font:400 clamp(2.5rem,7vw,6rem)/1 var(--serif);font-style:italic;margin:10px 0}
.bumper-next{font-size:clamp(1rem,2vw,1.4rem);color:#e8e2d8;max-width:80%}

.credit-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:14px 4px 8px;flex-wrap:wrap}
.credit-left{display:flex;align-items:center;gap:12px;min-width:0}
.pill{font:600 .72rem var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:var(--ch);color:#0b0b0e;transition:background .6s}
.credit-creator{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.credit-right{font-size:.78rem;color:var(--muted)}
.progress{height:2px;background:var(--line);border-radius:2px;overflow:hidden;margin:0 4px}
.progress i{display:block;height:100%;width:0;background:var(--ch);transition:width .5s linear, background .6s}

/* ---------- rail ---------- */
.rail{display:flex;flex-direction:column;gap:22px;padding-top:6px}
.rail-ch{display:flex;gap:16px;align-items:flex-start}
.ch-num{font:400 5.4rem/.8 var(--serif);font-style:italic;color:var(--ch);transition:color .6s;min-width:96px}
.ch-name{font-weight:700;font-size:1.35rem;letter-spacing:-.01em}
.ch-tag{color:var(--muted);font-size:.9rem;margin-top:4px}
.now-card{border-top:1px solid var(--line);padding-top:18px}
.now-title{font:400 1.75rem/1.12 var(--serif);margin:8px 0 10px}
.now-meta{font-size:.74rem;color:var(--muted);letter-spacing:.06em}
.now-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.vote-hint{font-size:.68rem;color:var(--dim);margin-top:10px}
.sponsor{border:1px dashed var(--line-2);border-radius:var(--r);padding:14px 16px;font-size:.85rem;color:#d8d2c8}
.sponsor .label{margin-bottom:4px}
.upnext ol{list-style:none;display:grid;gap:10px;margin-top:10px}
.upnext li{display:grid;grid-template-columns:86px 1fr;gap:12px;align-items:center}
.upnext .th{aspect-ratio:16/9;border-radius:8px;background:var(--ink-3) center/cover;border:1px solid var(--line)}
.upnext .t{font-size:.88rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.upnext .w{font:.68rem var(--mono);color:var(--muted);margin-top:3px}

/* ---------- tuner dial ---------- */
.tuner{display:flex;align-items:center;gap:10px;padding:26px var(--gutter) 10px;max-width:1680px;margin:0 auto}
.tune-arrow{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);font-size:1.4rem;flex:none}
.tune-arrow:hover{border-color:var(--paper)}
.dial{flex:1;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;position:relative;padding:4px;
  background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 14px) bottom/100% 8px no-repeat}
.dial::-webkit-scrollbar{display:none}
.station{flex:1 0 170px;text-align:left;padding:12px 14px 16px;border-radius:12px;border:1px solid transparent;position:relative;transition:background .2s,border-color .2s}
.station:hover{background:var(--ink-2)}
.station .sn{font:400 1.6rem/1 var(--serif);font-style:italic;color:var(--sc)}
.station .sl{font-weight:600;font-size:.92rem;margin-top:4px}
.station .so{font:.66rem var(--mono);color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.station.on{background:var(--ink-2);border-color:var(--line-2)}
.station.on::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;border-radius:3px;background:var(--sc);box-shadow:0 0 14px var(--sc)}

/* ---------- below ---------- */
.below{max-width:1280px;margin:0 auto;padding:0 var(--gutter)}
.below section{padding:110px 0;border-top:1px solid var(--line)}
.below section:first-child{border-top:0;margin-top:60px}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:56px}
.three .n{color:var(--signal);font-size:.8rem}
.three h3{font-size:1.2rem;margin:10px 0 8px}
.three p{color:var(--muted)}
@media(max-width:860px){.three{grid-template-columns:1fr}}
.card{background:var(--ink-2);border:1px solid var(--line);border-radius:18px;padding:26px}
.katch-sec{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
@media(max-width:900px){.katch-sec{grid-template-columns:1fr}}
.katch-copy p{color:#cfc9bf;margin-top:18px;max-width:480px}
.fine-list{margin-top:22px;list-style:none;color:var(--muted);font-size:.88rem;display:grid;gap:6px}
.fine-list li::before{content:"— ";color:var(--signal)}
input,select{width:100%;background:var(--ink);border:1px solid var(--line);color:var(--paper);border-radius:12px;padding:13px 14px;font:15px var(--sans);margin:8px 0 16px}
input:focus,select:focus{outline:none;border-color:var(--signal)}
.url-row{position:relative}
.url-row input{padding-right:110px}
.detect{position:absolute;right:12px;top:22px;font-size:.68rem;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}
.detect.ok{color:#c6ff3d}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.two{grid-template-columns:1fr}}
.form-msg{margin-top:12px;font-size:.9rem;min-height:1.2em;color:#c6ff3d}
.form-msg.err{color:#ff8a8a}
.daily{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:end}
@media(max-width:900px){.daily{grid-template-columns:1fr}}
.daily-form{display:flex;gap:10px;flex-wrap:wrap}
.daily-form input{flex:1 1 220px;margin:0}
.daily-form .form-msg{flex-basis:100%}
.brand-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:36px 0 28px}
.brand-grid h3{font-size:1.1rem;margin-bottom:8px}
.brand-grid p{color:var(--muted);font-size:.92rem}
@media(max-width:860px){.brand-grid{grid-template-columns:1fr}}
.foot{border-top:1px solid var(--line);padding:46px 0 70px;display:grid;gap:12px}
.foot p{font-size:.72rem;color:var(--dim);max-width:820px}

/* ---------- guide ---------- */
.guide{position:fixed;inset:0;z-index:60;background:rgba(6,6,8,.92);backdrop-filter:blur(14px);overflow:auto}
.guide-inner{max-width:1280px;margin:0 auto;padding:40px var(--gutter)}
.guide-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:30px}
.g-row{display:grid;grid-template-columns:200px repeat(3,1fr);border-top:1px solid var(--line)}
.g-row > *{padding:16px 14px;min-width:0}
.g-ch{text-align:left;display:flex;gap:12px;align-items:center;border-radius:10px}
.g-ch:hover{background:var(--ink-2)}
.g-ch b{font:400 2rem/1 var(--serif);font-style:italic;color:var(--sc)}
.g-cell .tm{font:.68rem var(--mono);color:var(--muted)}
.g-cell .tt{font-size:.9rem;line-height:1.3;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.g-cell.now{background:color-mix(in srgb,var(--sc) 10%, transparent);border-radius:10px}
.guide-grid{overflow-x:auto}
.guide-grid > div{min-width:760px}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;z-index:95;background:var(--paper);color:var(--ink);padding:12px 20px;border-radius:999px;font-weight:600;transition:all .3s;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- TV mode (10-foot UI) ---------- */
body.tv{overflow:hidden}
body.tv .below, body.tv .top-actions #openKatch{display:none}
body.tv .stage-wrap{grid-template-columns:minmax(0,1fr) 400px;max-width:none}
body.tv .screen-frame{padding:0;border:0;border-radius:0;background:none}
body.tv .ch-num{font-size:7rem}
body.tv .now-title{font-size:2.2rem}
body.tv .station{flex-basis:220px}
body.tv .station.on{outline:3px solid var(--sc)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}