/* ============================================================
   Link Video Maker — "Cutting Room" editorial film-studio theme
   Light (default) = warm ivory paper · Dark = warm espresso
   ============================================================ */

:root{
  /* LIGHT — warm ivory paper */
  --bg:#f4efe4;
  --bg-2:#ebe3d3;
  --surface:#fcf9f1;
  --surface-2:#f6f0e3;
  --ink:#211c16;
  --ink-dim:#5f564a;
  --ink-soft:#948a79;
  --line:#ded4c1;
  --line-2:#cabca4;
  --field-bg:#fbf6ec;
  --accent:#c0562a;
  --accent-2:#9c4520;
  --accent-ink:#fcf9f1;
  --accent-soft:#f2e5d3;
  --error:#b23a25;
  --ok:#3f7a34;
  --shadow:24px 24px 60px -30px rgba(70,45,20,.35);
  --shadow-sm:8px 10px 24px -14px rgba(70,45,20,.3);
  --grain:.05;
  color-scheme:light;
}

html[data-theme="dark"]{
  /* DARK — warm espresso, deliberately not black */
  --bg:#231e18;
  --bg-2:#2a241d;
  --surface:#2f2820;
  --surface-2:#352d24;
  --ink:#f3ebdc;
  --ink-dim:#bcae99;
  --ink-soft:#8d8070;
  --line:#463c2f;
  --line-2:#5a4d3c;
  --field-bg:#1d1811;
  --accent:#e88a44;
  --accent-2:#c96e2f;
  --accent-ink:#231d15;
  --accent-soft:#39301f;
  --error:#f0997f;
  --ok:#9ccc7e;
  --shadow:24px 24px 70px -30px rgba(0,0,0,.6);
  --shadow-sm:8px 10px 28px -16px rgba(0,0,0,.55);
  --grain:.08;
  color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Archivo','Noto Sans KR',system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  background-image:
    radial-gradient(120% 80% at 100% -10%, color-mix(in srgb,var(--accent) 12%, transparent), transparent 60%),
    radial-gradient(90% 60% at -10% 0%, color-mix(in srgb,var(--accent) 7%, transparent), transparent 55%);
  background-attachment:fixed;
  line-height:1.55;
  transition:background-color .4s ease,color .4s ease;
}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--accent);text-underline-offset:3px}

/* film-grain overlay */
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  opacity:var(--grain);mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
html[data-theme="dark"] .grain{mix-blend-mode:screen}

/* ---------- Slate header ---------- */
header.slate{
  position:relative;z-index:2;
  display:flex;align-items:center;gap:20px;
  padding:16px max(22px,4vw);
  border-bottom:1.5px solid var(--ink);
  background:var(--surface);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.clap{
  font-size:15px;letter-spacing:-2px;color:var(--accent-ink);
  background:var(--accent);border-radius:7px;
  width:32px;height:32px;display:grid;place-items:center;
  transform:rotate(-8deg);box-shadow:var(--shadow-sm);
}
.wordmark{
  font-family:'Fraunces',serif;font-weight:600;font-size:19px;
  letter-spacing:-.01em;line-height:1;
}
.wordmark em{color:var(--accent);font-style:normal;padding:0 2px}
.live-dot{
  width:11px;height:11px;border-radius:50%;flex:none;
  background:#ff3fa4;box-shadow:0 0 0 0 rgba(255,63,164,.55);
  animation:pulse-pink 1.3s ease-in-out infinite;
}
@keyframes pulse-pink{
  0%{opacity:1;box-shadow:0 0 0 0 rgba(255,63,164,.55)}
  70%{opacity:.35;box-shadow:0 0 0 9px rgba(255,63,164,0)}
  100%{opacity:1;box-shadow:0 0 0 0 rgba(255,63,164,0)}
}
.slate-meta{
  font-family:'JetBrains Mono',monospace;font-size:11px;
  letter-spacing:.22em;color:var(--ink-soft);
  text-transform:uppercase;margin-right:auto;
  padding-left:16px;border-left:1px solid var(--line-2);
}
.slate-actions{display:flex;gap:9px}
.chip-btn{
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.06em;
  background:transparent;border:1.5px solid var(--line-2);
  color:var(--ink);border-radius:999px;padding:8px 14px;
  transition:border-color .2s,background .2s,transform .2s;
}
.chip-btn:hover{border-color:var(--ink);transform:translateY(-1px)}
#theme-toggle{min-width:42px;font-size:15px;padding:8px 10px}

/* ---------- Layout shell ---------- */
main{position:relative;z-index:2;max-width:1320px;margin:auto;padding:44px max(22px,4vw) 90px}

.scene-tag{
  font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:500;
  letter-spacing:.28em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:9px;margin-bottom:14px;
}
.scene-tag::before{content:"";width:22px;height:1.5px;background:var(--accent)}

.display{
  font-family:'Fraunces',serif;font-weight:600;
  font-size:clamp(34px,5.2vw,68px);line-height:1.02;
  letter-spacing:-.02em;margin:0 0 16px;
}
.display .hl{
  font-style:italic;color:var(--accent);
  font-variation-settings:'opsz' 120;
}
p{color:var(--ink-dim);margin:0 0 16px}

/* ---------- Hero ---------- */
.hero{
  display:flex;justify-content:space-between;align-items:flex-end;gap:40px;
  padding-bottom:34px;margin-bottom:34px;
  border-bottom:1px solid var(--line);
}
.hero-copy{max-width:640px}
.hero-copy p{font-size:clamp(15px,1.4vw,18px);max-width:520px}
.reel{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:2px;min-width:210px;
}
.reel li{
  font-family:'JetBrains Mono',monospace;font-size:14px;
  display:flex;align-items:baseline;gap:12px;
  padding:11px 0;border-top:1px solid var(--line);color:var(--ink-dim);
}
.reel li:last-child{border-bottom:1px solid var(--line)}
.reel .n{color:var(--accent);font-weight:700;font-size:12px;letter-spacing:.1em}

/* ---------- Panels / cards ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);gap:22px}
.panel{
  background:var(--surface);
  border:1.5px solid var(--ink);
  border-radius:4px;
  padding:30px;
  box-shadow:var(--shadow);
}
.status-panel{
  background:var(--surface-2);
  display:flex;flex-direction:column;
  min-height:360px;
}

/* ---------- Forms ---------- */
label{
  display:block;font-family:'JetBrains Mono',monospace;
  font-size:11px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-soft);margin:20px 0 8px;
}
input,textarea,select{
  width:100%;padding:13px 15px;
  background:var(--field-bg);
  border:1.5px solid var(--line-2);border-radius:3px;
  color:var(--ink);outline:0;line-height:1.5;
  transition:border-color .18s,box-shadow .18s;
  font-family:'Archivo','Noto Sans KR',sans-serif;
}
select{appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-soft) 50%),linear-gradient(135deg,var(--ink-soft) 50%,transparent 50%);
  background-position:calc(100% - 18px) 55%,calc(100% - 13px) 55%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px;
}
textarea{resize:vertical}
input:focus,textarea:focus,select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent);
}
.hint{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink-soft);margin:9px 0 0;letter-spacing:.01em}
.options{display:grid;grid-template-columns:1fr 1fr;gap:2px 20px;margin:8px 0 4px}

details{border:1.5px solid var(--line-2);border-radius:3px;padding:14px 16px;margin-top:22px;background:var(--field-bg)}
summary{cursor:pointer;font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);font-weight:500}
.extra{padding-top:6px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-block;text-align:center;text-decoration:none;
  border-radius:3px;padding:13px 20px;font-weight:600;
  border:1.5px solid var(--ink);transition:transform .18s,box-shadow .18s,background .2s,color .2s;
}
.btn-accent{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:6px 8px 0 -1px var(--ink)}
.btn-quiet{background:var(--surface);color:var(--ink)}
.btn-quiet:hover{background:var(--bg-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-block{display:block;width:100%}
.btn-lg{font-size:17px;padding:17px;margin-top:24px;letter-spacing:.01em}
.btn:disabled{opacity:.55;cursor:wait;transform:none;box-shadow:none}

/* ---------- Login ---------- */
.login-scene{max-width:440px;margin:6vh auto 0;background:var(--surface);border:1.5px solid var(--ink);border-radius:4px;padding:38px;box-shadow:var(--shadow)}
.login-scene .display{font-size:clamp(30px,4vw,44px)}
.pw-wrap{position:relative}
.pw-wrap input{padding-right:46px}
.pw-eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;font-size:18px;line-height:1;padding:6px 8px;opacity:.65;filter:grayscale(.2)}
.pw-eye:hover{opacity:1}
.pw-eye.on{opacity:1}
.login-submit{margin-top:20px}
.form-note{margin-top:14px}
.status-title{font-size:24px;margin-bottom:18px}
.settings-title{font-size:clamp(28px,3.4vw,40px)}

/* ---------- Status / downloads ---------- */
#status{flex:1;display:flex;flex-direction:column;justify-content:center;color:var(--ink-dim);white-space:pre-line;font-size:15px}
.status-icon{
  font-family:'JetBrains Mono',monospace;font-size:13px;letter-spacing:.2em;
  color:var(--accent);border:1px dashed var(--line-2);border-radius:3px;
  padding:24px;text-align:center;margin-bottom:16px;
}
#downloads{margin-top:18px}
.preview-wrap{margin-bottom:16px}
.preview-frame{margin:0 auto 12px;background:#000;overflow:hidden;transition:max-width .25s,border-radius .25s}
.preview-frame video{display:block;width:100%;height:auto;background:#000}
.preview-frame.mobile{max-width:250px;border-radius:26px;border:7px solid var(--ink);box-shadow:var(--shadow-sm)}
.preview-frame.pc{max-width:100%;border-radius:8px;border:2px solid var(--ink);border-top:22px solid var(--ink);position:relative}
.preview-frame.pc::before{content:"● ● ●";position:absolute;top:-19px;left:10px;font-size:9px;letter-spacing:2px;color:var(--line-2)}
.preview-tools{display:flex;gap:7px;flex-wrap:wrap;justify-content:center}
.preview-tools .chip-btn{font-size:11px;padding:7px 11px}
.preview-tools .chip-btn.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.download{margin-top:10px}
#credit-list{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink-soft);margin-top:18px;line-height:1.7}
.error{color:var(--error);font-weight:600;margin-top:12px}

/* ---------- Settings ---------- */
.settings{margin-top:6px;background:var(--surface);border:1.5px solid var(--ink);border-radius:4px;padding:32px;box-shadow:var(--shadow)}
.settings-head{display:flex;justify-content:space-between;gap:22px;align-items:flex-start}
.key-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0}
.key{background:var(--surface-2);border:1.5px solid var(--line-2);border-radius:4px;padding:22px;display:flex;flex-direction:column}
.key h2{font-family:'Fraunces',serif;font-size:20px;font-weight:600;margin:0 0 4px}
.key p{font-size:14px;flex:1;color:var(--ink-dim)}
.key a{font-family:'JetBrains Mono',monospace;font-size:12px;margin:4px 0 14px;display:inline-block}
.key-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.key-head span{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;color:var(--ink-soft)}
.key-head span.on{color:var(--ok)}
.reveal-btn{margin-top:10px;align-self:flex-start;font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.04em;background:transparent;border:1.5px solid var(--line-2);color:var(--ink);border-radius:999px;padding:7px 13px;transition:border-color .2s}
.reveal-btn:hover{border-color:var(--accent)}
.revealed{display:block;margin-top:9px;font-family:'JetBrains Mono',monospace;font-size:12px;word-break:break-all;background:var(--field-bg);border:1px dashed var(--line-2);border-radius:3px;padding:9px 11px;color:var(--ink)}
.settings-help{border-top:1px solid var(--line);margin-top:28px;padding-top:20px}
.settings-help h2{font-family:'Fraunces',serif;font-weight:600;font-size:20px;margin:0 0 10px}
.settings-help p{max-width:860px}
#settings-message{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--ok);min-height:18px;margin-top:14px}
#status p{margin:0}

/* ---------- Entrance motion ---------- */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.hero-copy,.reel,.layout>.panel,.login-scene{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
.hero-copy{animation-delay:.02s}
.reel{animation-delay:.12s}
.layout>.panel:first-child{animation-delay:.16s}
.layout>.panel:last-child{animation-delay:.24s}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .layout,.key-grid{grid-template-columns:1fr}
  .hero{flex-direction:column;align-items:flex-start;gap:24px}
  .reel{flex-direction:row;flex-wrap:wrap;gap:0 20px}
  .reel li{border:none;border-top:1px solid var(--line)}
  .reel li:last-child{border-bottom:none}
  .panel{padding:22px}
}
@media(max-width:520px){
  .options{grid-template-columns:1fr}
  .slate-meta{display:none}
  header.slate{gap:12px}
  .settings-head{flex-direction:column}
}