/* FLXSL DROP — identité FLxSL : noir OLED, rouge saturé, mono.
 * Aucune ressource externe : polices auto-hébergées, zéro CDN. */

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-latin-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/fonts/ibm-plex-mono-latin-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/fonts/ibm-plex-sans-latin-wght.woff2") format("woff2-variations");
}
@font-face {
  font-family: "Instrument Serif";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/instrument-serif-latin-400.woff2") format("woff2");
}

:root {
  --ink-void: #000000;
  --ink-black: #000000;
  --ink-1: #060606;
  --ink-2: #0c0c0c;
  --ink-3: #131313;
  --paper: #e9e4da;
  --paper-dim: #9a958c;
  --paper-faint: #5c5952;
  --accent: #e8401f;
  --accent-hi: #ff5b2b;
  --accent-dim: #8f2209;
  --line: rgba(232, 64, 31, 0.34);
  --line-soft: rgba(233, 228, 218, 0.14);
  --ok: #7ec46a;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-void);
  color: var(--paper);
  font-family: var(--sans);
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

::selection { background: var(--accent); color: #000; }

a { color: var(--accent-hi); text-decoration: none; }
a:hover { color: var(--paper); }

/* ---------- barre supérieure ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--ink-black);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand {
  color: var(--paper);
  font-weight: 500;
  letter-spacing: 0.22em;
}
.brand .mark { color: var(--accent-hi); }
.brand:hover .mark { color: var(--paper); }

.topbar .right {
  color: var(--paper-faint);
  letter-spacing: 0.18em;
}

/* ---------- structure ---------- */

main {
  flex: 1;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 22px 64px;
}

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-hi);
  margin: 0 0 14px;
}

h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(38px, 7vw, 64px);
  line-height: 1.02;
  margin: 0 0 10px;
  color: var(--paper);
}
h1 .red { color: var(--accent-hi); }

.lede {
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 34px;
  max-width: 56ch;
}
.lede .mono { font-family: var(--mono); color: var(--paper-faint); font-size: 12px; }

.ascii {
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.15;
  color: var(--accent-dim);
  white-space: pre;
  overflow-x: auto;
  margin: 0 0 30px;
  user-select: none;
}

/* ---------- panneau / formulaire ---------- */

.panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #0a0a0a, #030303);
  padding: 22px;
}

.panel + .panel { margin-top: 18px; }

.panel-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--paper-dim);
  margin: 0 0 16px;
}
.panel-title .n { color: var(--accent-hi); }

.dropzone {
  border: 1px dashed var(--line);
  padding: 34px 18px;
  text-align: center;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
  outline: none;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.drag {
  border-color: var(--accent-hi);
  background: rgba(232, 64, 31, 0.05);
}
.dropzone .dz-main {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--paper);
  letter-spacing: 0.06em;
}
.dropzone .dz-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--paper-faint);
  margin-top: 8px;
  letter-spacing: 0.08em;
}
.dropzone.loaded .dz-main { color: var(--accent-hi); }

.filechip {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  background: var(--ink-1);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--paper);
}
.filechip.show { display: flex; }
.filechip .size { color: var(--paper-faint); }
.filechip button {
  background: none;
  border: 1px solid var(--line-soft);
  color: var(--paper-dim);
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  cursor: pointer;
}
.filechip button:hover { border-color: var(--accent); color: var(--accent-hi); }

.opts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}
.opt label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-faint);
  margin-bottom: 6px;
}
.opt input, .opt select {
  width: 100%;
  background: var(--ink-1);
  border: 1px solid var(--line-soft);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  padding: 9px 10px;
  outline: none;
}
.opt input:focus, .opt select:focus { border-color: var(--accent); }
.opt .hint {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--paper-faint);
  margin-top: 5px;
  letter-spacing: 0.04em;
}

.actions { margin-top: 18px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.btn {
  appearance: none;
  background: var(--accent);
  color: #000;
  border: 1px solid var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 12px 22px;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease;
}
.btn:hover:not(:disabled) { background: var(--accent-hi); border-color: var(--accent-hi); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn.ghost {
  background: transparent;
  color: var(--accent-hi);
}
.btn.ghost:hover:not(:disabled) { background: rgba(232, 64, 31, 0.1); color: var(--paper); }

.status {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--paper-dim);
  letter-spacing: 0.04em;
}
.status.err { color: var(--accent-hi); }
.status.ok { color: var(--ok); }

/* ---------- progression ---------- */

.progress {
  margin-top: 16px;
  border: 1px solid var(--line-soft);
  background: var(--ink-1);
  height: 26px;
  position: relative;
  display: none;
}
.progress.show { display: block; }
.progress .bar {
  position: absolute;
  inset: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width 120ms linear;
}
.progress .pct {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--paper);
  mix-blend-mode: difference;
  letter-spacing: 0.1em;
}

/* ---------- résultat ---------- */

.result { display: none; }
.result.show { display: block; }

.linkbox {
  display: flex;
  gap: 10px;
  align-items: stretch;
}
.linkbox input {
  flex: 1;
  min-width: 0;
  background: var(--ink-1);
  border: 1px solid var(--line);
  color: var(--accent-hi);
  font-family: var(--mono);
  font-size: 13px;
  padding: 11px 12px;
  outline: none;
}
.linkbox .btn { white-space: nowrap; }

.recap {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--paper-dim);
  line-height: 2;
}
.recap b { color: var(--paper); font-weight: 500; }
.recap .k { color: var(--paper-faint); letter-spacing: 0.14em; text-transform: uppercase; font-size: 10px; margin-right: 8px; }

.warn {
  margin-top: 14px;
  border-left: 2px solid var(--accent);
  padding: 8px 12px;
  background: rgba(232, 64, 31, 0.06);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--paper-dim);
  line-height: 1.7;
  letter-spacing: 0.03em;
}

/* ---------- page drop ---------- */

.filecard { display: none; }
.filecard.show { display: block; }

.gate-pw { margin-top: 16px; }
.panel-hidden { display: none; }
.panel-hidden.show { display: block; }

.filerow {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line-soft);
  padding: 10px 0;
  font-family: var(--mono);
  font-size: 13px;
}
.filerow .k {
  color: var(--paper-faint);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.filerow .v { color: var(--paper); text-align: right; word-break: break-all; }

.gate { display: none; }
.gate.show { display: block; }

.burnmsg {
  display: none;
  border: 1px solid var(--accent);
  background: rgba(232, 64, 31, 0.07);
  padding: 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--paper);
  line-height: 1.8;
  letter-spacing: 0.04em;
}
.burnmsg.show { display: block; }
.burnmsg .big { color: var(--accent-hi); letter-spacing: 0.2em; text-transform: uppercase; }

/* ---------- pied de page ---------- */

footer {
  border-top: 1px solid var(--line-soft);
  padding: 16px 22px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-faint);
  background: var(--ink-black);
}

/* ---------- 404 ---------- */

.code404 {
  font-family: var(--mono);
  font-size: clamp(60px, 16vw, 160px);
  color: var(--accent);
  letter-spacing: 0.1em;
  margin: 0;
  line-height: 1;
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  main { padding: 34px 16px 48px; }
  .opts { grid-template-columns: 1fr; }
  .topbar { padding: 12px 16px; font-size: 10px; }
  .linkbox { flex-direction: column; }
  footer { flex-direction: column; gap: 6px; }
}