/* BurnLink — design tokens
 * Concept: a single match flame in the dark. Restrained, dim,
 * one hot accent that reads as fire. Monospace for the secret
 * itself because it's data, not prose.
 */

:root {
  --ink-0: #0d0a08;        /* near-black, warm */
  --ink-1: #1a1612;        /* card */
  --ink-2: #2a2520;        /* borders */
  --paper-0: #f3ece1;      /* primary text */
  --paper-1: #b8ada0;      /* secondary */
  --paper-2: #6a6258;      /* tertiary / placeholder */
  --ember: #ff5a1f;        /* hot accent */
  --ember-dim: #c54214;
  --ember-glow: rgba(255, 90, 31, 0.15);
  --danger: #ff7a4a;
  --ok: #7cc88f;

  --radius: 2px;
  --radius-lg: 4px;
  --shadow-glow: 0 0 40px var(--ember-glow);

  --font-display: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--ink-0);
  background-image:
    radial-gradient(ellipse at 50% -10%, var(--ember-glow), transparent 60%);
  color: var(--paper-0);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* Brand / header */
.brand {
  text-align: center;
  margin-bottom: 40px;
}
.flame {
  color: var(--ember);
  filter: drop-shadow(0 0 12px var(--ember-glow));
  margin-bottom: 12px;
  display: inline-block;
}
.brand h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
}
.tagline {
  color: var(--paper-1);
  font-size: 14px;
  margin: 0;
  letter-spacing: 0.01em;
}

/* Cards */
.card {
  background: var(--ink-1);
  border: 1px solid var(--ink-2);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 16px;
}
.card h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 22px;
  margin: 0 0 8px;
}
.lead {
  color: var(--paper-1);
  margin: 0 0 20px;
  font-size: 14px;
}

.hidden { display: none !important; }

/* Form bits */
.field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--paper-1);
  margin-bottom: 8px;
}
.hint { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--paper-2); }

textarea, input[type="text"], input[type="password"], select {
  width: 100%;
  background: var(--ink-0);
  border: 1px solid var(--ink-2);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--paper-0);
  font-family: var(--font-mono);
  font-size: 14px;
  resize: vertical;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input[type="password"] { font-family: var(--font-body); }
select { font-family: var(--font-body); }

textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--ember);
  box-shadow: 0 0 0 3px var(--ember-glow);
}
textarea::placeholder, input::placeholder { color: var(--paper-2); }

.char-counter {
  text-align: right;
  font-size: 12px;
  color: var(--paper-2);
  margin-top: 4px;
  font-family: var(--font-mono);
}

.options {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 24px 0;
}
.option-row { display: flex; flex-direction: column; }

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--paper-0);
}
.checkbox input { width: auto; accent-color: var(--ember); transform: scale(1.2); }

/* Buttons */
button {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  padding: 12px 20px;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
  letter-spacing: 0.02em;
}
button:active { transform: translateY(1px); }
button:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

.primary {
  background: var(--ember);
  color: var(--ink-0);
  width: 100%;
  padding: 14px 20px;
  font-size: 15px;
}
.primary:hover { background: var(--ember-dim); }
.primary:disabled { background: var(--paper-2); cursor: wait; }

.secondary {
  background: var(--ink-2);
  color: var(--paper-0);
  border-color: var(--ink-2);
}
.secondary:hover { background: var(--ink-0); border-color: var(--ember); }

.ghost {
  background: transparent;
  color: var(--paper-1);
  border-color: var(--ink-2);
  width: 100%;
  margin-top: 12px;
}
.ghost:hover { color: var(--paper-0); border-color: var(--paper-2); }

/* Result link box */
.link-box {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.link-box input {
  font-size: 13px;
  background: var(--ink-0);
}
.link-box button { flex-shrink: 0; }

.meta {
  font-size: 13px;
  color: var(--paper-1);
  margin: 0 0 16px;
}

/* Status messages */
.status {
  margin: 12px 0 0;
  font-size: 13px;
  min-height: 18px;
}
.status.error { color: var(--danger); }
.status.ok { color: var(--ok); }

.warning {
  color: var(--ember);
  font-size: 13px;
  margin-top: 16px;
  font-style: italic;
}

/* Revealed secret */
pre#secretText {
  background: var(--ink-0);
  border: 1px solid var(--ember-dim);
  border-radius: var(--radius);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper-0);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 400px;
  overflow-y: auto;
  margin: 0 0 12px;
  box-shadow: var(--shadow-glow);
}

/* Footer */
.foot {
  text-align: center;
  margin-top: 40px;
  color: var(--paper-2);
  font-size: 12px;
}
.foot p { margin: 4px 0; }
.foot a { color: var(--ember-dim); text-decoration: none; }
.foot a:hover { color: var(--ember); text-decoration: underline; }
.version { font-family: var(--font-mono); }

/* Small viewport */
@media (max-width: 480px) {
  .container { padding: 32px 16px 60px; }
  .card { padding: 20px; }
  .brand h1 { font-size: 26px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}