/* Dark by default (this is a tool people open at 2am) with a light scheme for
   anyone whose OS asks for one. */

:root {
  color-scheme: dark light;
  --bg: #0b1016;
  --surface: #141c26;
  --surface-2: #1b2634;
  --line: #24313f;
  --text: #e8eef5;
  --muted: #8ba0b6;
  /* Indigo, not the #1d9bf0 this started as: that is X's blue, and the site is
     no longer an X tool. Matches the folded corner in the logo. */
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-ink: #ffffff;
  --danger: #f4576b;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 8px 24px rgb(0 0 0 / 0.25);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f8fb;
    --surface: #ffffff;
    --surface-2: #eef3f8;
    --line: #dae3ec;
    --text: #0f1922;
    --muted: #5b6b7c;
    --shadow: 0 1px 2px rgb(15 25 34 / 0.06), 0 8px 24px rgb(15 25 34 / 0.08);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: clamp(1.5rem, 5vw, 4rem) 1.25rem 3rem;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main { max-width: 44rem; margin: 0 auto; }

/* ---- masthead ---- */

.masthead { text-align: center; margin-bottom: 2rem; }
.logo { display: block; margin: 0 auto 0.75rem; border-radius: 12px; }

h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  letter-spacing: -0.02em;
}

/* Wordmark reads as three words at one glance without needing three colours. */
.wordmark span { color: var(--muted); }

.tagline { margin: 0; color: var(--muted); }

/* ---- form ---- */

.field { display: flex; gap: 0.5rem; }

input[type="text"] {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"]::placeholder { color: var(--muted); opacity: 0.7; }

input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(99 102 241 / 0.28);
}

button {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background 0.15s, transform 0.05s, opacity 0.15s;
}

button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: 0.55; cursor: default; }

#submit {
  flex: 0 0 auto;
  padding: 0.85rem 1.35rem;
  color: var(--accent-ink);
  background: var(--accent);
}

#submit:hover:not(:disabled) { background: var(--accent-hover); }

.hint { margin: 0.6rem 0.25rem 0; font-size: 0.85rem; color: var(--muted); }

/* ---- messages ---- */

.message {
  margin: 1.5rem 0 0;
  padding: 0.9rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--muted);
  border-radius: 10px;
}

.message.error { border-left-color: var(--danger); }
.message.busy { border-left-color: var(--accent); }

/* ---- results ---- */

.results { margin-top: 1.75rem; display: grid; gap: 1rem; }

.card {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1.1rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

@media (max-width: 30rem) {
  .card { grid-template-columns: 1fr; }
}

.preview { position: relative; }

.thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--surface-2);
  border-radius: 10px;
}

.thumb.placeholder { background: var(--surface-2); }

.badge {
  position: absolute;
  left: 0.5rem;
  bottom: 0.5rem;
  padding: 0.15rem 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
  background: rgb(0 0 0 / 0.72);
  border-radius: 999px;
}

.options { display: flex; flex-direction: column; gap: 0.7rem; min-width: 0; }

.meta { margin: 0; font-size: 0.85rem; color: var(--muted); }

.qualities { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.quality {
  padding: 0.55rem 0.9rem;
  color: var(--text);
  background: var(--surface-2);
  border-color: var(--line);
}

.quality:hover:not(:disabled) { background: var(--accent); color: var(--accent-ink); }

.quality .size { font-weight: 400; opacity: 0.7; margin-left: 0.35rem; }

/* ---- download progress ---- */

.bar {
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: inherit;
  transition: width 0.15s linear;
}

.bar.indeterminate span {
  width: 35%;
  animation: slide 1.1s ease-in-out infinite;
}

@keyframes slide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}

.progress-label { margin: 0.4rem 0 0; font-size: 0.8rem; color: var(--muted); }

/* ---- footer ---- */

footer {
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

footer p { margin: 0.4rem 0; }
footer a { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}