/* ════════════════════════════════════════════════════════════════════════
   Converter — styled on the Speda Mark VI / Heartbreaker FUI language.
   Steel-blue on near-black, liquid glass, restrained cold glow.
   ════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Rajdhani:wght@400;500;600;700&display=swap');

:root {
  --font-ui:   'Rajdhani', -apple-system, 'Segoe UI', sans-serif;
  --font-read: 'Inter', -apple-system, 'Segoe UI', sans-serif;

  --void:   #05070a;
  --base:   #080b10;
  --petrol: #0e1319;

  --accent-rgb:        127, 164, 196;   /* steel-blue */
  --accent:            #7fa4c4;
  --accent-bright:     #a9c6dc;
  --accent-bright-rgb: 169, 198, 220;
  --accent-dim:        #5b7691;

  --amber:         #d99c44;
  --amber-bright:  #f2b75c;
  --green:         #4fa377;
  --red:           #c84a3a;

  --text:       #dbe6ec;
  --text-dim:   #93a6b1;
  --text-faint: #5d6f7a;

  --line:        rgba(219, 230, 236, 0.08);
  --line-bright: rgba(var(--accent-rgb), 0.32);

  --glass-fill:    rgba(7, 11, 17, 0.46);
  --glass-tint:    rgba(230, 238, 246, 0.07);
  --glass-tint-2:  rgba(230, 238, 246, 0.02);
  --glass-tint-hi: rgba(230, 238, 246, 0.12);
  --glass-sheen:   linear-gradient(160deg, var(--glass-tint), var(--glass-tint-2));
  --glass-edge:        rgba(255, 255, 255, 0.10);
  --glass-edge-bright: rgba(var(--accent-rgb), 0.42);
  --glass-blur:    blur(30px) saturate(150%);
  --glass-shadow:        inset 0 1px 0 0 rgba(255,255,255,0.14), 0 20px 50px rgba(0,0,0,0.5);
  --glass-shadow-active: inset 0 1.5px 0 0 rgba(255,255,255,0.22), 0 20px 50px rgba(0,0,0,0.55);

  --r-island: 26px;
  --r-card:   22px;
  --r-ctl:    16px;
  --r-tile:   14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: var(--font-read);
  font-size: 0.95rem;
  color: var(--text);
  background:
    radial-gradient(1300px 900px at 50% -12%, rgba(var(--accent-rgb), 0.12), transparent 60%),
    linear-gradient(175deg, var(--void) 0%, var(--base) 45%, var(--petrol) 75%, var(--void) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 0.3rem; height: 0.3rem; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(var(--accent-rgb), 0.3); }
::selection { background: rgba(var(--accent-rgb), 0.3); color: #eafaff; }

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 56px 20px 80px;
}

/* ── Header ─────────────────────────────────────────────────────────── */
header { text-align: center; margin-bottom: 28px; }

.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent-dim);
}

h1 {
  font-family: var(--font-ui);
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #eef3f6;
  margin: 4px 0 6px;
  text-shadow: 0 0 18px rgba(var(--accent-rgb), 0.35);
}

.tagline {
  font-size: 0.8rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.logout {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  color: var(--text-faint);
  text-decoration: none;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: border-color 0.12s, color 0.12s;
}
.logout:hover { border-color: var(--line-bright); color: var(--text-dim); }

/* ── Glass panel base ───────────────────────────────────────────────── */
.panel {
  border-radius: var(--r-island);
  background: var(--glass-sheen), var(--glass-fill);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-edge);
  box-shadow: var(--glass-shadow);
  padding: 26px;
}

.field-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 8px;
}

input[type="url"] {
  width: 100%;
  padding: 15px 18px;
  border-radius: var(--r-ctl);
  border: 1px solid var(--line);
  background: rgba(5, 8, 12, 0.5);
  color: var(--text);
  font-family: var(--font-read);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}
input[type="url"]::placeholder { color: var(--text-faint); }
input[type="url"]:focus {
  border-color: var(--glass-edge-bright);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.14);
}

/* ── Preview ────────────────────────────────────────────────────────── */
.preview {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 14px;
  padding: 10px;
  border-radius: var(--r-tile);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.preview.hidden { display: none; }
.preview img {
  width: 96px;
  height: 54px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  flex-shrink: 0;
}
.preview-title {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.35;
  max-height: 2.7em;
  overflow: hidden;
}
.preview-sub {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-top: 4px;
}

/* ── Options ────────────────────────────────────────────────────────── */
.options {
  display: flex;
  gap: 16px;
  margin-top: 22px;
  flex-wrap: wrap;
}
.option-group { flex: 1; min-width: 160px; }

.toggle { display: flex; gap: 8px; }

.fmt-btn {
  flex: 1;
  padding: 11px 8px;
  border-radius: var(--r-ctl);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color 0.12s, background 0.12s, color 0.12s;
}
.fmt-btn:hover:not(.active) { border-color: var(--line-bright); color: var(--text); }
.fmt-btn.active {
  border-color: var(--glass-edge-bright);
  background:
    linear-gradient(rgba(var(--accent-rgb), 0.18), rgba(var(--accent-rgb), 0.18)),
    var(--glass-fill);
  color: var(--accent-bright);
  box-shadow: var(--glass-shadow-active);
}

select {
  width: 100%;
  padding: 11px 12px;
  border-radius: var(--r-ctl);
  border: 1px solid var(--line);
  background: rgba(5, 8, 12, 0.5);
  color: var(--text);
  font-family: var(--font-read);
  font-size: 0.85rem;
  outline: none;
}
select:focus { border-color: var(--glass-edge-bright); }

/* ── Convert CTA ────────────────────────────────────────────────────── */
button[type="submit"] {
  width: 100%;
  margin-top: 24px;
  padding: 15px;
  border: 1px solid rgba(var(--accent-bright-rgb), 0.5);
  border-radius: var(--r-ctl);
  background: linear-gradient(180deg, var(--accent-bright) 0%, var(--accent) 70%, var(--accent-dim) 100%);
  color: #0a1218;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: inset 0 1px 0 0 rgba(255,255,255,0.4), 0 12px 30px rgba(var(--accent-rgb), 0.28);
  transition: filter 0.12s, transform 0.08s;
}
button[type="submit"]:hover:not(:disabled) { filter: brightness(1.06); }
button[type="submit"]:active:not(:disabled) { transform: translateY(1px); }
button[type="submit"]:disabled { opacity: 0.4; cursor: default; }

/* ── Progress ───────────────────────────────────────────────────────── */
.progress-card { margin-top: 20px; }
.progress-card.hidden { display: none; }

.progress-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.progress-label #progress-pct { color: var(--accent-bright); }

.progress-bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent-bright));
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.6);
  transition: width 0.3s ease;
}

.download-btn {
  display: block;
  text-align: center;
  margin-top: 18px;
  padding: 13px;
  border-radius: var(--r-ctl);
  border: 1px solid rgba(79, 163, 119, 0.5);
  background: linear-gradient(rgba(79, 163, 119, 0.18), rgba(79, 163, 119, 0.18)), var(--glass-fill);
  color: #bfe9d2;
  text-decoration: none;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.download-btn.hidden { display: none; }
.download-btn:hover { border-color: rgba(79, 163, 119, 0.8); }

.error {
  margin-top: 14px;
  padding: 9px 13px;
  border-radius: var(--r-tile);
  border: 1px solid rgba(200, 74, 58, 0.4);
  background: rgba(200, 74, 58, 0.1);
  color: #e8a99e;
  font-size: 0.8rem;
}
.error.hidden { display: none; }

footer.foot {
  text-align: center;
  margin-top: 30px;
  font-family: var(--font-ui);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ── Login ──────────────────────────────────────────────────────────── */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  width: 100%;
  max-width: 340px;
  text-align: center;
  padding: 34px;
}
.login-card .eyebrow { margin-bottom: 2px; }
.login-card h1 { font-size: 1.4rem; margin-bottom: 4px; }
.login-card .subtitle {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.login-card input {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--r-ctl);
  border: 1px solid var(--line);
  background: rgba(5, 8, 12, 0.5);
  color: var(--text);
  margin-bottom: 14px;
  font-family: var(--font-read);
  font-size: 0.9rem;
  outline: none;
}
.login-card input:focus {
  border-color: var(--glass-edge-bright);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.14);
}
.login-card button {
  width: 100%;
  padding: 13px;
  border: 1px solid rgba(var(--accent-bright-rgb), 0.5);
  border-radius: var(--r-ctl);
  background: linear-gradient(180deg, var(--accent-bright) 0%, var(--accent) 70%, var(--accent-dim) 100%);
  color: #0a1218;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: inset 0 1px 0 0 rgba(255,255,255,0.4), 0 12px 30px rgba(var(--accent-rgb), 0.25);
}
.login-card .error {
  text-align: left;
  margin-bottom: 14px;
}