/* WebP Converter — Teal Dark */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #14B8A6;
  --primary-dim: rgba(20,184,166,0.12);
  --primary-glow: rgba(20,184,166,0.25);
  --accent: #8B5CF6;
  --accent-dim: rgba(139,92,246,0.12);
  --green: #10B981;
  --red: #EF4444;
  --bg: #0A1118;
  --bg-card: #111B27;
  --border: rgba(20,184,166,0.10);
  --text: #E0F2F1;
  --text-dim: #80CBC4;
  --text-muted: #4A6B66;
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 0.2s ease;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.6; }

.header { border-bottom: 1px solid var(--border); background: rgba(17,27,39,0.95); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 10; }
.header-inner { max-width: 750px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; }
.header-left { display: flex; align-items: center; gap: 10px; }
.header-actions { display: flex; gap: 6px; }
.logo-icon { font-size: 1.2rem; width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--primary-dim); border-radius: var(--radius-sm); }
.header h1 { font-size: 1.05rem; font-weight: 700; }
.subtitle { font-size: 0.72rem; color: var(--text-dim); }

.main { max-width: 750px; margin: 0 auto; padding: 20px; }

.btn { padding: 8px 16px; font-family: var(--font); font-size: 0.78rem; font-weight: 600; border: none; border-radius: 6px; cursor: pointer; transition: all var(--transition); }
.btn-sm { padding: 5px 10px; font-size: 0.72rem; background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(20,184,166,0.2); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #0D9488); color: #fff; }

.controls-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; margin-bottom: 12px; }
.controls-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ctrl-label { font-size: 0.68rem; color: var(--text-muted); }
.ctrl-select { padding: 5px 8px; font-family: var(--font); font-size: 0.72rem; color: var(--primary); background: var(--bg); border: 1px solid var(--border); border-radius: 4px; outline: none; cursor: pointer; }
.slider { flex: 1; min-width: 80px; accent-color: var(--primary); }
.quality-val { font-family: var(--mono); font-size: 0.68rem; color: var(--text-dim); min-width: 30px; }

.drop-zone { padding: 28px; text-align: center; border: 2px dashed rgba(20,184,166,0.2); border-radius: var(--radius); margin-bottom: 14px; cursor: pointer; transition: all var(--transition); }
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--primary); background: rgba(20,184,166,0.04); }
.drop-title { font-size: 0.9rem; font-weight: 600; margin-bottom: 4px; }
.drop-hint { font-size: 0.72rem; color: var(--text-muted); }

.results { display: flex; flex-direction: column; gap: 8px; }
.result-row { display: flex; align-items: center; gap: 10px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 12px; }
.result-thumb { width: 48px; height: 48px; border-radius: 6px; object-fit: cover; background: rgba(0,0,0,0.2); }
.result-info { flex: 1; }
.result-name { font-size: 0.75rem; font-weight: 600; }
.result-meta { font-size: 0.62rem; color: var(--text-muted); }
.result-sizes { display: flex; align-items: center; gap: 6px; }
.result-original { font-family: var(--mono); font-size: 0.68rem; color: var(--text-muted); text-decoration: line-through; }
.result-new { font-family: var(--mono); font-size: 0.72rem; font-weight: 600; color: var(--green); }
.result-saving { font-size: 0.62rem; padding: 1px 5px; border-radius: 3px; }
.saving-good { background: rgba(16,185,129,0.15); color: var(--green); }
.saving-bad { background: rgba(239,68,68,0.15); color: var(--red); }
.result-download { padding: 4px 8px; font-size: 0.68rem; font-weight: 600; background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(20,184,166,0.2); border-radius: 4px; cursor: pointer; font-family: var(--font); transition: all var(--transition); }

.empty-state { padding: 24px; text-align: center; font-size: 0.82rem; color: var(--text-muted); }

.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column-reverse; gap: 8px; }
.toast { padding: 10px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: 0 4px 24px rgba(0,0,0,0.5); font-size: 0.82rem; animation: toastIn 0.3s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }