/* Theme tokens */
:root {
  /* Dark theme (purple, lighter boxes) */
  --bg: #130a22;
  --bg-grad1: rgba(167, 139, 250, 0.28);
  --bg-grad2: rgba(244, 114, 182, 0.22);
  --panel: #231942; /* simple solid for dark panels */
  --card: #2d2350;  /* simple solid for dark cards */
  --text: #efeaff;
  --muted: #bdb1df;
  --primary: #b794f4;
  --primary-strong: #7c3aed;
  --accent: #f472b6;
  --danger: #ff6b6b;
  --border: #3a2c4d;
  --glass-blur: 0;
  --glass-shadow: none;
}
[data-theme="light"] {
  /* Light theme (green) */
  --bg: #e4f7ec; /* more green */
  --bg-grad1: rgba(124, 245, 166, 0.38); /* mint stronger */
  --bg-grad2: rgba(62, 201, 151, 0.28);  /* teal stronger */
  --panel: linear-gradient(135deg, #e4f7ec 60%, #c6f6d5 100%);
  --card: linear-gradient(135deg, #ffffff 60%, #d1fae5 100%);
  --text: #16222f;
  --muted: #506174;
  --primary: #10b981; /* emerald brighter */
  --primary-strong: #0a966a;
  --accent: #2f9e44; /* deeper green */
  --danger: #e03131;
  --border: #bfead5;
  --glass-blur: 0;
  --glass-shadow: none;
}

/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 10% 10%, var(--bg-grad1), transparent 60%),
              radial-gradient(1200px 800px at 90% 0%, var(--bg-grad2), transparent 60%),
              var(--bg);
  color: var(--text);
  transition: background 300ms ease, color 300ms ease;
}

/* Header */
.app-header { padding: 24px 20px 8px; border-bottom: 1px solid var(--border); background: var(--panel); backdrop-filter: blur(var(--glass-blur)); position: sticky; top: 0; z-index: 10; box-shadow: var(--glass-shadow); }
.brand { display: flex; align-items: center; gap: 10px; }
.brand h1 { font-size: 20px; margin: 0; letter-spacing: 0.3px; }
.header-right { display:flex; align-items: center; gap: 16px; justify-content: space-between; flex-wrap: wrap; }
.tagline { color: var(--muted); margin: 6px 0 0; font-size: 14px; }
.theme-toggle { display:flex; gap: 6px; background: var(--panel); padding: 6px; border-radius: 999px; border: 1px solid var(--border); backdrop-filter: blur(var(--glass-blur)); }
.pill { background: transparent; color: var(--muted); border: none; padding: 6px 10px; border-radius: 999px; cursor: pointer; font-weight: 600; }
.pill.active { background: rgba(92,200,255,0.18); color: var(--text); border: 1px solid rgba(92,200,255,0.35); }

/* Layout */
.container { max-width: 980px; margin: 20px auto; padding: 0 16px; }
.hero { margin: 12px 0 6px; }
.hero-logo {
  display:flex; align-items:center; justify-content:center;
  height: clamp(120px, 22vw, 200px);
  position: relative; overflow: hidden;
  border-radius: 24px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02)) , var(--card);
  backdrop-filter: blur(calc(var(--glass-blur) * 1.2));
  border: 1px solid var(--border);
  box-shadow: var(--glass-shadow);
}
.hero-logo::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at -10% -10%, rgba(255,255,255,0.22), transparent 60%),
    radial-gradient(100% 70% at 110% -10%, rgba(255,255,255,0.12), transparent 60%);
  pointer-events: none;
}
.hero-logo img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: 16px; filter: drop-shadow(0 6px 14px rgba(0,0,0,0.25)); }
.tabs { display: flex; gap: 8px; background: var(--panel); padding: 8px; border-radius: 12px; border: 1px solid var(--border); position: sticky; top: 72px; z-index: 9; backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }
.tab { flex: 1; background: transparent; color: var(--muted); border: none; padding: 10px 12px; border-radius: 8px; cursor: pointer; font-weight: 600; }
.tab.active { background: linear-gradient(180deg, rgba(92,200,255,0.16), rgba(92,200,255,0.06)); color: var(--text); border: 1px solid rgba(92,200,255,0.3); }
.panel { margin-top: 14px; display: none; }
.panel.active { display: block; }

.advanced { margin: 10px 0; }
.advanced summary { cursor: pointer; color: var(--muted); margin: 6px 0; }
.advanced[open] summary { color: var(--text); }

.mode-toggle { display: inline-flex; gap: 8px; margin: 8px 0 12px; background: var(--panel); border: 1px solid var(--border); padding: 6px; border-radius: 999px; backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }
.mode { background: transparent; color: var(--muted); border: none; padding: 8px 12px; border-radius: 999px; cursor: pointer; font-weight: 600; }
.mode.active { background: rgba(124,245,166,0.1); color: var(--text); border: 1px solid rgba(124,245,166,0.3); }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 12px; margin: 10px 0; backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }
.label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
textarea { width: 100%; min-height: 120px; background: #0d141e; color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 12px; resize: vertical; transition: border-color 180ms ease, background 180ms ease; }
input[type="file"], input[type="text"], input[type="number"], input[type="password"], input[type="search"], input:not([type]) { width: 100%; background: #0d141e; color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 10px; transition: border-color 180ms ease, background 180ms ease; }
body[data-theme="light"] textarea, body[data-theme="light"] input { background: rgba(255,255,255,0.6); }
input#codeInput { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 18px; letter-spacing: 4px; text-align: center; }

.actions { margin: 16px 0 8px; display: flex; gap: 8px; }
.primary { background: linear-gradient(180deg, var(--primary-strong), var(--primary)); color: #00121f; border: none; padding: 10px 14px; border-radius: 12px; font-weight: 700; cursor: pointer; transform: translateY(0); transition: transform 120ms ease, filter 120ms ease, box-shadow 120ms ease; box-shadow: 0 6px 16px rgba(27, 143, 255, 0.25); }
.primary:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 10px 20px rgba(27, 143, 255, 0.28); }

.result { background: var(--card); border: 1px dashed var(--border); border-radius: 16px; padding: 12px; backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }
.result p { margin: 6px 0; }
.result code {
  background: var(--primary);
  color: #fff;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 1.25em;
  font-family: inherit;
  letter-spacing: 2px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.10);
  transition: background 200ms, color 200ms;
}
[data-theme="light"] .result code {
  background: var(--primary-strong);
  color: #fff;
}

.disclaimer {
  margin-top: 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 6px 10px;
  font-size: 0.85em;
  line-height: 1.5;
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--glass-shadow);
}

.app-footer { color: var(--muted); text-align: center; padding: 18px; border-top: 1px solid var(--border); margin-top: 20px; background: var(--panel); backdrop-filter: blur(var(--glass-blur)); box-shadow: var(--glass-shadow); }

.dropzone { outline: 2px dashed currentColor; color: var(--accent); outline-offset: -6px; }
.dropzone.dragover { outline-color: var(--accent); background: rgba(124,245,166,0.1); }

.hidden { display: none !important; }

/* Animations */
.panel.active .card { animation: rise 300ms ease both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}