:root {
  --bg: #030816;
  --bg-elevated: #071021;
  --bg-soft: #0b1730;
  --border-subtle: #1e2b46;
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.18);
  --danger: #f97373;
  --text-main: #e5edff;
  --text-muted: #9ca9c8;
  --shadow-soft: 0 18px 40px rgba(3, 8, 22, 0.9);
}

body.light {
  --bg: #e8f0ff;
  --bg-elevated: #ffffff;
  --bg-soft: #f2f5ff;
  --border-subtle: #c1cbea;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.14);
  --danger: #e11d48;
  --text-main: #0b1020;
  --text-muted: #66708f;
  --shadow-soft: 0 12px 32px rgba(15, 23, 42, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, sans-serif;
  background: radial-gradient(circle at top, #112143 0, var(--bg) 55%);
  color: var(--text-main);
  min-height: 100vh;
}

/* HEADER */
header {
  padding: 16px 20px;
  background: radial-gradient(circle at 0 0, #123061 0, var(--bg-elevated) 55%);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.species-icon {
  width: 20px;
  height: 20px;
}

.species-icon svg {
  width: 20px;
  height: 20px;
}

/* CARD PANEL */
.card-panel {
  background: radial-gradient(circle at top left, #132857 0, var(--bg-elevated) 60%);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

/* FORM / INPUTS */
input, select, button {
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-soft);
  color: var(--text-main);
  font-size: 14px;
}

button {
  cursor: pointer;
  background: var(--accent);
  color: white;
  border: none;
}

button:hover {
  opacity: 0.9;
}

button.danger {
  background: var(--danger);
  color: white;
}

/* ADMIN PANEL */
#admin-section {
  animation: fadeIn 0.3s ease forwards;
}

/* CARD PREVIEW */
.card-preview {
  position: relative;
  width: 320px;
  height: 200px;
  border-radius: 18px;
  overflow: hidden;
  padding: 18px 20px;
  color: #eaf1ff;
  background:
    radial-gradient(circle at top left, rgba(59,130,246,0.9), transparent 60%),
    radial-gradient(circle at bottom right, rgba(37,99,235,0.95), transparent 55%),
    linear-gradient(145deg, #020617, #0b1730);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(148, 163, 184, 0.55);
}

.card-preview::before {
  content: "";
  position: absolute;
  inset: -40%;
  background-image: linear-gradient(
    120deg,
    rgba(255,255,255,0.12) 0%,
    transparent 20%,
    transparent 80%,
    rgba(255,255,255,0.08) 100%
  );
  opacity: 0.45;
  mix-blend-mode: screen;
}

.card-logo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.card-chip {
  width: 32px;
  height: 24px;
  border-radius: 6px;
  border: 1px solid rgba(226, 232, 240, 0.85);
  background: radial-gradient(circle at 0 0, rgba(255,255,255,0.98), rgba(148,163,184,0.75));
}

.card-number {
  margin-top: 32px;
  font-size: 20px;
  letter-spacing: 0.24em;
  font-variant-numeric: tabular-nums;
}

.card-bottom-row {
  margin-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.card-holder-label {
  font-size: 10px;
  opacity: 0.7;
}

.card-holder {
  font-size: 14px;
}

.card-llama-mark {
  position: absolute;
  right: 18px;
  top: 64px;
  width: 52px;
  height: 52px;
  border-radius: 999px;
  border: 1px solid rgba(191, 219, 254, 0.95);
  background: radial-gradient(circle at 30% 20%, rgba(239,246,255,0.96), rgba(129,140,248,0.7));
}