/* Light theme (default) — colorful, soft */
:root,
[data-theme="light"] {
  --bg: #eef2ff;
  --bg-accent: #e0e7ff;
  --surface: #ffffff;
  --surface-2: #f5f3ff;
  --border: #c7d2fe;
  --text: #1e1b4b;
  --muted: #6366a8;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-2: #ec4899;
  --success: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
  --shadow: 0 10px 40px rgba(99, 102, 241, 0.12);
  --nav-bg: rgba(255, 255, 255, 0.92);
  --input-bg: #f8fafc;
  --btn-secondary-bg: #e0e7ff;
  --btn-secondary-hover: #c7d2fe;
  --btn-ghost-hover: #eef2ff;
  --logo-grad: linear-gradient(135deg, #6366f1, #ec4899);
  --body-grad: linear-gradient(
    160deg,
    #eef2ff 0%,
    #fce7f3 35%,
    #e0f2fe 70%,
    #f5f3ff 100%
  );
  --focus-ring: rgba(99, 102, 241, 0.35);
  --toast-error-text: #991b1b;
  --toast-success-text: #065f46;
}

/* Dark theme — rich indigo/violet, not grey/black */
[data-theme="dark"] {
  --bg: #1e1b4b;
  --bg-accent: #312e81;
  --surface: #2d2a5e;
  --surface-2: #373472;
  --border: #4c4894;
  --text: #f5f3ff;
  --muted: #c4b5fd;
  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --accent-2: #f472b6;
  --success: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --nav-bg: rgba(30, 27, 75, 0.94);
  --input-bg: #252350;
  --btn-secondary-bg: #373472;
  --btn-secondary-hover: #4c4894;
  --btn-ghost-hover: #312e81;
  --logo-grad: linear-gradient(135deg, #818cf8, #f472b6);
  --body-grad: linear-gradient(
    160deg,
    #1e1b4b 0%,
    #312e81 40%,
    #4a1942 70%,
    #1e3a5f 100%
  );
  --focus-ring: rgba(129, 140, 248, 0.4);
  --toast-error-text: #fecaca;
  --toast-success-text: #bbf7d0;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  font-family: var(--font);
  background: var(--body-grad);
  background-color: var(--bg);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.5;
  transition: background 0.35s ease, color 0.25s ease;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  background: var(--logo-grad);
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  box-shadow: var(--shadow);
}

h1 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  background: var(--logo-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.875rem;
  -webkit-text-fill-color: initial;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.badge--ok {
  color: var(--success);
  border-color: rgba(5, 150, 105, 0.35);
  background: rgba(16, 185, 129, 0.12);
}

[data-theme="dark"] .badge--ok {
  background: rgba(52, 211, 153, 0.15);
}

.badge--warn {
  color: var(--warn);
  border-color: rgba(217, 119, 6, 0.35);
  background: rgba(251, 191, 36, 0.12);
}

.badge--pending {
  color: var(--muted);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.theme-toggle {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}

.theme-toggle:hover {
  transform: scale(1.03);
  border-color: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 800px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: var(--shadow);
  transition: background 0.3s, border-color 0.3s;
}

.panel-title {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
}

textarea,
input[type="password"],
input[type="text"] {
  width: 100%;
  font-family: inherit;
  font-size: 0.9rem;
  background: var(--input-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus,
input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.btn {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn--primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn--secondary {
  background: var(--btn-secondary-bg);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  background: var(--btn-secondary-hover);
}

.btn--ghost {
  background: var(--surface);
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: var(--btn-ghost-hover);
  color: var(--text);
}

.fields {
  font-size: 0.8rem;
  color: var(--muted);
  min-height: 1.25rem;
}

.fields strong {
  color: var(--text);
}

.hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0.5rem 0;
}

.hint code {
  background: var(--surface-2);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.7rem;
  color: var(--accent);
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  font-size: 0.875rem;
  box-shadow: var(--shadow);
  z-index: 100;
  color: var(--text);
}

.toast--error {
  border-color: rgba(220, 38, 38, 0.45);
  color: var(--toast-error-text);
  background: #fef2f2;
}

[data-theme="dark"] .toast--error {
  background: #450a0a;
}

.toast--success {
  border-color: rgba(5, 150, 105, 0.45);
  color: var(--toast-success-text);
  background: #ecfdf5;
}

[data-theme="dark"] .toast--success {
  background: #064e3b;
}