/* ── Base / Reset ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background var(--transition-normal), color var(--transition-normal);
}

a {
  color: var(--text-link);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
  font-size: inherit;
  color: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Override browser autofill background — inset box-shadow trick */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 9999px var(--bg-input) inset !important;
  -webkit-text-fill-color: var(--text-primary) !important;
  caret-color: var(--text-primary);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
}
.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--accent);
  color: var(--text-on-accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
}

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

.btn-danger {
  background: var(--danger);
  color: var(--text-on-accent);
}
.btn-danger:hover {
  background: var(--danger-hover);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.btn-icon:hover {
  background: var(--accent-light);
}

/* ── Utility ───────────────────────────────────────────── */
[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Background image layer */
#main-content {
  position: relative;
}
.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: opacity var(--transition-normal);
}

/* ── Toast notifications ─────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  color: #fff;
  background: var(--bg-tertiary, #333);
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .25s, transform .25s;
  cursor: pointer;
  max-width: 360px;
  word-break: break-word;
}
.toast--visible { opacity: 1; transform: translateY(0); }
.toast--success { background: #27ae60; }
.toast--error   { background: #e74c3c; }
.toast--info    { background: #2980b9; }