*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #fff;
  --bg-2: #f8f8f8;
  --text: #111;
  --text-2: #444;
  --text-3: #888;
  --border: #e5e5e5;
  --accent: #2563eb;
  --radius: 8px;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Top nav */
.top-nav {
  padding: 16px 40px;
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.top-nav a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 14px;
}

.top-nav a:hover { color: var(--text); }

/* Main */
main {
  max-width: 860px;
  margin: auto;
  padding: 0 40px 80px;
}

/* Page header */
.page-header {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.page-desc {
  color: var(--text-2);
  font-size: 15px;
}

/* Demo sections */
.demo-section {
  margin-bottom: 52px;
}

.demo-section h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.demo-desc {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 20px;
}

.demo-desc code {
  font-family: 'Menlo', 'Monaco', monospace;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 12px;
}

/* Trigger buttons */
.trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  transition: opacity 0.15s ease;
}

.trigger-btn:hover { opacity: 0.85; }

/* Toast trigger variants */
.toast-triggers {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.toast-btn { background: #fff; border: 1px solid var(--border); color: var(--text); }
.toast-btn.success { border-left: 3px solid #16a34a; }
.toast-btn.error   { border-left: 3px solid #dc2626; }
.toast-btn.warning { border-left: 3px solid #d97706; }
.toast-btn.info    { border-left: 3px solid #2563eb; }
.toast-btn:hover   { background: var(--bg-2); opacity: 1; }

/* ── Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-backdrop.is-open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  max-width: 440px;
  width: calc(100% - 40px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
  transform: scale(0.96) translateY(6px);
  transition: transform 0.22s ease, opacity 0.22s ease;
  opacity: 0;
}

.modal-backdrop.is-open .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.modal p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.btn {
  border-radius: 7px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  padding: 9px 20px;
  border: none;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.btn-ghost {
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: #ebebeb; }

.btn-primary {
  background: var(--text);
  color: #fff;
}

.btn-primary:hover { opacity: 0.85; }

/* ── Toast ── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 16px;
  min-width: 280px;
  max-width: 360px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  pointer-events: all;
  transform: translateX(calc(100% + 24px));
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast.is-visible {
  transform: translateX(0);
  opacity: 1;
}

.toast.is-leaving {
  transform: translateX(calc(100% + 24px));
  opacity: 0;
}

.toast-icon {
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1.5;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 1px;
}

.toast-msg {
  font-size: 12px;
  color: var(--text-3);
}

.toast-dismiss {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-3);
  font-size: 16px;
  line-height: 1;
  padding: 0 2px;
  flex-shrink: 0;
}

.toast-dismiss:hover { color: var(--text); }

/* Toast types */
.toast-success { border-left: 3px solid #16a34a; }
.toast-error   { border-left: 3px solid #dc2626; }
.toast-warning { border-left: 3px solid #d97706; }
.toast-info    { border-left: 3px solid #2563eb; }

.toast-success .toast-icon { color: #16a34a; }
.toast-error   .toast-icon { color: #dc2626; }
.toast-warning .toast-icon { color: #d97706; }
.toast-info    .toast-icon { color: #2563eb; }

/* ── Drawer ── */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.drawer-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 320px;
  background: #fff;
  z-index: 201;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.drawer.is-open { transform: translateX(0); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
}

.drawer-title {
  font-size: 15px;
  font-weight: 600;
}

.drawer-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 22px;
  color: var(--text-3);
  line-height: 1;
  padding: 0 4px;
}

.drawer-close:hover { color: var(--text); }

.drawer-body {
  flex: 1;
  padding: 24px 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
}

.form-group input[type="text"],
.form-group input[type="email"] {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-group input:focus { border-color: var(--accent); }

/* Toggle */
.toggle-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  flex-direction: row !important;
  gap: 0 !important;
}

.toggle-label span:first-child {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
}

.toggle-label input[type="checkbox"] {
  display: none;
}

.toggle-track {
  width: 36px;
  height: 20px;
  background: #d1d5db;
  border-radius: 10px;
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.toggle-track::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-label input:checked + .toggle-track {
  background: #111;
}

.toggle-label input:checked + .toggle-track::after {
  transform: translateX(16px);
}

.toggle-label input:disabled + .toggle-track {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Mobile */
@media (max-width: 640px) {
  .top-nav { padding: 16px 20px; }
  main { padding: 0 20px 60px; }
  .page-header { padding-top: 32px; }
  .page-header h1 { font-size: 22px; }
  .drawer { width: 100%; }
  .toast { min-width: 240px; }
}