:root {
  --bg: #0A0612;
  --bg-card: #150A1F;
  --bg-input: #1E1428;
  --accent: #8B5CF6;
  --accent-hover: #7C3AED;
  --text-primary: #F8F8FF;
  --text-secondary: #B8A6D3;
  --text-tertiary: #7D6B9B;
  --divider: #2D1F3D;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --transition: 0.2s ease;
  --shadow: 0 4px 16px rgba(139, 92, 246, 0.12);
  --safe-area-inset-top: env(safe-area-inset-top);
  --safe-area-inset-right: env(safe-area-inset-right);
  --safe-area-inset-bottom: env(safe-area-inset-bottom);
  --safe-area-inset-left: env(safe-area-inset-left);
}

body.light-theme {
  --bg: #FAF8FF;
  --bg-card: #FFFFFF;
  --bg-input: #F3EFFF;
  --accent: #8B5CF6;
  --accent-hover: #7C3AED;
  --text-primary: #1A0B2E;
  --text-secondary: #4A3B5C;
  --text-tertiary: #7D6B9B;
  --divider: #E5DEFF;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --shadow: 0 4px 16px rgba(139, 92, 246, 0.08);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  padding-bottom: var(--safe-area-inset-bottom);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

p {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--divider);
  padding: calc(0.75rem + var(--safe-area-inset-top)) max(1rem, calc(1rem + var(--safe-area-inset-right))) 0.75rem max(1rem, calc(1rem + var(--safe-area-inset-left)));
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 3.5rem;
}

body.embedded .app-header {
  display: none;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 0.5rem;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}

.tab:active {
  transform: scale(0.97);
}

.tab.active {
  background: var(--accent);
  color: white;
}

.btn, .btn-primary, .btn-secondary, .btn-danger {
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background var(--transition), transform 0.1s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn:active, .btn-primary:active, .btn-secondary:active, .btn-danger:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

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

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

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

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

.btn-danger:hover {
  background: #DC2626;
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform 0.1s;
  flex-shrink: 0;
}

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

.btn-icon:active {
  transform: scale(0.95);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--divider);
  border-radius: 0.5rem;
  color: var(--text-primary);
  transition: border-color var(--transition), background var(--transition);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-tertiary);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg);
}

textarea {
  resize: vertical;
  min-height: 4rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--divider);
  border-radius: 0.75rem;
  padding: 1rem;
  transition: box-shadow var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
}

.toast {
  position: fixed;
  bottom: max(1rem, calc(1rem + var(--safe-area-inset-bottom)));
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--divider);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  max-width: calc(100vw - 2rem);
}

.toast.show {
  opacity: 1;
}

.toast.success {
  border-color: var(--success);
  color: var(--success);
}

.toast.error {
  border-color: var(--error);
  color: var(--error);
}

.toast.warning {
  border-color: var(--warning);
  color: var(--warning);
}

.install-banner {
  position: fixed;
  bottom: max(1rem, calc(1rem + var(--safe-area-inset-bottom)));
  left: max(1rem, calc(1rem + var(--safe-area-inset-left)));
  right: max(1rem, calc(1rem + var(--safe-area-inset-right)));
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 0.75rem;
  padding: 1rem;
  box-shadow: var(--shadow);
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.install-banner-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.install-banner-content {
  flex: 1;
}

.install-banner-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.install-banner-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.install-banner-close {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--divider);
  border-radius: 1rem;
  padding: 1.5rem;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    transform: scale(0.95);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.modal-body {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

@media (max-width: 640px) {
  .tabs {
    gap: 0.15rem;
  }
  .tab {
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* v29 typing-friendly fields: ≥16px prevents iOS zoom */
textarea.typing-field { font-size: 16px !important; line-height: 1.4; padding: .7rem .85rem; min-height: 48px; resize: none; overflow-y: auto; }