/* Theme tokens are in theme-tokens.css */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-system);
  background: var(--color-bg);
  color: var(--color-label);
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-overflow-scrolling: touch;
}

body {
  display: flex;
  flex-direction: column;
}

/* ─── Hidden Native Scrollbar ─── */
::-webkit-scrollbar { display: none; }
* { scrollbar-width: none; }

/* ─── Custom Overlay Scrollbar (fixed, zero layout impact) ─── */
.scrollbar-track {
  position: fixed;
  top: 0;
  right: 2px;
  bottom: 0;
  width: 0;
  z-index: 100;
  pointer-events: none;
  overflow: visible;
}
.scrollbar-thumb {
  position: absolute;
  right: 0;
  width: 4px;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: background 0.25s ease;
  pointer-events: none;
}
.scrollbar-thumb.visible {
  background: var(--color-separator);
}
.dark .scrollbar-thumb.visible {
  background: var(--color-separator);
}

/* ─── Safe Area Utilities ─── */
/*
.pt-safe {
  padding-top: env(safe-area-inset-top, 0px);
}
*/
.pb-safe {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.pb-safe-nav {
  padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
}

/* ─── iOS Header ─── */
.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid var(--color-separator);
  padding-top: 0;
  transition: background 0.3s;
}
.dark .app-header {
  background: rgba(28,28,30,0.85);
}

/* ─── Header data-mode display ─── */
.header-contents {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  padding: 0 16px;
  position: relative;
}
.header-title-large {
  display: none;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.37px;
  line-height: 1.1;
  color: var(--color-label);
  flex: 1;
  text-align: left;
}
.header-title-inline {
  display: none;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.41px;
  color: var(--color-label);
}
.header-left {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 17px;
  color: var(--color-primary);
}
.header-left a.link {
  display: inline-flex;
  align-items: center;
}
.header-right {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

/* ─── Theme Toggle ─── */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--color-tertiary-label);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  -webkit-tap-highlight-color: transparent;
}
.theme-toggle:active {
  transform: scale(0.85);
}
.theme-icon-dark { display: none; }
.dark .theme-icon-light { display: none; }
.dark .theme-icon-dark { display: block; }

/* Large title mode */
header[data-mode="large-title"] .header-contents {
  height: 96px;
  align-items: flex-end;
  padding-bottom: 8px;
}
header[data-mode="large-title"] .header-title-large {
  display: block;
}
header[data-mode="large-title"] .header-title-inline {
  display: none;
}
header[data-mode="large-title"] .header-left {
  top: auto;
  bottom: 8px;
  transform: none;
}
header[data-mode="large-title"] .header-right {
  top: auto;
  bottom: 8px;
  transform: none;
}

/* Inline title mode */
header[data-mode="inline"] .header-title-large {
  display: none;
}
header[data-mode="inline"] .header-title-inline {
  display: block;
}

/* Hidden mode */
header[data-mode="hidden"] {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;
}
header[data-mode="hidden"] .header-contents {
  display: none;
}
header[data-mode="hidden"] .theme-toggle {
  display: none;
}

/* Spacer */
.pt-safe-spacer {
  display: none;
}
.pt-safe-spacer[data-mode="large-title"] {
  display: block;
  height: 96px;
}
.pt-safe-spacer[data-mode="inline"] {
  display: block;
  height: 48px;
}

/* Left/right slots */
.header-left {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 17px;
  color: var(--color-primary);
  z-index: 2;
}
.header-right {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

/* ─── iOS Main Content Area ─── */
.app-main {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* ─── iOS Tab Bar ─── */
.app-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255,255,255,0.90);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-top: 0.5px solid var(--color-separator);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  height: calc(64px + env(safe-area-inset-bottom, 0px));
}
.dark .app-nav {
  background: rgba(28,28,30,0.90);
}
.nav-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-around;
  height: 64px;
  padding-top: 6px;
  max-width: 500px;
  margin: 0 auto;
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  width: 64px;
  height: 48px;
  text-decoration: none;
  color: var(--color-tertiary-label);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2px;
  transition: color 0.15s;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}
.nav-item.active {
  color: var(--color-primary);
}
.nav-item svg {
  width: 26px;
  height: 26px;
}
.nav-item span {
  font-size: 10px;
  font-weight: 500;
}

/* Scan FAB in tab bar */
.nav-scan-btn {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-2xl);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -16px;
  box-shadow: 0 4px 12px rgba(8,145,178,0.35);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s;
  text-decoration: none;
}
.nav-scan-btn:active {
  transform: scale(0.92);
}
.nav-scan-btn svg {
  width: 26px;
  height: 26px;
  color: white;
}

/* ─── Inset Grouped List (iOS Settings style) ─── */
.inset-grouped {
  padding: 8px 16px;
}
.inset-grouped:first-child {
  padding-top: 16px;
}
.grouped-section {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  isolation: isolate;
  margin-bottom: 20px;
}
.grouped-section-header {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-secondary-label);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 16px 6px;
  margin-top: 8px;
}
.grouped-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  min-height: 44px;
  text-decoration: none;
  color: var(--color-label);
  background: var(--color-card);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s;
}
.grouped-item:active {
  background: var(--color-separator);
}
.grouped-item:not(:last-child) {
  border-bottom: 0.5px solid var(--color-separator);
}
.grouped-item-label {
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.2px;
}
.grouped-item-value {
  font-size: 16px;
  font-weight: 400;
  color: var(--color-tertiary-label);
  display: flex;
  align-items: center;
  gap: 6px;
}
.grouped-item-chevron {
  width: 14px;
  height: 14px;
  color: var(--color-opaque-separator);
}
.grouped-item-destructive {
  color: var(--color-destructive);
  font-weight: 500;
}

/* ─── Container / Card Variants ─── */
.container-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-separator);
}
.container-card-sm {
  background: var(--color-card);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-separator);
}
.container-card-flat {
  background: var(--color-card);
  border-bottom: 0.5px solid var(--color-separator);
}
.container-elevated {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: none;
}
.container-transparent {
  background: transparent;
  border: none;
  box-shadow: none;
}
.form-group-transparent {
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

/* ─── iOS Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.41px;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.15s;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  text-align: center;
}
.btn:active {
  transform: scale(0.97);
  opacity: 0.8;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 12px 28px;
  box-shadow: 0 2px 8px rgba(8,145,178,0.25);
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  padding: 12px 28px;
}
.btn-ghost:active {
  background: var(--color-primary-light);
  opacity: 1;
}
.btn-destructive {
  color: var(--color-destructive);
  background: transparent;
  padding: 12px 28px;
}
.btn-destructive:active {
  background: rgba(255,59,48,0.1);
  opacity: 1;
}
.btn-block {
  display: flex;
  width: 100%;
}

/* ─── Links ─── */
.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.15s;
  cursor: pointer;
}
.link:hover { opacity: 0.8; }
.link-muted { color: var(--color-secondary-label); }
.link-destructive { color: var(--color-destructive); }
.link-chevron {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.link-chevron::after {
  content: '›';
  font-size: 1.2em;
  line-height: 1;
}

/* ─── iOS Form Elements ─── */
.form-group {
  margin-bottom: 20px;
}
.form-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-secondary-label);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  display: block;
  padding: 0 16px;
}
.form-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: -0.2px;
  color: var(--color-label);
  background: var(--color-system-background);
  border: none;
  border-radius: 0;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-input::placeholder {
  color: var(--color-tertiary-label);
}
.form-input:focus {
  background: var(--color-system-background);
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type=number] {
  -moz-appearance: textfield;
  appearance: none;
}
textarea.form-input {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-system);
}
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: -0.2px;
  color: var(--color-label);
  background: var(--color-system-background);
  border: none;
  border-radius: 0;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
.select-wrapper {
  position: relative;
}
.select-wrapper::after {
  content: '›';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  font-size: 18px;
  color: var(--color-tertiary-label);
  pointer-events: none;
  line-height: 1;
}

/* ─── Checkbox & Radio ─── */
.form-checkbox, .form-radio {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 16px;
  color: var(--color-label);
  -webkit-tap-highlight-color: transparent;
}
.form-checkbox input, .form-radio input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.form-checkbox-box {
  width: 22px;
  height: 22px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-opaque-separator);
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.form-checkbox input:checked + .form-checkbox-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.form-checkbox-box::after {
  content: '';
  width: 6px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  opacity: 0;
  transition: opacity 0.15s;
}
.form-checkbox input:checked + .form-checkbox-box::after {
  opacity: 1;
}
.form-checkbox-box::after {
content: '';
width: 3px;
height: 7px;
border-color: var(--color-bg);
}
.form-radio-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--color-opaque-separator);
  background: var(--color-card);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}
.form-radio input:checked + .form-radio-circle {
  border-color: var(--color-primary);
}
.form-radio-circle::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity 0.15s;
}
.form-radio input:checked + .form-radio-circle::after {
  opacity: 1;
}

/* Inset grouped form field (inside grouped-section) */
.grouped-field {
  padding: 0;
  display: flex;
  flex-direction: column;
}
.grouped-field .form-input {
  padding: 14px 16px;
}
.grouped-field:not(:last-child) {
  border-bottom: 0.5px solid var(--color-separator);
}
.grouped-field .form-label {
  padding: 12px 16px 4px;
  margin-bottom: 0;
}

/* ─── Toast ─── */
.toast-container {
  position: fixed;
  bottom: calc(80px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
  max-width: 90%;
}
.toast {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.08);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  pointer-events: auto;
  animation: toastIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 360px;
  border: 0.5px solid var(--color-separator);
  color: var(--color-label);
}
.toast-error {
  background: var(--color-destructive);
  color: white;
  border: none;
}
.toast-success {
  background: var(--color-primary);
  color: white;
  border: none;
}
.toast-leaving {
  animation: toastOut 0.25s ease-in forwards;
}

/* ─── Animations ─── */
@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(20px) scale(0.95); }
}
@keyframes pageSlideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes checkmarkBounce {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.15); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes confettiFall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}
@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(8,145,178,0.4); }
  70% { box-shadow: 0 0 0 20px rgba(8,145,178,0); }
  100% { box-shadow: 0 0 0 0 rgba(8,145,178,0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.anim-slide-up {
  animation: pageSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.anim-fade-in {
  animation: fadeIn 0.3s ease-out;
}
.anim-checkmark {
  animation: checkmarkBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
.anim-pulse {
  animation: pulseRing 2s infinite;
}

/* ─── Capture Screen ─── */
.capture-container {
  position: relative;
  width: 100%;
  height: 100%;
  background: #000;
  overflow: hidden;
}
.capture-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.capture-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 0 24px calc(100px + env(safe-area-inset-bottom, 0px));
  pointer-events: none;
}
.capture-frame {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -55%);
  width: 220px;
  height: 220px;
  border: 2px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-xl);
  pointer-events: none;
}
.capture-frame::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  border: 2px solid rgba(8,145,178,0.3);
  animation: pulseRing 3s infinite;
}
.capture-btn {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.15);
  cursor: pointer;
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  z-index: 2;
}
.capture-btn:active {
  transform: scale(0.9);
}
.capture-btn-inner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: white;
  transition: background 0.15s;
}
.capture-btn:active .capture-btn-inner {
  background: #ddd;
}
.capture-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.capture-gps-pill {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: white;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  pointer-events: none;
  white-space: nowrap;
}
.capture-gps-pill.locked {
  color: var(--color-success);
}

/* ─── Landing Page ─── */
.landing-hero {
  position: relative;
  width: 100%;
  height: 360px;
  overflow: hidden;
}
.landing-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.landing-hero-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 0%, var(--color-bg) 100%);
  pointer-events: none;
}
.landing-hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 24px 32px;
}
.landing-hero-content h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-landing-hero-text);
  letter-spacing: 0.37px;
  line-height: 1.1;
}
.landing-hero-content p {
  font-size: 15px;
  color: var(--color-landing-hero-subtext);
  margin-top: 4px;
}

/* ─── Stats Pill Row ─── */
.stats-row {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 16px;
}
.stat-pill {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 14px 12px;
  text-align: center;
  flex: 0 1 120px;
  min-width: 96px;
}
.stat-pill-value {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.37px;
  color: var(--color-label);
}
.stat-pill-label {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-secondary-label);
  margin-top: 2px;
}

/* ─── Avatar Circle ─── */
.avatar-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}
.avatar-circle-ring {
  box-shadow: 0 0 0 3px var(--color-primary);
}

/* ─── Section spacing ─── */
.section-spacer {
  height: 20px;
}

/* ─── Success Page ─── */
.success-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: 0 24px;
  gap: 24px;
  text-align: center;
}
.success-checkmark {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── Confetti particles ─── */
.confetti-piece {
  position: fixed;
  animation: confettiFall 3s ease-in forwards;
  pointer-events: none;
  z-index: 200;
}
.confetti-piece[data-shape="circle"] { border-radius: 50%; }
.confetti-piece[data-shape="star"] {
  background: transparent !important;
  width: 0 !important;
  height: 0 !important;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 12px solid #FFD93D;
}
.confetti-piece[data-shape="square"] { border-radius: 1px; }
.confetti-piece[data-shape="rect"] { border-radius: 1px; }

/* ─── Spinner ─── */
.zinc-spinner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  line-height: 1;
}
.spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.spinner-dark {
  border-color: rgba(0,0,0,0.15);
  border-top-color: var(--color-primary);
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Dark mode overrides ─── */
.dark header[data-mode="hidden"] {
  background: transparent;
}
.dark .app-nav {
  border-top-color: var(--color-separator);
}

/* ─── Responsive max-width container for larger screens ─── */
.app-container {
  margin: 0 auto;
  width: 100%;
}

/* ─── Utility to hide elements ─── */
.hidden { display: none !important; }

/* ════════════════════════════════════════════════════════════════
   ZincUI Component Styles  —  iOS-native interactive components
   ════════════════════════════════════════════════════════════════ */

/* ─── OTP Input ─── */
.zinc-otp {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.zinc-otp-input {
  width: 44px;
  height: 52px;
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-separator);
  background: var(--color-input-background);
  color: var(--color-label);
  outline: none;
  caret-color: var(--color-primary);
  transition: border-color 0.2s;
}
.zinc-otp-input:focus {
  border-color: var(--color-primary);
}
.zinc-otp-input.filled {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ─── Toggle Switch ─── */
.zinc-toggle {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}
.zinc-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.zinc-toggle-track {
  width: 51px;
  height: 31px;
  border-radius: var(--radius-xl);
  background: #e9e9ea;
  transition: background 0.25s;
  position: relative;
  flex-shrink: 0;
}
.dark .zinc-toggle-track {
  background: #39393d;
}
.zinc-toggle-track.on {
  background: var(--color-primary);
}
.zinc-toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zinc-toggle-track.on .zinc-toggle-knob {
  transform: translateX(20px);
}
.zinc-toggle-label {
  margin-left: 10px;
  font-size: 16px;
  color: var(--color-label);
}

/* ─── Segmented Control ─── */
.zinc-segmented {
  display: inline-flex;
  background: var(--color-separator);
  border-radius: var(--radius-md);
  padding: 2px;
  gap: 2px;
}
.zinc-segment {
  padding: 8px 18px;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  background: transparent;
  color: var(--color-secondary-label);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.zinc-segment.active {
  background: var(--color-card);
  color: var(--color-label);
  box-shadow: var(--shadow-sm);
}
.zinc-segment:active {
  opacity: 0.7;
}

/* ─── Slider ─── */
.zinc-slider {
  position: relative;
  height: 32px;
  display: flex;
  align-items: center;
  cursor: pointer;
  touch-action: none;
  user-select: none;
}
.zinc-slider-track {
  width: 100%;
  height: 4px;
  border-radius: var(--radius-sm);
  background: var(--color-separator);
  position: relative;
}
.zinc-slider-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
}
.zinc-slider-thumb {
  position: absolute;
  top: 50%;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transform: translate(-50%, -50%);
  cursor: grab;
  border: 0.5px solid var(--color-separator);
  z-index: 1;
}
.zinc-slider-value {
  position: absolute;
  right: 0;
  top: -22px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary-label);
}

/* ─── Stepper ─── */
.zinc-stepper {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-separator);
  overflow: hidden;
}
.zinc-stepper-btn {
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.zinc-stepper-btn:active {
  background: var(--color-primary-light);
}
.zinc-stepper-btn:disabled {
  color: var(--color-tertiary-label);
  cursor: not-allowed;
}
.zinc-stepper-btn:disabled:active {
  background: transparent;
}
.zinc-stepper-value {
  min-width: 44px;
  text-align: center;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-label);
  padding: 0 8px;
}

/* ─── Search Bar ─── */
.zinc-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}
.zinc-search-icon {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--color-tertiary-label);
  pointer-events: none;
  z-index: 1;
}
.zinc-search-input {
  width: 100%;
  padding: 10px 12px 10px 36px;
  font-size: 17px;
  font-weight: 400;
  color: var(--color-label);
  background: var(--color-separator);
  border: 0.5px solid transparent;
  border-radius: var(--radius-md);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  transition: background 0.2s, border-color 0.2s;
}
.zinc-search-input:focus {
  background: var(--color-card);
  border-color: var(--color-separator);
}
.zinc-search-input::placeholder {
  color: var(--color-tertiary-label);
}
.zinc-search-cancel {
  display: none;
  border: none;
  background: none;
  color: var(--color-primary);
  font-size: 17px;
  cursor: pointer;
  padding: 8px 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.zinc-search.focused .zinc-search-cancel {
  display: block;
}

/* ─── Carousel ─── */
.zinc-carousel {
  position: relative;
  overflow: hidden;
  user-select: none;
}
.zinc-carousel-track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
}
.zinc-carousel-track::-webkit-scrollbar {
  display: none;
}
.zinc-carousel-item {
  flex: 0 0 100%;
  scroll-snap-align: start;
  box-sizing: border-box;
}

/* ─── Progress Bar ─── */
.zinc-progress {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-sm);
  background: var(--color-separator);
  overflow: hidden;
}
.zinc-progress-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  transition: width 0.4s ease;
}
.zinc-progress-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-secondary-label);
  margin-top: 4px;
  text-align: right;
}

/* ─── Skeleton Loader ─── */
.zinc-skeleton {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.zinc-skeleton-row {
  height: 14px;
  border-radius: var(--radius-md);
  background: var(--color-separator);
  position: relative;
  overflow: hidden;
}
.zinc-skeleton-row:last-child {
  width: 60%;
}
.zinc-skeleton-header {
  display: flex;
  gap: 12px;
  align-items: center;
}
.zinc-skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-separator);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.zinc-skeleton-lines {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.zinc-skeleton-shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
  animation: zincShimmer 1.8s infinite;
}
.dark .zinc-skeleton-shimmer {
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.08) 50%, transparent 100%);
}
@keyframes zincShimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

/* ─── Rating ─── */
.zinc-rating {
  display: inline-flex;
  gap: 2px;
  cursor: pointer;
}
.zinc-star {
  width: 26px;
  height: 26px;
  color: var(--color-separator);
  transition: color 0.15s, transform 0.15s;
  flex-shrink: 0;
}
.zinc-star.filled {
  color: #FFB800;
}
.zinc-star:active {
  transform: scale(0.85);
}
.zinc-rating-readonly {
  cursor: default;
}

/* ─── Badge ─── */
.zinc-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  font-weight: 600;
  color: white;
  background: var(--color-destructive);
}
.zinc-badge.zinc-badge-primary {
  background: var(--color-primary);
}
.zinc-badge.zinc-badge-success {
  background: var(--color-success);
}

/* ─── Chips / Tags ─── */
.zinc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.zinc-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  background: var(--color-separator);
  color: var(--color-label);
  cursor: default;
  transition: background 0.15s;
}
.zinc-chip.zinc-chip-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.zinc-chip-remove {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: none;
  background: var(--color-tertiary-label);
  color: var(--color-card);
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 0;
  transition: background 0.15s;
}
.zinc-chip-remove:active {
  background: var(--color-label);
}

/* ─── Expandable / Accordion ─── */
.zinc-expandable {
  overflow: hidden;
}
.zinc-expandable-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.zinc-expandable-chevron {
  transition: transform 0.25s ease;
  width: 14px;
  height: 14px;
  color: var(--color-tertiary-label);
  flex-shrink: 0;
}
.zinc-expandable.open .zinc-expandable-chevron {
  transform: rotate(90deg);
}
.zinc-expandable-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}
.zinc-expandable.open .zinc-expandable-content {
  max-height: 500px;
}

/* ─── Page Control ─── */
.zinc-pagecontrol {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 8px 0;
}
.zinc-pagecontrol-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-separator);
  transition: all 0.25s ease;
  cursor: pointer;
}
.zinc-pagecontrol-dot.active {
  width: 20px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
}

/* ─── Modal ─── */
.zinc-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  animation: zincFadeIn 0.2s ease;
}
.zinc-modal {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 340px;
  padding: 24px;
  box-shadow: var(--shadow-xl);
  animation: zincModalUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zinc-modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-label);
  margin-bottom: 6px;
  text-align: center;
}
.zinc-modal-body {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-secondary-label);
  margin-bottom: 20px;
  text-align: center;
  line-height: 1.4;
}
.zinc-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.zinc-modal-actions .btn {
  width: 100%;
}
@keyframes zincFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes zincModalUp {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── Tooltip ─── */
.zinc-tooltip {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}
.zinc-tooltip-trigger {
  cursor: pointer;
}
.zinc-tooltip-content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  padding: 6px 12px;
  background: var(--color-label);
  color: var(--color-bg);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  margin-bottom: 6px;
  z-index: 50;
}
.zinc-tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-label);
}
.zinc-tooltip:hover .zinc-tooltip-content,
.zinc-tooltip.show .zinc-tooltip-content {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── Action Sheet ─── */
.zinc-actionsheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  animation: zincFadeIn 0.2s ease;
}
.zinc-actionsheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 201;
  padding: 8px 16px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
  animation: zincSheetUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes zincSheetUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.zinc-actionsheet-group {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 8px;
}
.zinc-actionsheet-item {
  display: block;
  width: 100%;
  padding: 16px;
  border: none;
  background: transparent;
  font-size: 17px;
  font-weight: 500;
  color: var(--color-label);
  text-align: center;
  cursor: pointer;
  transition: background 0.1s;
  -webkit-tap-highlight-color: transparent;
}
.zinc-actionsheet-item:not(:last-child) {
  border-bottom: 0.5px solid var(--color-separator);
}
.zinc-actionsheet-item:active {
  background: var(--color-separator);
}
.zinc-actionsheet-item.destructive {
  color: var(--color-destructive);
  font-weight: 600;
}
.zinc-actionsheet-cancel {
  display: block;
  width: 100%;
  padding: 16px;
  border: none;
  border-radius: var(--radius-xl);
  background: var(--color-card);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-label);
  text-align: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* ─── Alert ─── */
.zinc-alert-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  animation: zincFadeIn 0.2s ease;
}
.zinc-alert {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 280px;
  padding: 24px 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: zincModalUp 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zinc-alert-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-label);
  margin-bottom: 4px;
}
.zinc-alert-message {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-secondary-label);
  margin-bottom: 16px;
  line-height: 1.4;
}
.zinc-alert-actions {
  display: flex;
  gap: 8px;
}
.zinc-alert-actions .btn {
  flex: 1;
  font-size: 14px;
  min-height: 40px;
  padding: 10px 12px;
}

/* ─── Notification Banner ─── */
.zinc-notification {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 150;
  background: var(--color-card);
  border-bottom: 0.5px solid var(--color-separator);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-md);
}
.zinc-notification.show {
  transform: translateY(0);
}
.zinc-notification-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-primary);
}
.zinc-notification-content {
  flex: 1;
  min-width: 0;
}
.zinc-notification-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-label);
  line-height: 1.3;
}
.zinc-notification-message {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-secondary-label);
  line-height: 1.3;
}

/* ─── Swipe Actions ─── */
.zinc-swipe-container {
  position: relative;
  overflow: hidden;
}
.zinc-swipe-content {
  position: relative;
  z-index: 1;
  background: var(--color-card);
  transition: transform 0.25s ease;
}
.zinc-swipe-actions {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  z-index: 0;
  overflow: hidden;
  gap: 0;
  margin: 0;
  padding: 0;
  background: var(--color-card);
}
.zinc-swipe-action {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: none;
  margin: 0;
  color: var(--color-label);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.1s;
  min-width: 72px;
}
.zinc-swipe-action.destructive {
  background: var(--color-destructive);
}
.zinc-swipe-action.primary {
  background: var(--color-primary);
  color: var(--color-bg);
  text-decoration: none;
}
.zinc-swipe-action.success {
  background: var(--color-success);
}

/* ─── Context Menu ─── */
.zinc-contextmenu {
  position: fixed;
  z-index: 300;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 0.5px solid var(--color-separator);
  padding: 4px 0;
  min-width: 180px;
  animation: zincFadeIn 0.15s ease;
}
.zinc-contextmenu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-label);
  cursor: pointer;
  transition: background 0.1s;
}
.zinc-contextmenu-item:active {
  background: var(--color-separator);
}
.zinc-contextmenu-item.destructive {
  color: var(--color-destructive);
}

/* ─── Countdown Timer ─── */
.zinc-countdown {
  display: flex;
  gap: 16px;
  justify-content: center;
}
.zinc-countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.zinc-countdown-value {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--color-label);
  min-width: 56px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.zinc-countdown-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-tertiary-label);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ─── Code Preview ─── */
.zinc-code-block {
  background: #1C1C1E;
  border-radius: var(--radius-md);
  padding: 16px;
  overflow-x: auto;
  margin-top: 12px;
}
.dark .zinc-code-block {
  background: #0C0C0D;
}
.zinc-code-block code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: #E4E4E7;
  white-space: pre;
}

/* ─── Section Nav for Demo Page ─── */
.zinc-section-nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 8px 16px;
  border-bottom: 0.5px solid var(--color-separator);
  background: var(--color-card);
}
.zinc-section-nav::-webkit-scrollbar { display: none; }
.zinc-section-link {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-secondary-label);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.zinc-section-link:hover,
.zinc-section-link.active {
  background: var(--color-primary);
  color: white;
}

/* ─── Markdown Content (md-content) ─── */
.md-content {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-label);
  word-wrap: break-word;
}
.md-content > *:first-child { margin-top: 0; }
.md-content > *:last-child { margin-bottom: 0; }

.md-content h1, .md-content h2, .md-content h3, .md-content h4 {
  font-weight: 700;
  color: var(--color-label);
  margin: 20px 0 8px;
  letter-spacing: -0.3px;
}
.md-content h1 { font-size: 22px; }
.md-content h2 { font-size: 18px; }
.md-content h3 { font-size: 16px; }
.md-content h4 { font-size: 14px; }
.md-content h1:first-child, .md-content h2:first-child { margin-top: 0; }

.md-content p {
  margin: 0 0 12px;
  color: var(--color-secondary-label);
}

.md-content a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.md-content a:hover { opacity: 0.8; }

.md-content ul, .md-content ol {
  margin: 0 0 12px;
  padding-left: 20px;
  color: var(--color-secondary-label);
}
.md-content li { margin-bottom: 4px; }
.md-content li:last-child { margin-bottom: 0; }

.md-content code:not(pre code) {
  background: var(--color-separator);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-label);
}

.md-content pre {
  background: #1C1C1E;
  border-radius: var(--radius-md);
  padding: 16px;
  overflow-x: auto;
  margin: 0 0 16px;
}
.dark .md-content pre { background: #0C0C0D; }
.md-content pre code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: #E4E4E7;
  white-space: pre;
}

.md-content blockquote {
  margin: 0 0 12px;
  padding: 8px 12px;
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-secondary-label);
  font-size: 13px;
}
.md-content blockquote p:last-child { margin-bottom: 0; }

.md-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 13px;
  background: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.md-content th {
  background: var(--color-separator);
  color: var(--color-secondary-label);
  font-weight: 600;
  text-align: left;
  padding: 10px 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.md-content td {
  padding: 10px 12px;
  border-top: 0.5px solid var(--color-separator);
  color: var(--color-label);
}
.md-content tr:first-child td { border-top: none; }

.md-content hr {
  border: none;
  height: 0.5px;
  background: var(--color-separator);
  margin: 20px 0;
}

.md-content img {
  width: 100%;
  border-radius: var(--radius-md);
  display: block;
  margin: 12px 0;
}

.md-content iframe {
  max-width: 100%;
  display: block;
  margin: 12px auto;
  border-radius: var(--radius-md);
  border: none;
}

.md-content strong { font-weight: 600; color: var(--color-label); }
.md-content em { font-style: italic; }

/* ════════════════════════════════════════════════════════════════
   ZincUI Responsive / Desktop / Cross-platform Layer
   Mobile-first; PC get adaptive max-width containers and panels.
   Android web app is the primary target (already mobile-first).
   ════════════════════════════════════════════════════════════════ */

/* ─── Responsive base overrides ─── */
@media (min-width: 768px) {
  .app-container {
    max-width: 720px;
  }
  /* On larger screens allow wider content but keep comfortable reading */
  .app-main {
    scrollbar-gutter: stable;
  }
}

@media (min-width: 1024px) {
  .app-container {
    max-width: 960px;
  }
  .stats-row {
    gap: 12px;
  }
  .stat-pill {
    flex-basis: 140px;
  }
}

/* Allow opt-in fluid full-width pages (e.g. dashboards) on desktop */
.app-container.is-fluid {
  max-width: 100%;
}

/* ─── Desktop top navigation (replaces bottom tab bar on PC) ─── */
@media (min-width: 768px) {
  .app-nav.app-nav--bottom {
    position: fixed;
    bottom: 0;
  }
  .app-nav--top {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    height: 56px;
    padding-bottom: 0;
    border-top: none;
    border-bottom: 0.5px solid var(--color-separator);
    z-index: 60;
  }
  .app-nav--top .nav-inner {
    max-width: 1200px;
    height: 56px;
    padding: 0 16px;
    justify-content: flex-start;
    gap: 4px;
  }
  .app-nav--top .nav-item {
    width: auto;
    flex-direction: row;
    gap: 8px;
    padding: 0 14px;
    height: 40px;
    border-radius: var(--radius-md);
    font-size: 14px;
  }
  .app-nav--top .nav-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
  }
  .app-nav--top .nav-scan-btn {
    margin-top: 0;
    margin-left: auto;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-xl);
  }
  .app-nav--top .nav-scan-btn svg { width: 20px; height: 20px; }
}

/* ─── Adaptive card grid (auto-fit for responsive galleries) ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  padding: 16px;
}
@media (min-width: 768px) {
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
}

/* ─── Two-column split (master/detail) for PC/tablet ─── */
.split-view {
  display: flex;
  height: 100%;
  width: 100%;
}
.split-view .split-master {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
}
.split-view .split-detail {
  flex: 2;
  min-width: 0;
  overflow-y: auto;
  border-left: 0.5px solid var(--color-separator);
  background: var(--color-card);
}
@media (max-width: 767px) {
  .split-view { flex-direction: column; }
  .split-view .split-detail {
    border-left: none;
    display: none;
  }
  .split-view.split-show-detail .split-master { display: none; }
  .split-view.split-show-detail .split-detail { display: block; }
}

/* ─── Collapsible side navigation for desktop apps ─── */
.side-nav {
  width: 260px;
  flex-shrink: 0;
  background: var(--color-card);
  border-right: 0.5px solid var(--color-separator);
  overflow-y: auto;
  padding: 12px 8px;
}
.side-nav-group-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-tertiary-label);
  padding: 12px 12px 4px;
}
.side-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--color-secondary-label);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}
.side-nav-link svg { width: 20px; height: 20px; flex-shrink: 0; }
.side-nav-link:hover { background: var(--color-primary-light); color: var(--color-primary); }
.side-nav-link.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: 600; }

.app-shell {
  display: flex;
  height: 100%;
  width: 100%;
  overflow: hidden;
}
.app-shell .app-main { flex: 1; }

@media (max-width: 767px) {
  .side-nav {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -280px;
    z-index: 120;
    width: 280px;
    transition: left 0.25s ease;
    box-shadow: var(--shadow-xl);
  }
  .side-nav.open { left: 0; }
}

/* ─── Dropdown Menu (data-zinc="menu") ─── */
.zinc-menu {
  position: absolute;
  z-index: 300;
  min-width: 200px;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 0.5px solid var(--color-separator);
  padding: 6px 0;
  animation: zincFadeIn 0.15s ease;
}
.zinc-menu.align-right { right: 0; }
.zinc-menu.align-center { left: 50%; transform: translateX(-50%); }
.zinc-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-label);
  cursor: pointer;
  transition: background 0.1s;
  white-space: nowrap;
}
.zinc-menu-item svg { width: 18px; height: 18px; color: var(--color-tertiary-label); flex-shrink: 0; }
.zinc-menu-item:active { background: var(--color-separator); }
.zinc-menu-item.destructive { color: var(--color-destructive); }
.zinc-menu-item.destructive svg { color: var(--color-destructive); }
.zinc-menu-divider {
  height: 0.5px;
  background: var(--color-separator);
  margin: 6px 0;
}
.zinc-menu-label {
  padding: 6px 16px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-tertiary-label);
}
.zinc-menu-trigger { position: relative; }
.zinc-menu-trigger > .zinc-menu-item,
.zinc-menu-trigger > .zinc-menu-divider,
.zinc-menu-trigger > .zinc-menu-label { display: none; }

/* ─── Popover panel (data-zinc="popover") ─── */
.zinc-popover {
  position: absolute;
  z-index: 300;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 0.5px solid var(--color-separator);
  padding: 16px;
  width: 280px;
  animation: zincFadeIn 0.15s ease;
}
.zinc-popover.align-right { right: 0; }
.zinc-popover-title { font-size: 15px; font-weight: 600; color: var(--color-label); margin-bottom: 8px; }

/* ─── Drawer (side panel) ─── */
.zinc-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  animation: zincFadeIn 0.2s ease;
}
.zinc-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background: var(--color-card);
  z-index: 201;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  overflow-y: auto;
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: var(--shadow-xl);
}
.zinc-drawer--left { left: 0; transform: translateX(-100%); }
.zinc-drawer--right { right: 0; transform: translateX(100%); }
.zinc-drawer.open { transform: translateX(0); }
.zinc-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 0.5px solid var(--color-separator);
}
.zinc-drawer-title { font-size: 17px; font-weight: 700; color: var(--color-label); }
.zinc-drawer-body { padding: 16px; }

/* ─── FAB (floating action button) ─── */
.zinc-fab {
  position: fixed;
  right: 20px;
  bottom: calc(80px + env(safe-area-inset-bottom, 0px));
  width: 56px;
  height: 56px;
  border-radius: var(--radius-2xl);
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 90;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.zinc-fab:active { transform: scale(0.92); }
.zinc-fab svg { width: 24px; height: 24px; }
@media (min-width: 768px) {
  .zinc-fab { bottom: 24px; right: 24px; }
}

/* ════════════════════════════════════════════════════════════════
   Drag & Drop Builder
   Add class "zinc-builder" to a container to make it editable.
   Auto-styles dropped raw content to match the design system.
   ════════════════════════════════════════════════════════════════ */
.zinc-builder { position: relative; }
.zinc-builder.is-editing { outline: 2px dashed var(--color-primary); outline-offset: -2px; }

.zinc-palette {
  position: fixed;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--color-card);
  border: 0.5px solid var(--color-separator);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 12px;
  z-index: 400;
}
.zinc-palette-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-tertiary-label);
  margin-bottom: 8px;
}
.zinc-palette-group { margin-bottom: 10px; }
.zinc-palette-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 0.5px solid var(--color-separator);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-label);
  cursor: grab;
  margin-bottom: 6px;
  user-select: none;
  transition: background 0.15s;
}
.zinc-palette-chip:hover { background: var(--color-primary-light); }
.zinc-palette-chip:active { cursor: grabbing; }
.zinc-palette-chip svg { width: 16px; height: 16px; color: var(--color-primary); }

.zinc-dropzone {
  min-height: 48px;
  transition: background 0.15s, box-shadow 0.15s;
  position: relative;
}
.zinc-builder.is-editing .zinc-dropzone {
  outline: 1px dashed var(--color-opaque-separator);
  outline-offset: -4px;
}
.zinc-dropzone.drag-over {
  background: var(--color-primary-light);
  outline: 2px dashed var(--color-primary);
  outline-offset: -4px;
  border-radius: var(--radius-md);
}

.zinc-block {
  position: relative;
  transition: box-shadow 0.15s, outline 0.15s;
}
.zinc-builder.is-editing .zinc-block { outline: 1px solid transparent; cursor: default; }
.zinc-builder.is-editing .zinc-block:hover { outline-color: var(--color-opaque-separator); }
.zinc-block.selected { outline: 2px solid var(--color-primary) !important; outline-offset: -2px; }

.zinc-block-toolbar {
  position: absolute;
  top: -34px;
  right: 0;
  display: none;
  gap: 4px;
  background: var(--color-label);
  border-radius: var(--radius-sm);
  padding: 4px;
  z-index: 5;
}
.zinc-builder.is-editing .zinc-block:hover .zinc-block-toolbar,
.zinc-block.selected .zinc-block-toolbar { display: flex; }
.zinc-block-toolbar button {
  border: none;
  background: none;
  color: var(--color-bg);
  cursor: pointer;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.zinc-block-toolbar button:hover { background: rgba(255,255,255,0.2); }
.zinc-block-toolbar svg { width: 14px; height: 14px; }

/* Auto-style: normalize unstyled HTML dropped into a builder */
.zinc-builder .zinc-dropzone button:not([class]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  font-size: 17px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  padding: 12px 28px;
  background: var(--color-primary);
  color: white;
  cursor: pointer;
}
.zinc-builder .zinc-dropzone a:not([class]) { color: var(--color-primary); text-decoration: none; font-weight: 500; }
.zinc-builder .zinc-dropzone input:not([class]),
.zinc-builder .zinc-dropzone textarea:not([class]) {
  width: 100%;
  padding: 12px 16px;
  font-size: 17px;
  border: none;
  border-radius: 0;
  background: var(--color-system-background);
  color: var(--color-label);
  outline: none;
}
.zinc-builder .zinc-dropzone img:not([class]) {
  max-width: 100%;
  border-radius: var(--radius-md);
  display: block;
}
.zinc-builder .zinc-dropzone h1:not([class]),
.zinc-builder .zinc-dropzone h2:not([class]),
.zinc-builder .zinc-dropzone h3:not([class]) {
  color: var(--color-label);
  font-weight: 700;
}

/* Builder mode toggle button */
.zinc-builder-toggle {
  position: fixed;
  right: 16px;
  top: 16px;
  z-index: 401;
  background: var(--color-label);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius-full);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 6px;
}
.zinc-builder-toggle svg { width: 16px; height: 16px; }

/* Properties panel (when editing) */
.zinc-props {
  position: fixed;
  right: 16px;
  top: 64px;
  width: 220px;
  background: var(--color-card);
  border: 0.5px solid var(--color-separator);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: 12px;
  z-index: 400;
  display: none;
}
.zinc-props.open { display: block; }
.zinc-props label { display: block; font-size: 12px; color: var(--color-secondary-label); margin-bottom: 4px; margin-top: 8px; }
.zinc-props input, .zinc-props select {
  width: 100%;
  padding: 8px 10px;
  font-size: 14px;
  border: 0.5px solid var(--color-separator);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-label);
  outline: none;
}

/* Touch-friendly scroll snapping helper */
.snap-x { scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.snap-start { scroll-snap-align: start; }

/* Visibility helpers for responsive design */
.zinc-hide-mobile { display: none; }
@media (min-width: 768px) { .zinc-hide-mobile { display: revert; } }
.zinc-hide-desktop { display: revert; }
@media (min-width: 768px) { .zinc-hide-desktop { display: none; } }

/* TEMP TRIAL (revert to remove): 20px radius on lone primary buttons
   and on grouped-sections containing form fields */
.btn-primary { border-radius: 20px; }
.grouped-section:has(> .grouped-field) { border-radius: 20px; }