/* ═══════════════════════════════════════════════════════════
   EDC APP — Base Styles & Layout
   ═══════════════════════════════════════════════════════════ */

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
}

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

body {
  font-family:
    'Kantumruy Pro', 'Khmer', 'Hanuman', 'Content',
    -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    sans-serif;
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color var(--transition), color var(--transition);
}

/* Khmer script needs extra vertical room for stacked diacritics */
[data-lang="km"] body,
[data-lang="km"] {
  font-size: 17px;
  line-height: 1.9;
  word-break: break-word;
}

[data-lang="km"] .app-bar__title,
[data-lang="km"] .section-title,
[data-lang="km"] .settings-row__label,
[data-lang="km"] .btn,
[data-lang="km"] p,
[data-lang="km"] span,
[data-lang="km"] div {
  line-height: 1.9;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  outline: none;
  border: none;
  background: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* ── App Root ────────────────────────────────────────────── */
#app {
  position: relative;
  width: 100%;
  max-width: 430px;
  height: 100dvh;
  height: 100vh;
  margin: 0 auto;
  background: linear-gradient(180deg, var(--c-bg-start, var(--c-bg)) 0%, var(--c-bg-end, var(--c-bg)) 60%, var(--c-bg) 100%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── Screen Container ────────────────────────────────────── */
#screen {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

#screen.has-nav {
  /* Extra space: floating nav height + gap above nav + safe area */
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom, 0px) + 17px);
  /* Fade content into bottom nav */
  -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 75%, transparent 100%);
}

#screen.sub-page {
  /* No padding-top — updated pages hoist their bar into #app-bar-container which
     handles safe-area insets itself. */
  background: var(--c-surface);
}

/* Non-updated sub-pages still render their bar inside #screen. Give it the same
   safe-area treatment as #app-bar-container so it fills behind the status bar. */
#screen.sub-page .app-bar {
  height: calc(var(--bar-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
}

/* Second-level sticky bars (tab bars, search/filter bars) sit below the app bar. */
#screen.sub-page [style*="sticky"][style*="top:var(--bar-h)"] {
  top: calc(env(safe-area-inset-top, 0px) + var(--bar-h)) !important;
}

/* ── Screen Transitions ──────────────────────────────────── */
.screen-enter {
  animation: screenEnter 0.25s ease forwards;
}
.screen-exit {
  animation: screenExit 0.2s ease forwards;
}

@keyframes screenEnter {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes screenExit {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}

/* ── App Bar ─────────────────────────────────────────────── */
.app-bar {
  position: relative;
  z-index: 100;
  /* Base height — inner screen bars use this as-is */
  height: var(--bar-h);
  padding-top: 0;
  display: flex;
  align-items: center;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Global EDC bar only — sits at viewport top behind the status bar */
#app-bar-container .app-bar {
  height: calc(var(--bar-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 4px 20px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] #app-bar-container .app-bar {
  background: rgba(22, 26, 35, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 4px 20px rgba(0, 0, 0, 0.18);
}

.app-bar__title {
  flex: 1;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -0.2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-bar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.app-bar__logo-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
  line-height: 1.2;
}

.app-bar__logo-sub {
  font-size: 10px;
  color: var(--c-muted);
  font-weight: 400;
}

[data-lang="km"] .app-bar__logo-sub {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  position: relative;
  top: -5px;
}

/* ── Typography ──────────────────────────────────────────── */
.text-xs    { font-size: 11px; }
.text-sm    { font-size: 13px; }
.text-base  { font-size: 15px; }
.text-md    { font-size: 17px; }
.text-lg    { font-size: 20px; }
.text-xl    { font-size: 24px; }
.text-2xl   { font-size: 28px; }
.text-3xl   { font-size: 34px; }

.font-normal  { font-weight: 400; }
.font-medium  { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold    { font-weight: 700; }

.text-primary { color: var(--c-primary); }
.text-muted   { color: var(--c-muted); }
.text-error   { color: var(--c-error); }
.text-success { color: var(--c-success); }
.text-center  { text-align: center; }
.text-right   { text-align: right; }

/* ── Layout Utilities ────────────────────────────────────── */
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.flex-1      { flex: 1; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.p-md  { padding: var(--space-md); }
.p-lg  { padding: var(--space-lg); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }

.w-full  { width: 100%; }
.hidden  { display: none !important; }

/* ── Section ─────────────────────────────────────────────── */
.section {
  padding: var(--space-md);
}

.section + .section {
  padding-top: 0;
}

.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
}

/* ── Divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--c-border);
  margin: 0;
}

.divider-thick {
  height: 8px;
  background: var(--c-surface-2);
}

/* ── Skeleton Loader ─────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

.skeleton {
  background: linear-gradient(90deg,
    var(--c-surface-2) 25%,
    var(--c-surface-3) 50%,
    var(--c-surface-2) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--r-sm);
}

/* ── Scroll utilities ────────────────────────────────────── */
.scroll-x {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.scroll-x::-webkit-scrollbar { display: none; }

.scroll-y {
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* ── Center page layouts ─────────────────────────────────── */
.page-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  min-height: 100vh;
  padding-top: calc(var(--space-xl) + env(safe-area-inset-top, 0px));
  padding-bottom: calc(var(--space-xl) + env(safe-area-inset-bottom, 0px));
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  text-align: center;
}

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  gap: var(--space-md);
}

.empty-state__icon {
  width: 72px;
  height: 72px;
  background: var(--c-surface-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
}

.empty-state__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.empty-state__desc {
  font-size: 14px;
  color: var(--c-muted);
  max-width: 240px;
}

/* ── Pull-to-refresh indicator ───────────────────────────── */
.refresh-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  color: var(--c-muted);
  font-size: 13px;
  gap: 8px;
}

/* ── Loading spinner ─────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

/* ── Chinese New Year — App Bar ──────────────────────────── */
[data-season="cny"] #app-bar-container .app-bar {
  background: rgba(175, 50, 10, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid rgba(255, 205, 60, 0.15);
  box-shadow: none;
}
[data-season="cny"] #app-bar-container .app-bar .btn-icon {
  background: rgba(255, 255, 255, 0.13);
  color: #FFD700;
}
[data-season="cny"] #app-bar-container .app-bar #notif-btn > span {
  border-color: rgba(255, 255, 255, 0.13) !important;
}
[data-season="cny"] .app-bar__logo-text {
  color: #FFD700 !important;
}
[data-season="cny"] .app-bar__logo-sub {
  color: rgba(255, 215, 120, 0.75) !important;
}

/* ── Khmer New Year — App Bar ────────────────────────────── */
[data-season="kny"] #app-bar-container .app-bar {
  background: rgba(10, 80, 88, 0.78) !important;
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
  border-bottom: 1px solid rgba(228, 180, 60, 0.20) !important;
  box-shadow: 0 1px 0 rgba(0,60,40,0.20), 0 4px 20px rgba(0,60,40,0.14);
}
[data-season="kny"] #app-bar-container .app-bar .btn-icon {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(244, 200, 66, 0.90);
}
[data-season="kny"] #app-bar-container .app-bar #notif-btn > span {
  border-color: rgba(10, 80, 88, 0.78) !important;
}
[data-season="kny"] .app-bar__logo-text {
  color: #F4C842 !important;
}
[data-season="kny"] .app-bar__logo-sub {
  color: rgba(200, 240, 220, 0.80) !important;
}

/* KNY — per-screen app bars match dark teal page background */
[data-season="kny"] .app-bar {
  background: rgba(14, 107, 114, 0.95) !important;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,0.10) !important;
  box-shadow: 0 1px 0 rgba(0,60,40,0.20), 0 2px 8px rgba(0,60,40,0.10);
}
[data-season="kny"] .app-bar .app-bar__title { color: rgba(255,255,255,0.92) !important; }
[data-season="kny"] .app-bar .btn-icon {
  color: rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.12);
}
[data-season="kny"] #screen.sub-page {
  background: rgba(14, 107, 114, 0.95);
}

/* KNY — empty states & section labels on dark teal background */
[data-season="kny"] .empty-state__title { color: rgba(255,255,255,0.92) !important; }
[data-season="kny"] .empty-state__desc  { color: rgba(255,255,255,0.70) !important; }
[data-season="kny"] .empty-state__icon  { background: rgba(255,255,255,0.15) !important; color: rgba(255,255,255,0.80) !important; }
[data-season="kny"] .section-title      { color: rgba(255,255,255,0.72) !important; }

/* ── Fade in ─────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* ── Slide up ────────────────────────────────────────────── */
@keyframes slideUp {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}