@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,500&display=swap');

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

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f4f5f7;
  --bg-tertiary: #ebedf0;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --border-color: #e5e7eb;
  --accent-color: #a8741a;
  --accent-hover: #8a5e12;
  --accent-light: rgba(233, 184, 96, 0.14);
  --brand-gold: #d9a441;
  --success-color: #059669;
  --success-light: rgba(5, 150, 105, 0.08);
  --danger-color: #dc2626;
  --danger-light: rgba(220, 38, 38, 0.08);
  --warning-color: #d97706;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --border-color: #374151;
    --accent-color: #e9b860;
    --accent-hover: #f6d48e;
    --accent-light: rgba(233, 184, 96, 0.12);
    --brand-gold: #e9b860;
    --success-color: #34d399;
    --success-light: rgba(52, 211, 153, 0.12);
    --danger-color: #f87171;
    --danger-light: rgba(248, 113, 113, 0.12);
    --warning-color: #fbbf24;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang HK', 'PingFang TC', 'Hiragino Sans CNS', 'Noto Sans CJK TC', 'Noto Sans TC', 'Microsoft JhengHei', 'Heiti TC', sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Layout ─────────────────────────────────── */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

header {
  text-align: center;
  margin-bottom: 3rem;
}

/* ── Typography ─────────────────────────────── */

h1 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 0.75rem;
}

p {
  color: var(--text-secondary);
  font-size: 1rem;
}

code {
  background: var(--bg-tertiary);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* ── Landing page card grid ─────────────────── */

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.app-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.app-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.2s ease;
  background: linear-gradient(135deg, var(--accent-light), transparent 60%);
  pointer-events: none;
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.app-card:hover::after {
  opacity: 1;
}

.app-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  display: block;
}

.app-card h2 {
  margin-bottom: 0.35rem;
  font-size: 1.15rem;
}

.app-card p {
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ── Buttons ────────────────────────────────── */

button, .btn {
  background: var(--accent-color);
  color: white;
  border: none;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.925rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

button:hover { background: var(--accent-hover); }
button:active { transform: scale(0.98); }
button:disabled { background: var(--text-tertiary); cursor: not-allowed; transform: none; }

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

button.danger, .btn.danger { background: var(--danger-color); }
button.danger:hover { background: #b91c1c; }

button.sm {
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* ── Form inputs ────────────────────────────── */

input[type="text"],
input[type="number"],
input[type="email"],
input[type="url"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.925rem;
  font-family: inherit;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* ── Navigation ─────────────────────────────── */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.back-link:hover {
  color: var(--accent-color);
}

/* ── State utilities ────────────────────────── */

.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
}

.loading-spinner::after {
  content: '';
  width: 28px;
  height: 28px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.error-message {
  background: var(--danger-light);
  color: var(--danger-color);
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid currentColor;
  border-color: rgba(220, 38, 38, 0.15);
}

.success-message {
  background: var(--success-light);
  color: var(--success-color);
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid currentColor;
  border-color: rgba(5, 150, 105, 0.15);
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-tertiary);
  font-size: 0.925rem;
}

/* ── Status badges ──────────────────────────── */

.status {
  text-align: center;
  padding: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.status.ok { color: var(--success-color); }
.status.err { color: var(--danger-color); }

/* ── Responsive ─────────────────────────────── */

@media (max-width: 768px) {
  .container { padding: 1rem; }
  h1 { font-size: 1.75rem; }
  .apps-grid { grid-template-columns: 1fr; }
}

/* ── Shell: home, today, archive ────────────── */

body.shell {
  background: var(--bg-primary);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(72rem, 100%);
  margin: 0 auto;
  padding: 1.15rem 1.5rem 0.25rem;
  text-align: left;
}

.site-nav .brand {
  color: var(--text-primary);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  text-decoration: none;
}

.site-nav .brand .gold {
  color: var(--brand-gold);
}

.site-nav nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1.15rem;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  color: var(--text-tertiary);
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1;
}

.lang-toggle button {
  appearance: none;
  margin: 0;
  padding: 0.15rem 0.05rem;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: 0;
  text-transform: none;
  cursor: pointer;
  opacity: 0.55;
}

.lang-toggle button[aria-pressed="true"] {
  color: var(--text-primary);
  opacity: 1;
}

.lang-toggle button:hover {
  color: var(--text-primary);
  opacity: 1;
}

.site-nav nav a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 550;
  text-decoration: none;
}

.site-nav nav a:hover,
.site-nav nav a[aria-current="page"],
.site-nav .brand[aria-current="page"] {
  color: var(--text-primary);
}

.site-nav a:focus-visible,
.lang-toggle button:focus-visible,
.today-card:focus-visible,
.day-card:focus-visible,
.site-foot a:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 3px;
  border-radius: 4px;
}

html[lang="zh-Hant-HK"] .section-label,
html[lang="zh-Hant-HK"] .kicker {
  letter-spacing: 0.04em;
}

.shell-main {
  width: min(40rem, 100%);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
  flex: 1;
}

.hero,
.archive-main {
  text-align: center;
}

.hero .ratio,
.archive-main .ratio {
  margin-bottom: 1rem;
  color: var(--text-tertiary);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.hero h1.brand-mark {
  position: relative;
  font-size: clamp(3.6rem, 14vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.07em;
  line-height: 0.85;
  margin-bottom: 0.9rem;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
  animation: brand-station 5.5s ease-in-out 1.55s infinite;
}

.hero h1.brand-mark .digit {
  display: inline-block;
  transform-origin: 50% 80%;
  will-change: transform, opacity;
  animation: digit-enter 0.95s cubic-bezier(0.2, 0.85, 0.25, 1) both;
  animation-delay: calc(var(--i, 0) * 0.1s);
}

.hero h1.brand-mark .digit[data-i="0"] { --i: 0; --tilt: -1; }
.hero h1.brand-mark .digit[data-i="1"] { --i: 1; --tilt: 1; }
.hero h1.brand-mark .digit[data-i="2"] { --i: 2; --tilt: -1; }
.hero h1.brand-mark .digit[data-i="3"] { --i: 3; --tilt: 1; }

.hero h1.brand-mark .digit.gold {
  position: relative;
  color: var(--brand-gold);
  animation:
    digit-enter-gold 1.05s cubic-bezier(0.18, 0.9, 0.22, 1) both,
    brand-gold-station 5.5s ease-in-out 1.55s infinite;
  animation-delay:
    calc(0.28s + var(--i, 0) * 0.08s),
    1.55s;
}

.hero h1.brand-mark .digit.gold::before,
.hero h1.brand-mark .digit.gold::after {
  content: '';
  position: absolute;
  width: 0.14em;
  height: 0.14em;
  border-radius: 50%;
  background: var(--brand-gold);
  box-shadow: 0 0 0.35em rgba(217, 164, 65, 0.85);
  opacity: 0;
  pointer-events: none;
  animation: gold-sparkle 0.75s ease-out both;
}

.hero h1.brand-mark .digit.gold::before {
  top: 8%;
  right: -12%;
  animation-delay: calc(0.72s + var(--i, 0) * 0.06s);
}

.hero h1.brand-mark .digit.gold::after {
  width: 0.1em;
  height: 0.1em;
  bottom: 18%;
  left: -10%;
  border-radius: 0.02em;
  transform: rotate(45deg);
  animation-delay: calc(0.88s + var(--i, 0) * 0.06s);
}

.hero h1.brand-mark .brand-egg {
  position: absolute;
  left: 50%;
  top: calc(100% + 0.35rem);
  transform: translateX(-50%) translateY(0.25rem);
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
  z-index: 2;
}

.hero h1.brand-mark.is-egg {
  margin-bottom: 2.35rem;
}

.hero h1.brand-mark.is-egg .brand-egg {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.hero h1.brand-mark.is-egg .digit.gold {
  filter: brightness(1.2);
  text-shadow:
    0 0 0.55rem rgba(217, 164, 65, 0.55),
    0 0 1.4rem rgba(217, 164, 65, 0.28);
}

@keyframes digit-enter {
  0% {
    opacity: 0;
    transform: translate3d(0, 2.1rem, 0) scale(0.55) rotate(calc(var(--tilt, 1) * -18deg));
  }
  58% {
    opacity: 1;
    transform: translate3d(0, -0.35rem, 0) scale(1.12) rotate(calc(var(--tilt, 1) * 6deg));
  }
  78% {
    opacity: 1;
    transform: translate3d(0, 0.1rem, 0) scale(0.96) rotate(calc(var(--tilt, 1) * -2deg));
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
  }
}

@keyframes digit-enter-gold {
  0% {
    opacity: 0;
    filter: brightness(0.35);
    transform: translate3d(0, 1.8rem, 0) scale(0.4) rotate(calc(var(--tilt, 1) * -22deg));
  }
  55% {
    opacity: 1;
    filter: brightness(1.4);
    transform: translate3d(0, -0.4rem, 0) scale(1.22) rotate(calc(var(--tilt, 1) * 8deg));
  }
  78% {
    opacity: 1;
    filter: brightness(1.08);
    transform: translate3d(0, 0.12rem, 0) scale(0.94) rotate(calc(var(--tilt, 1) * -2deg));
  }
  100% {
    opacity: 1;
    filter: brightness(1);
    transform: translate3d(0, 0, 0) scale(1) rotate(0deg);
  }
}

@keyframes gold-sparkle {
  0% {
    opacity: 0;
    transform: scale(0.2) translate3d(0, 0.2em, 0);
  }
  35% {
    opacity: 1;
    transform: scale(1.35) translate3d(0, -0.15em, 0);
  }
  100% {
    opacity: 0;
    transform: scale(0.4) translate3d(0, -0.55em, 0);
  }
}

@keyframes brand-station {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -0.16rem, 0); }
}

@keyframes brand-gold-station {
  0%, 100% {
    filter: brightness(1);
    text-shadow: 0 0 0 transparent;
  }
  50% {
    filter: brightness(1.1);
    text-shadow:
      0 0 0.55rem rgba(217, 164, 65, 0.55),
      0 0 1.4rem rgba(217, 164, 65, 0.28);
  }
}

.hero .tagline {
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.hero .why,
.archive-main .lede {
  max-width: 26rem;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.7;
}

.archive-main h1 {
  font-size: clamp(2.4rem, 8vw, 3.4rem);
  letter-spacing: -0.05em;
  margin-bottom: 0.6rem;
}

.today-wrap {
  margin-top: 2.75rem;
}

.section-label {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.today-card,
.day-card {
  display: block;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--text-primary);
  text-align: left;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.today-card {
  padding: 1.45rem 1.45rem 1.3rem;
  background: var(--bg-primary);
  border-top-color: var(--brand-gold);
}

.day-card {
  padding: 1.2rem 1.2rem 1.05rem;
  border-top-color: var(--brand-gold);
}

.today-card,
.day-card {
  box-shadow: inset 0 1px 0 var(--brand-gold), var(--shadow-sm);
}

.today-card:hover,
.day-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-color);
}

.today-card .kicker,
.day-card .kicker {
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
}

.today-card h3,
.day-card h2 {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin-bottom: 0.45rem;
}

.today-card p,
.day-card p {
  font-size: 0.95rem;
  line-height: 1.55;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.9rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.16rem 0.5rem;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.today-card .enter {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.05rem;
  color: var(--accent-color);
  font-size: 0.92rem;
  font-weight: 650;
}

.today-card:hover .enter span {
  transform: translateX(3px);
}

.today-card .enter span {
  display: inline-block;
  transition: transform 0.2s ease;
}

.archive-main {
  width: min(72rem, 100%);
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 22rem));
  justify-content: center;
  gap: 1rem;
  margin-top: 1.75rem;
  text-align: left;
}

.fallback-note {
  margin-top: 0.8rem;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.site-foot {
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  padding: 0.5rem 1rem 1.4rem;
}

.site-foot a {
  color: inherit;
  text-decoration: none;
}

.site-foot a:hover {
  color: var(--text-primary);
}

@media (max-width: 640px) {
  .site-nav {
    padding-inline: 1.1rem;
  }

  .site-nav nav {
    gap: 0.85rem;
  }

  .shell-main {
    padding-top: 1.75rem;
  }

  .archive-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .today-card,
  .day-card,
  .today-card .enter span {
    transition: none;
  }

  .today-card:hover,
  .day-card:hover {
    transform: none;
  }

  .hero h1.brand-mark,
  .hero h1.brand-mark .digit,
  .hero h1.brand-mark .digit.gold,
  .hero h1.brand-mark .digit.gold::before,
  .hero h1.brand-mark .digit.gold::after {
    animation: none !important;
    opacity: 1;
    transform: none;
    filter: none;
    text-shadow: none;
    will-change: auto;
  }

  .hero h1.brand-mark .digit.gold::before,
  .hero h1.brand-mark .digit.gold::after {
    content: none;
    opacity: 0;
  }

  .hero h1.brand-mark .brand-egg {
    transition: none;
  }
}