/* Modern theme — white glass + brand teal (#2596be, #509591) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

html[data-app-theme='modern'] {
  --brand-primary: #2596be;
  --brand-secondary: #509591;
  --bg: #ffffff;
  --bg-elevated: rgba(255, 255, 255, 0.65);
  --bg-panel: rgba(255, 255, 255, 0.75);
  --card: rgba(255, 255, 255, 0.78);
  --card-hover: rgba(255, 255, 255, 0.92);
  --glass-border: rgba(37, 150, 190, 0.12);
  --line: rgba(37, 150, 190, 0.1);
  --line-bright: rgba(37, 150, 190, 0.18);
  --text: #334155;
  --muted: #64748b;
  --ok: #2596be;
  --hi: #2596be;
  --hi-strong: #1e7a9c;
  --hi-alt: #509591;
  --ok-dim: #94a3b8;
  --ok-glow: rgba(37, 150, 190, 0.22);
  --hi-glow: rgba(80, 149, 145, 0.2);
  --bad: #e11d48;
  --bright: #0f172a;
  --copy: #475569;
  --accent-soft: rgba(37, 150, 190, 0.14);
  --accent-soft-mid: rgba(37, 150, 190, 0.1);
  --accent-soft-low: rgba(80, 149, 145, 0.1);
  --accent-halo: rgba(37, 150, 190, 0.12);
  --warn-copy: #be123c;
  --row-hover: rgba(37, 150, 190, 0.06);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(37, 150, 190, 0.06);
  --shadow-md: 0 8px 32px rgba(37, 150, 190, 0.08), 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 0 1px rgba(37, 150, 190, 0.14), 0 12px 40px rgba(80, 149, 145, 0.12);
  --glass-blur: blur(20px) saturate(1.65);
  --green-img-filter: none;
  scroll-behavior: smooth;
}

html[data-app-theme='modern'] {
  background: #ffffff;
}

html[data-app-theme='modern'],
html[data-app-theme='modern'] body {
  color: var(--text);
}

/* Prevent retro CRT styling before app-theme.js runs */
html[data-app-theme='modern'] body {
  background: transparent !important;
  text-shadow: none !important;
  animation: none !important;
}

html[data-app-theme='modern'] body::before,
html[data-app-theme='modern'] body::after {
  display: none !important;
}

html[data-app-theme='modern'] body {
  font-family: var(--font);
  letter-spacing: 0.01em;
  text-shadow: none;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 110% 70% at 0% -10%, rgba(37, 150, 190, 0.09), transparent 55%),
    radial-gradient(ellipse 90% 60% at 100% 0%, rgba(80, 149, 145, 0.08), transparent 50%),
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(37, 150, 190, 0.05), transparent 55%),
    #ffffff;
  background-attachment: fixed;
}

html[data-app-theme='modern'] body::before,
html[data-app-theme='modern'] body::after {
  display: none !important;
}

html[data-app-theme='modern'] body.theme-modern {
  animation: none;
}

/* Typography */
html[data-app-theme='modern'] h1,
html[data-app-theme='modern'] h2,
html[data-app-theme='modern'] h3,
html[data-app-theme='modern'] h4,
html[data-app-theme='modern'] .top-title {
  font-family: var(--font-display);
  text-transform: none;
  letter-spacing: -0.02em;
  text-shadow: none;
  color: var(--bright);
  font-weight: 700;
}

html[data-app-theme='modern'] h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  background: linear-gradient(135deg, #0f172a 0%, #2596be 50%, #509591 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

html[data-app-theme='modern'] h2 {
  color: var(--bright);
  font-size: 1.15rem;
  font-weight: 600;
}

html[data-app-theme='modern'] .sub,
html[data-app-theme='modern'] .hero-lead,
html[data-app-theme='modern'] .panel-sub {
  color: var(--muted);
  line-height: 1.6;
}

html[data-app-theme='modern'] a.ext {
  color: var(--ok);
  font-weight: 500;
}

html[data-app-theme='modern'] a.ext:hover {
  text-shadow: none;
  color: var(--hi-strong);
}

/* Header */
html[data-app-theme='modern'] .top-bar {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

html[data-app-theme='modern'] .top-bar-inner {
  padding: 0.75rem 1.5rem;
  max-width: 1280px;
}

html[data-app-theme='modern'] .top-title {
  color: var(--bright);
  text-transform: none;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  text-shadow: none;
}

html[data-app-theme='modern'] .site-nav {
  gap: 0.5rem;
}

html[data-app-theme='modern'] .site-nav a {
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

html[data-app-theme='modern'] .site-nav a:hover {
  color: var(--bright);
  background: var(--accent-soft-low);
  border-color: transparent;
  box-shadow: none;
}

html[data-app-theme='modern'] .site-nav a.active {
  color: var(--bright);
  background: linear-gradient(135deg, rgba(37, 150, 190, 0.28), rgba(80, 149, 145, 0.14));
  border-color: rgba(37, 150, 190, 0.35);
  box-shadow: var(--shadow-glow);
}

html[data-app-theme='modern'] .theme-toggle-btn {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line-bright);
  color: var(--bright);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  padding: 0.5rem 1rem;
}

html[data-app-theme='modern'] .theme-toggle-btn:hover,
html[data-app-theme='modern'] .theme-toggle-btn.theme-is-modern {
  border-color: var(--hi-strong);
  background: linear-gradient(135deg, rgba(37, 150, 190, 0.16), rgba(80, 149, 145, 0.08));
  color: var(--hi);
  box-shadow: var(--shadow-glow);
}

html[data-app-theme='modern'] .lang-toggle-btn {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
}

html[data-app-theme='modern'] .lang-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  min-width: 14rem;
  max-width: min(20rem, 92vw);
  max-height: min(70vh, 420px);
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 10050;
}

html[data-app-theme='modern'] .lang-menu[hidden] {
  display: none !important;
}

html[data-app-theme='modern'] .lang-picker.open .lang-menu {
  display: block;
}

html[data-app-theme='modern'] .lang-menu-item {
  background: transparent;
  border-radius: var(--radius-sm);
  margin: 2px 4px;
  width: calc(100% - 8px);
  font-size: 0.85rem;
}

html[data-app-theme='modern'] .lang-menu-item:hover,
html[data-app-theme='modern'] .lang-menu-item.active {
  background: var(--accent-soft-low);
  color: var(--hi);
  box-shadow: none;
}

html[data-app-theme='modern'] .lang-picker.open .lang-toggle-btn {
  border-color: var(--hi-strong);
  color: var(--hi);
}

/* Buttons */
html[data-app-theme='modern'] .btn,
html[data-app-theme='modern'] .btn-link {
  font-family: var(--font);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  background: linear-gradient(135deg, #2596be 0%, #509591 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 150, 190, 0.35);
  letter-spacing: 0.02em;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}

html[data-app-theme='modern'] .btn:hover,
html[data-app-theme='modern'] .btn-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(37, 150, 190, 0.4);
  filter: brightness(1.06);
  background: linear-gradient(135deg, #2596be 0%, #509591 100%);
}

html[data-app-theme='modern'] .btn.sec,
html[data-app-theme='modern'] .btn-link.sec {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--copy);
  border: 1px solid var(--line-bright);
  box-shadow: var(--shadow-sm);
}

html[data-app-theme='modern'] .btn.sec:hover {
  background: var(--card-hover);
  border-color: rgba(37, 150, 190, 0.35);
  color: var(--bright);
}

/* Panels & cards — frosted glass */
html[data-app-theme='modern'] .glass-panel {
  background: var(--card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

html[data-app-theme='modern'] .glass-panel.accent {
  border-color: rgba(37, 150, 190, 0.22);
  box-shadow: var(--shadow-glow);
  background: rgba(255, 255, 255, 0.78);
}

html[data-app-theme='modern'] .page-home,
html[data-app-theme='modern'] .page-devices,
html[data-app-theme='modern'] .page-map,
html[data-app-theme='modern'] .page-calendar,
html[data-app-theme='modern'] .page-clock,
html[data-app-theme='modern'] .map-page,
html[data-app-theme='modern'] .home-main,
html[data-app-theme='modern'] .devices-main,
html[data-app-theme='modern'] .world-main {
  background: transparent;
}

html[data-app-theme='modern'] .page-calendar .page-head h1,
html[data-app-theme='modern'] .page-clock .page-head h1 {
  color: var(--bright);
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

html[data-app-theme='modern'] .world-card-title {
  color: var(--bright);
  text-shadow: none;
}

html[data-app-theme='modern'] .clock-utc-line {
  color: var(--hi);
  text-shadow: none;
}

html[data-app-theme='modern'] .clock-view-toggle .clock-view-btn {
  font-family: var(--font);
}

html[data-app-theme='modern'] .hero-panel {
  background: rgba(255, 255, 255, 0.78) !important;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  gap: 2rem;
  box-shadow: var(--shadow-glow);
  border: 1px solid var(--glass-border);
}

html[data-app-theme='modern'] .hero-panel h1 {
  -webkit-text-fill-color: unset;
  background: none;
  color: var(--bright);
}

html[data-app-theme='modern'] .action-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

html[data-app-theme='modern'] .action-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 150, 190, 0.35);
  box-shadow: var(--shadow-glow);
}

html[data-app-theme='modern'] .action-num,
html[data-app-theme='modern'] .step-n {
  color: var(--ok);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

html[data-app-theme='modern'] .action-go {
  color: var(--hi);
}

html[data-app-theme='modern'] .step-card {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  border-color: var(--line);
}

html[data-app-theme='modern'] .step-card:hover {
  border-color: rgba(80, 149, 145, 0.35);
  background: var(--card-hover);
}

html[data-app-theme='modern'] .step-card code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.85);
  border-color: var(--line);
  color: var(--hi-strong);
  border-radius: 6px;
}

html[data-app-theme='modern'] .download-group-label {
  color: var(--hi);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

html[data-app-theme='modern'] .pill,
html[data-app-theme='modern'] .pill-primary {
  border-radius: 999px;
  background: var(--accent-soft-low);
  border: 1px solid rgba(37, 150, 190, 0.35);
  color: var(--hi);
}

html[data-app-theme='modern'] .pill:hover {
  background: rgba(37, 150, 190, 0.18);
  color: var(--bright);
}

html[data-app-theme='modern'] .panel-head {
  border-bottom-color: var(--line);
}

html[data-app-theme='modern'] .site-footer {
  background: transparent;
  border-top-color: var(--line);
}

html[data-app-theme='modern'] .creator-role {
  color: var(--ok);
}

/* Logo + creator — original colors on transparent PNG */
html[data-app-theme='modern'] .coin-flip-logo,
html[data-app-theme='modern'] .coin-flip-photo,
html[data-app-theme='modern'] .logo-img,
html[data-app-theme='modern'] .hero-logo-slot,
html[data-app-theme='modern'] .creator-coin-slot,
html[data-app-theme='modern'] .nav-coin,
html[data-app-theme='modern'] .coin-flip-face {
  background: #ffffff !important;
}

html[data-app-theme='modern'] .hero-logo-slot,
html[data-app-theme='modern'] .creator-coin-slot {
  filter: none !important;
  -webkit-filter: none !important;
  opacity: 1 !important;
  background: #ffffff !important;
}

/* Devices */
html[data-app-theme='modern'] .devices-jump a {
  border-radius: 999px;
  background: var(--card);
  font-weight: 500;
}

html[data-app-theme='modern'] .devices-jump a:hover {
  background: var(--accent-soft-low);
  color: var(--hi);
}

html[data-app-theme='modern'] .toolbar-sticky {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92) 70%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

html[data-app-theme='modern'] .chip {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  border-color: var(--line);
}

html[data-app-theme='modern'] .chip strong.ok-n {
  color: var(--ok);
  text-shadow: none;
}

html[data-app-theme='modern'] .table-wrap {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

html[data-app-theme='modern'] table,
html[data-app-theme='modern'] th,
html[data-app-theme='modern'] td {
  background: transparent;
  font-family: var(--font);
}

html[data-app-theme='modern'] .devices-table th,
html[data-app-theme='modern'] th {
  background: rgba(241, 245, 249, 0.9);
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

html[data-app-theme='modern'] .devices-table tbody tr:hover td {
  background: var(--row-hover);
}

html[data-app-theme='modern'] .st-on {
  color: var(--ok);
  text-shadow: none;
  font-weight: 600;
}

html[data-app-theme='modern'] .st-off {
  color: var(--bad);
}

html[data-app-theme='modern'] code,
html[data-app-theme='modern'] .ip-code {
  font-family: var(--font-mono);
  background: rgba(255, 255, 255, 0.9);
  border-radius: 6px;
  color: var(--hi-strong);
  border-color: var(--line);
}

html[data-app-theme='modern'] .label-in {
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  border-color: var(--line);
}

html[data-app-theme='modern'] .label-in:focus {
  border-color: var(--hi-strong);
  box-shadow: 0 0 0 3px var(--accent-soft-low);
}

html[data-app-theme='modern'] .live-dot {
  color: var(--ok);
}

html[data-app-theme='modern'] .banner-urls a {
  color: var(--hi);
}

/* Map */
html[data-app-theme='modern'] .map-page {
  background: transparent;
}

html[data-app-theme='modern'] .map-top {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
}

html[data-app-theme='modern'] .map-detail,
html[data-app-theme='modern'] .map-side {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

html[data-app-theme='modern'] #map-diagram {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

html[data-app-theme='modern'] .cap-yes {
  background: linear-gradient(135deg, #2596be, #509591);
  color: #ffffff;
  border-radius: var(--radius-sm);
}

html[data-app-theme='modern'] .cap-part {
  color: var(--hi);
}

html[data-app-theme='modern'] .cap-no {
  color: var(--bad);
}

/* World calendar / clock */
html[data-app-theme='modern'] .world-section {
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
}

html[data-app-theme='modern'] .world-card,
html[data-app-theme='modern'] .cal-card-grid {
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  border-color: var(--line);
  transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s;
}

html[data-app-theme='modern'] .world-card:hover,
html[data-app-theme='modern'] .cal-card-grid:hover {
  border-color: rgba(80, 149, 145, 0.4);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

html[data-app-theme='modern'] .world-card-date {
  color: var(--ok);
}

html[data-app-theme='modern'] .world-section-title {
  color: var(--bright);
  text-transform: none;
  letter-spacing: -0.01em;
}

html[data-app-theme='modern'] .clock-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

html[data-app-theme='modern'] .clock-card.is-local {
  border-color: var(--hi-strong);
  box-shadow: var(--shadow-glow);
}

html[data-app-theme='modern'] .clock-local-hero {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
}

html[data-app-theme='modern'] .devices-side,
html[data-app-theme='modern'] .side-panel {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

html[data-app-theme='modern'] .clock-hero-analog,
html[data-app-theme='modern'] .clock-analog-wrap {
  color: var(--hi-strong);
}

html[data-app-theme='modern'] .clock-time {
  color: var(--bright);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

html[data-app-theme='modern'] .clock-offset {
  color: var(--hi);
}

/* Calendar modal */
html[data-app-theme='modern'] .cal-modal-backdrop {
  background: rgba(241, 245, 249, 0.65);
  backdrop-filter: blur(10px);
}

html[data-app-theme='modern'] .cal-modal-panel {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

html[data-app-theme='modern'] .cal-modal-month-label {
  color: var(--hi);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}

html[data-app-theme='modern'] .cal-day {
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
}

html[data-app-theme='modern'] .cal-day-today {
  background: linear-gradient(135deg, #2596be, #509591);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(37, 150, 190, 0.4);
}

html[data-app-theme='modern'] .cal-modal-close {
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--bright);
}

html[data-app-theme='modern'] .cal-embed-month {
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0.02em;
}

html[data-app-theme='modern'] .cal-embed-grid .cal-day-today {
  background: linear-gradient(135deg, #2596be, #509591);
  color: #fff;
}

/* Inputs */
html[data-app-theme='modern'] input,
html[data-app-theme='modern'] select,
html[data-app-theme='modern'] textarea {
  font-family: var(--font);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-sm);
  color: var(--bright);
  letter-spacing: 0;
}

html[data-app-theme='modern'] input:focus,
html[data-app-theme='modern'] select:focus,
html[data-app-theme='modern'] textarea:focus {
  outline: none;
  border-color: var(--hi-strong);
  box-shadow: 0 0 0 3px var(--accent-soft-low);
}

/* Retro boot hidden on modern */
html[data-app-theme='modern'] .retro-boot {
  display: none !important;
}

html[data-app-theme='modern'] .retro-cursor {
  display: none !important;
}

/* Responsive spacing */
@media (min-width: 900px) {
  html[data-app-theme='modern'] .home-main,
  html[data-app-theme='modern'] .world-main {
    padding: 2rem 2rem 3rem;
  }
}