/* ================================

   Romanday Eight-Day Calendar UI

   ================================ */



/* Color system */

:root {

  --bg: #ffffff;

  --fg: #111111;

  --fg-dim: #6b7280; /* gray-500 */

  --accent: #2563eb; /* blue-600 */

  --rule: rgba(17, 17, 17, 0.12);



  --surface: #f9fafb;

  --shadow: 0 1px 2px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);



  --space-1: 8px;

  --space-2: 16px;

  --space-3: 24px;

  --space-4: 32px;



  --radius: 16px;



  --seg-on: var(--accent);

  --seg-off: color-mix(in srgb, var(--accent) 18%, transparent);

  --seg-stroke: color-mix(in srgb, var(--accent) 30%, #000 0%);

}



@media (prefers-color-scheme: dark) {

  :root {

    --bg: #0b0e12;

    --fg: #e5e7eb;

    --fg-dim: #9aa4b2; /* 20% boost */

    --accent: #60a5fa; /* blue-400/300 */

    --rule: rgba(229, 231, 235, 0.14);

    --surface: #11161c;

    --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 4px 20px rgba(0,0,0,0.3);



    --seg-on: var(--accent);

    --seg-off: color-mix(in srgb, var(--accent) 22%, transparent);

    --seg-stroke: color-mix(in srgb, var(--accent) 40%, #fff 0%);

  }

}



/* Global base */

*,

*::before,

*::after { box-sizing: border-box; }

html, body {

  height: 100%;

}

body {

  margin: 0;

  background: var(--bg);

  color: var(--fg);

  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";

  font-size: 16px;

  line-height: 1.4;

  font-variant-numeric: tabular-nums lining-nums;

}

.app-header, .app-footer {

  padding: var(--space-2);

  border-bottom: 1px solid var(--rule);

}

.app-footer {

  border-top: 1px solid var(--rule);

  border-bottom: none;

  color: var(--fg-dim);

}

.app-title {

  margin: 0;

  font-size: 20px;

  letter-spacing: 0.2px;

}



/* Layout */

.app-grid {

  display: grid;

  grid-template-columns: 2fr 3fr; /* ~40/60 split */

  gap: var(--space-3);

  padding: var(--space-3);

}

.pane {

  background: var(--surface);

  border: 1px solid var(--rule);

  border-radius: var(--radius);

  box-shadow: var(--shadow);

  padding: var(--space-3);

  min-height: 220px;

}



/* Clock pane */

.clock {

  display: inline-flex;

  align-items: center;

  justify-content: center;

  width: 100%;

}

.clock-svg {

  max-width: 720px;

  width: 100%;

  height: auto;

  display: block;

  filter: drop-shadow(0 1px 0 rgba(0,0,0,0.04));

}

.clock-text {

  margin-top: var(--space-2);

  color: var(--fg-dim);

}



/* Seven segment styling */

.segment {

  fill: var(--seg-off);

  stroke: var(--seg-stroke);

  stroke-width: 1;

  rx: 6;

  ry: 6;

  transition: fill 140ms ease-out, opacity 140ms ease-out;

}

.segment.on {

  fill: var(--seg-on);

}

.colon-dot {

  fill: var(--seg-on);

  opacity: 1;

  transition: opacity 140ms ease-out;

}

.colon-dot.off {

  opacity: 0.18;

}



/* Reduced motion: no blink animation (JS respects this too) */

@media (prefers-reduced-motion: reduce) {

  .colon-dot {

    transition: none;

    opacity: 1 !important;

  }

}



/* Calendar pane */

.current-date-line {

  margin-bottom: var(--space-2);

  font-weight: 600;

}

.week-header {

  display: grid;

  grid-template-columns: repeat(8, 1fr);

  gap: 0;

  border: 1px solid var(--rule);

  border-radius: 12px;

  overflow: hidden;

  margin-bottom: var(--space-2);

}

.week-header .weekday {

  padding: 10px 6px;

  text-align: center;

  font-size: 14px;

  color: var(--fg-dim);

  border-right: 1px solid var(--rule);

  background: color-mix(in srgb, var(--surface) 90%, var(--bg) 10%);

}

.week-header .weekday:last-child {

  border-right: none;

}

.week-header .weekday.current {

  color: var(--fg);

  background: color-mix(in srgb, var(--accent) 15%, transparent);

  font-weight: 700;

}



/* Year calendar grid of months */

.year-calendar {

  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: var(--space-3);

}

.month {

  display: grid;

  grid-template-rows: auto auto 1fr;

  gap: var(--space-1);

}

.month-title {

  font-weight: 700;

  font-size: 16px;

}

.month-grid {

  display: grid;

  grid-template-columns: repeat(8, 1fr);

  gap: 0;

  border: 1px solid var(--rule);

  border-radius: 12px;

  overflow: hidden;

  background: var(--bg);

}

.month-grid .cell {

  min-height: 40px;

  padding: 6px;

  border-right: 1px solid var(--rule);

  border-top: 1px solid var(--rule);

  position: relative;

}

.month-grid .cell:nth-child(-n+8) { /* first row border-top shown already by container border */

  border-top: none;

}

.month-grid .cell:nth-child(8n) {

  border-right: none;

}

.cell.blank {

  background: color-mix(in srgb, var(--bg) 94%, var(--fg) 6%);

}

.cell .num {

  position: absolute;

  top: 6px;

  right: 6px;

  font-size: 12px;

  color: var(--fg-dim);

}

.cell.today {

  outline: 2px solid var(--accent);

  outline-offset: -2px;

  background: color-mix(in srgb, var(--accent) 12%, transparent);

}

.cell:focus-within,

.cell:focus {

  z-index: 1;

  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent) inset;

}



/* Responsiveness */

@media (max-width: 1100px) {

  .app-grid {

    grid-template-columns: 1.2fr 1.8fr;

  }

}

@media (max-width: 900px) {

  .year-calendar {

    grid-template-columns: repeat(2, 1fr);

  }

}

@media (max-width: 720px) {

  .app-grid {

    grid-template-columns: 1fr;

  }

  .pane-clock {

    order: -1; /* stack clock above calendar */

  }

  .month-grid .cell {

    min-height: 44px; /* keep tap target >= 40px */

  }

}



/* Utilities */

.visually-hidden {

  position: absolute !important;

  height: 1px; width: 1px;

  overflow: hidden;

  clip: rect(1px, 1px, 1px, 1px);

  white-space: nowrap;

  clip-path: inset(50%);

}



/* Fine rules for separators */

hr.rule {

  border: none;

  border-top: 1px solid var(--rule);

  margin: var(--space-2) 0;

}