/* Nord palette: https://www.nordtheme.com/docs/colors-and-palettes */
:root {
  /* Polar Night */
  --nord0: #2e3440;
  --nord1: #3b4252;
  --nord2: #434c5e;
  --nord3: #4c566a;
  /* Snow Storm */
  --nord4: #d8dee9;
  --nord5: #e5e9f0;
  --nord6: #eceff4;
  /* Frost */
  --nord7: #8fbcbb;
  --nord8: #88c0d0;
  --nord9: #81a1c1;
  --nord10: #5e81ac;
  /* Aurora (status colors for widgets) */
  --nord11: #bf616a;
  --nord12: #d08770;
  --nord13: #ebcb8b;
  --nord14: #a3be8c;
  --nord15: #b48ead;

  /* nordtheme.com dark-mode page bg: darken(4.5%, nord0) */
  --bg: #242933;
  --panel: var(--nord1);
  --panel-raised: var(--nord2);
  --muted: var(--nord3);
  --text: var(--nord4);
  --text-bright: var(--nord6);
  --accent: var(--nord8);

  --font-mono: "Source Code Pro", ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;

  --radius: 12px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  /* Same typefaces as nordtheme.com */
  font-family: "Rubik", "Helvetica Neue", Roboto, system-ui, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

main {
  width: min(720px, 100% - 32px);
  margin: 0 auto;
  padding: 12vh 0 48px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* --- clock: seven-segment display, sized in em off its font-size --- */

#clock {
  --seg-on: var(--accent);
  --seg-off: rgb(67 76 94 / 0.45); /* unlit "ghost" segments; set to transparent to hide */
  --t: 0.11em;   /* segment thickness */
  --gap: 0.015em; /* space between segments */
  --glow: drop-shadow(0 0 0.06em rgb(136 192 208 / 0.45)); /* lit segments only */

  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.12em;
  font-size: clamp(4rem, 14vw, 7rem);
  height: 1em;
  /* transform: skewX(-6deg); */
}

.digit {
  position: relative;
  width: 0.54em;
  height: 1em;
}

/* .seg positions the segment and carries the glow; its <i> is the clipped shape. */
.seg {
  position: absolute;
}

.seg > i {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--seg-off);
}

.seg.on {
  filter: var(--glow);
}

.seg.on > i {
  background: var(--seg-on);
}

/* horizontal: a (top), g (middle), d (bottom) */
.seg-a,
.seg-g,
.seg-d {
  left: calc(var(--t) / 2 + var(--gap));
  right: calc(var(--t) / 2 + var(--gap));
  height: var(--t);
}
.seg-a > i,
.seg-g > i,
.seg-d > i {
  clip-path: polygon(0 50%, calc(var(--t) / 2) 0, calc(100% - var(--t) / 2) 0,
                     100% 50%, calc(100% - var(--t) / 2) 100%, calc(var(--t) / 2) 100%);
}
.seg-a { top: 0; }
.seg-g { top: calc(50% - var(--t) / 2); }
.seg-d { bottom: 0; }

/* vertical: f/b (upper left/right), e/c (lower left/right) */
.seg-b,
.seg-c,
.seg-e,
.seg-f {
  width: var(--t);
  height: calc(50% - var(--t) / 2 - 2 * var(--gap));
}
.seg-b > i,
.seg-c > i,
.seg-e > i,
.seg-f > i {
  clip-path: polygon(50% 0, 100% calc(var(--t) / 2), 100% calc(100% - var(--t) / 2),
                     50% 100%, 0 calc(100% - var(--t) / 2), 0 calc(var(--t) / 2));
}
.seg-f,
.seg-b { top: calc(var(--t) / 2 + var(--gap)); }
.seg-e,
.seg-c { bottom: calc(var(--t) / 2 + var(--gap)); }
.seg-f,
.seg-e { left: 0; }
.seg-b,
.seg-c { right: 0; }

.colon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.28em;
  height: 1em;
  padding: 0 0.04em;
}

.colon span {
  width: var(--t);
  height: var(--t);
  background: var(--seg-off);
}

.colon.on span {
  background: var(--seg-on);
  filter: var(--glow);
}

/* --- search --- */

#search-form {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  height: 56px;
  background: var(--panel);
  border: 1px solid var(--panel-raised);
  border-radius: var(--radius);
  transition: border-color 120ms ease;
}

#search-form:focus-within {
  border-color: var(--accent);
}

.search-icon {
  flex: none;
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--nord9);
  stroke-width: 2;
  stroke-linecap: round;
}

#search {
  flex: 1;
  min-width: 0;
  height: 100%;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  font-size: 1.1rem;
  color: var(--text-bright);
  caret-color: var(--accent);
}

/* --- links --- */

.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.group {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  background: var(--panel);
  border-radius: var(--radius);
  overflow: hidden;
}

.group h2 {
  margin: 0;
  padding: 10px 16px;
  background: var(--panel-raised);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nord9);
}

.group ul {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

.group a {
  display: block;
  padding: 6px 16px;
  color: var(--text);
  text-decoration: none;
}

.group a:hover,
.group a:focus-visible {
  color: var(--accent);
  background: var(--panel-raised);
  outline: none;
}