/* ==========================================================================
   Pulse - custom new-tab page
   Design tokens: one accent (aurora mint) on a deep-space navy. System fonts.
   ========================================================================== */

:root {
  --bg: #070b14;
  --bg-raised: rgba(148, 178, 255, 0.06);
  --bg-card: rgba(10, 15, 26, 0.75);
  --border: rgba(148, 178, 255, 0.14);
  --text: #e9eef8;
  --text-dim: #a3aec6;
  --accent: #7cf5c8;
  --accent-soft: rgba(124, 245, 200, 0.14);
  --accent-text-on: #081018;
  --danger: #ff9a9a;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
}

/* ---------- reset ---------- */

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

h1, h2, p, ul, figure { margin: 0; }

/* ---------- backdrop layers ---------- */

body {
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(120% 90% at 50% 0%, #0c1322 0%, var(--bg) 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

#starfield {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  display: block;
}

.aurora {
  position: fixed;
  inset: -25%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38% 46% at 22% 28%, rgba(124, 245, 200, 0.13), transparent 70%),
    radial-gradient(44% 40% at 78% 18%, rgba(64, 180, 160, 0.10), transparent 70%),
    radial-gradient(50% 44% at 62% 86%, rgba(124, 245, 200, 0.07), transparent 70%);
  filter: blur(42px);
  animation: aurora-drift 56s ease-in-out infinite alternate;
  will-change: transform;
}

@keyframes aurora-drift {
  from { transform: translate3d(-3%, -2%, 0) rotate(-2deg) scale(1); }
  to   { transform: translate3d(3%, 2%, 0) rotate(2deg) scale(1.07); }
}

::selection { background: var(--accent-soft); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
:focus:not(:focus-visible) { outline: none; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- top bar ---------- */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
}

.wordmark {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- buttons ---------- */

.btn {
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-text-on);
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  padding: 9px 16px;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.btn:hover { filter: brightness(1.1); }

.btn-ghost {
  background: var(--bg-raised);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover { border-color: var(--accent); filter: none; }

.icon-btn {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
  backdrop-filter: blur(8px);
}

.icon-btn:hover { color: var(--text); border-color: var(--accent); }

/* ---------- hero: greeting, clock, date ---------- */

.page {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 3.2vh, 30px);
  padding: 100px 20px 130px;
  text-align: center;
}

.greeting {
  font-size: clamp(1.05rem, 2.2vw, 1.45rem);
  font-weight: 500;
  color: var(--text-dim);
}

.clock {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.22em;
  font-size: clamp(4rem, 13vw, 9.25rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.clock-meta {
  display: inline-flex;
  align-items: baseline;
  gap: 0.28em;
  font-size: clamp(0.95rem, 2.4vw, 1.5rem);
  font-weight: 600;
  color: var(--text-dim);
}

#clock-seconds {
  color: var(--accent);
  border-left: 1px solid var(--border);
  padding-left: 0.42em;
}

.date {
  margin-top: -0.5em;
  color: var(--text-dim);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
}

/* ---------- focus quote ---------- */

.quote {
  max-width: min(560px, 100%);
  margin-top: -0.45em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}

.quote-text {
  font-size: clamp(0.92rem, 1.9vw, 1.05rem);
  font-style: italic;
  line-height: 1.6;
  color: var(--text-dim);
}

.quote-text::before { content: "\201C"; color: var(--accent); }
.quote-text::after { content: "\201D"; color: var(--accent); }

.quote-author {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- search ---------- */

.search {
  width: min(560px, 100%);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border-radius: 999px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-icon { color: var(--text-dim); flex: none; }

.search input {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1.02rem;
  color: var(--text);
  background: none;
  border: 0;
}

.search input::placeholder { color: var(--text-dim); }
.search input::-webkit-search-cancel-button { -webkit-appearance: none; }

/* ---------- quick links ---------- */

.link-grid {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 660px;
}

.link-grid li { position: relative; }

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  width: 86px;
  padding: 15px 8px 12px;
  border-radius: var(--radius);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  backdrop-filter: blur(8px);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.tile:hover { transform: translateY(-2px); border-color: var(--accent); }

.tile-icon { width: 24px; height: 24px; border-radius: 6px; flex: none; }

.tile-letter {
  display: grid;
  place-items: center;
  width: 24px; height: 24px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.tile-label {
  max-width: 100%;
  font-size: 0.76rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tile:hover .tile-label { color: var(--text); }

.tile-remove {
  position: absolute;
  top: 6px; right: 6px;
  width: 20px; height: 20px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(7, 11, 20, 0.85);
  color: var(--text-dim);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease;
}

.link-grid li:hover .tile-remove,
.link-grid li:focus-within .tile-remove,
.tile-remove:focus-visible { opacity: 1; }

.tile-remove:hover { color: var(--danger); }

@media (hover: none) {
  .tile-remove { opacity: 1; }
}

.tile-add {
  cursor: pointer;
  font: inherit;
  border: 1px dashed var(--border);
}

.tile-add svg { color: var(--accent); }
.tile-add:hover { border-color: var(--accent); }

/* ---------- APOD card ---------- */

.apod {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  width: min(370px, calc(100vw - 40px));
  padding: 12px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  text-align: left;
}

.apod[hidden] { display: none; }

.apod-thumb {
  width: 64px; height: 64px;
  border-radius: 12px;
  object-fit: cover;
  flex: none;
  background: var(--bg-raised);
}

.apod-info { flex: 1; min-width: 0; }

.apod-label {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 3px;
}

.apod-title {
  font-size: 0.86rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.apod-note {
  margin-top: 2px;
  font-size: 0.72rem;
  color: var(--text-dim);
}

.apod .btn { flex: none; }

/* ---------- hints footer ---------- */

.hints {
  position: fixed;
  left: 22px;
  bottom: 20px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.74rem;
  color: var(--text-dim);
}

kbd {
  font: inherit;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text);
}

/* ---------- dialogs ---------- */

.dialog {
  position: fixed;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: #0c1220;
  color: var(--text);
  padding: 26px;
  width: min(480px, calc(100vw - 40px));
  box-shadow: var(--shadow);
}

.dialog-wide { width: min(640px, calc(100vw - 40px)); }

.dialog::backdrop {
  background: rgba(4, 7, 14, 0.65);
  backdrop-filter: blur(4px);
}

.dialog h2 { font-size: 1.15rem; margin-bottom: 18px; }

.dialog-close { position: absolute; top: 14px; right: 14px; width: 32px; height: 32px; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  text-align: left;
}

.field label { font-size: 0.8rem; color: var(--text-dim); }

.field input,
.apod-date-form input[type="date"] {
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color-scheme: dark;
}

.check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
  font-size: 0.92rem;
  text-align: left;
  cursor: pointer;
}

.check input {
  width: 16px; height: 16px;
  accent-color: var(--accent);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.form-error {
  color: var(--danger);
  font-size: 0.82rem;
  text-align: left;
}

.settings-links {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  text-align: left;
}

.settings-subhead {
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.settings-row { display: flex; flex-wrap: wrap; gap: 10px; }

.settings-status {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--accent);
}

.settings-status.is-error { color: var(--danger); }

.apod-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: left;
}

.apod-media { text-align: left; }

.apod-media img,
.apod-media iframe,
.apod-media video {
  display: block;
  width: 100%;
  border-radius: 14px;
  margin-top: 14px;
  background: var(--bg-raised);
}

.apod-media iframe,
.apod-media video {
  aspect-ratio: 16 / 9;
  border: 0;
}

.apod-explain {
  margin-top: 14px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-dim);
  text-align: left;
  max-height: 220px;
  overflow-y: auto;
}

.apod-date-form {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-top: 18px;
}

.apod-date-form .field { margin-bottom: 0; flex: 1; }
.apod-date-form .btn { margin-bottom: 1px; }

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .hints { display: none; }
  .apod { right: 12px; bottom: 12px; }
  .page { padding-bottom: 170px; }
  .tile { width: 78px; }
}

@media (max-width: 400px) {
  .clock { font-size: clamp(3.4rem, 16vw, 5rem); }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .aurora { animation: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}