/* website/css/home.css — hero, feature grid, gallery, spotlight, CTA band (populated in later tasks) */

/* ── hero ── */
#hero { position: relative; overflow: hidden; padding: var(--space-6) 0 var(--space-7); }
.hero-sky {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(160deg, var(--grad-rain-a), var(--grad-rain-b));
  transition: background 2.4s var(--ease-standard);
}
.hero-sky[data-sky="clear"] { background: linear-gradient(160deg, var(--grad-clear-a), var(--grad-clear-b)); }
.hero-sky[data-sky="rain"] { background: linear-gradient(160deg, var(--grad-rain-a), var(--grad-rain-b)); }
.hero-sky[data-sky="overcast"] { background: linear-gradient(160deg, var(--grad-overcast-a), var(--grad-overcast-b)); }

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: var(--space-6);
  align-items: center;
}
.hero-live {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  color: var(--ink-on-dark);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-live);
  animation: nb-blink 1.6s steps(1) infinite;
}
@media (prefers-reduced-motion: reduce) { .live-dot { animation: none; } }
@keyframes nb-blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: .15; } }

#hero h1 { color: var(--ink-on-dark); }
.hero-sub {
  color: var(--ink-on-dark);
  opacity: .85;
  max-width: 42ch;
  margin-top: var(--space-3);
  font-size: 1.05rem;
}
.hero-actions { display: flex; gap: var(--space-1); margin-top: var(--space-4); }
.hero-actions .badge-store { border-color: var(--hairline-dark); color: var(--ink-on-dark); }

.hero-phone { display: flex; flex-direction: column; align-items: center; gap: var(--space-2); }
.phone-frame {
  width: min(300px, 70vw);
  aspect-ratio: 9 / 19.5;
  border-radius: 32px;
  overflow: hidden;
  border: 6px solid var(--bg-void);
  box-shadow: 0 30px 70px rgba(0,0,0,.35);
  animation: nb-breathe 9s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) { .phone-frame { animation: none; } }
@keyframes nb-breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.015); } }
.phone-frame img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

.hero-tabs {
  display: flex;
  border: 1.4px solid var(--hairline-dark);
  width: min(300px, 70vw);
}
.hero-tab {
  flex: 1;
  height: 40px;
  border: none;
  background: transparent;
  color: var(--ink-on-dark);
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .06em;
  cursor: pointer;
}
.hero-tab.is-active { background: var(--ink-on-dark); color: var(--ink-on-light); }

@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-live, .hero-actions { justify-content: center; }
}

/* ── scrub demo ── */
.scrub-demo { margin-top: var(--space-4); max-width: 320px; }
.scrub-readout {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  color: var(--ink-on-dark);
}
.scrub-readout #scrub-temp {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
}
.scrub-readout .eyebrow { color: var(--ink-on-dark); }
.scrub-slider {
  width: 100%;
  margin-top: var(--space-2);
  accent-color: var(--accent-live);
}
.scrub-hint { color: var(--ink-on-dark); margin-top: var(--space-1); }

/* ── accent picker ── */
.accent-picker { display: flex; gap: var(--space-1); margin-top: var(--space-3); }
.accent-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}
.accent-dot.is-active { border-color: var(--ink-on-dark); }

@media (max-width: 860px) {
  .scrub-demo, .accent-picker { margin-left: auto; margin-right: auto; }
  .scrub-readout { justify-content: center; }
}

/* ── features ── */
#features { padding: var(--space-7) 0; }
.section-head { max-width: 46ch; margin-bottom: var(--space-5); }
.section-head .eyebrow { display: block; margin-bottom: var(--space-2); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1.4px solid var(--hairline);
}
.feature-card {
  background: var(--paper);
  padding: var(--space-4);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease-standard), transform .5s var(--ease-standard);
}
.feature-card.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .feature-card { opacity: 1; transform: none; transition: none; }
}
.feature-index {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  opacity: .45;
}
.feature-card h3 { margin: var(--space-2) 0 var(--space-1); text-transform: none; }
.feature-card p { font-size: .92rem; opacity: .75; }
.feature-card--wide { grid-column: span 2; }
.feature-hint { margin-top: var(--space-2); opacity: .55; }
.feature-card--alert { background: var(--bg-void); }
.feature-card--alert h3, .feature-card--alert p { color: var(--ink-on-dark); }
.feature-card--alert .feature-index { color: var(--accent-acid); opacity: 1; }
.feature-card--alert p { opacity: .8; }

@media (max-width: 760px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: span 1; }
}

/* ── gallery ── */
#screenshots { padding-bottom: var(--space-7); }
.gallery-scroll {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scroll-snap-type: x proximity;
}
.gallery-card {
  flex: 0 0 auto;
  width: 220px;
  margin: 0;
  scroll-snap-align: start;
}
.phone-frame--sm {
  width: 100%;
  aspect-ratio: 9 / 19.5;
  border-radius: 24px;
  border-width: 5px;
}
.gallery-card figcaption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  opacity: .6;
  text-align: center;
}

/* ── hazard stripe divider ── */
.hazard-stripe {
  height: 28px;
  background-image: repeating-linear-gradient(115deg, var(--accent-acid) 0 24px, var(--bg-void) 24px 48px);
  background-size: 96px 100%;
}
@media (prefers-reduced-motion: no-preference) {
  .hazard-stripe { animation: nb-stripe 2.4s linear infinite; }
}
@keyframes nb-stripe { 0% { background-position: 0 0; } 100% { background-position: 96px 0; } }

/* ── spotlight ── */
.spotlight { background: var(--bg-void); color: var(--ink-on-dark); padding: var(--space-7) 0; }
.spotlight-inner {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: var(--space-6);
  align-items: center;
}
.spotlight .phone-frame { width: min(280px, 60vw); margin: 0 auto; border-color: var(--ink-on-dark); }
.spotlight-copy .eyebrow { color: var(--accent-acid); opacity: 1; }
.spotlight-copy h2 { margin-top: var(--space-2); }
.spotlight-copy p { margin-top: var(--space-3); max-width: 48ch; opacity: .8; }

/* ── city demo ── */
.city-demo { margin-top: var(--space-4); max-width: 440px; }
.city-demo-label { display: block; margin-bottom: var(--space-2); }
.city-chips { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.city-chip {
  height: 38px;
  padding: 0 var(--space-2);
  background: transparent;
  border: 1.4px solid var(--hairline-dark);
  color: var(--ink-on-dark);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  cursor: pointer;
}
.city-chip.is-active { background: var(--accent-acid); border-color: var(--accent-acid); color: var(--bg-void); }
.city-demo-result { margin-top: var(--space-3); min-height: 64px; }
.city-demo-result .result-city {
  font-family: var(--font-display);
  font-size: 2.4rem;
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .3s var(--ease-standard), transform .3s var(--ease-standard);
}
.city-demo-result .result-city.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .city-demo-result .result-city { transition: none; }
}
.city-demo-result .result-temp { color: var(--accent-acid); }
.city-demo-result .result-meta { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .1em; opacity: .6; margin-top: var(--space-1); }
.city-demo-result .result-status { font-family: var(--font-mono); font-size: .8rem; opacity: .6; }
.city-demo-note { margin-top: var(--space-3); opacity: .5; }

@media (max-width: 860px) {
  .spotlight-inner { grid-template-columns: 1fr; text-align: center; }
  .city-chips, .city-demo-result .result-city { justify-content: center; }
}

/* ── cta band ── */
.cta-band {
  text-align: center;
  padding: var(--space-7) 0;
}
.cta-band .hero-actions { justify-content: center; margin-top: var(--space-4); }
.cta-band .badge-store { color: var(--ink-on-light); border-color: var(--hairline); opacity: .6; }
.cta-note {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  opacity: .5;
}