/* ==========================================================================
   Sonder — "Electric, alive, performative"
   Deep violet-black, gradient display type, glow surfaces, venue energy
   ========================================================================== */

/* Page-level overrides — violet-black world
   ========================================================================== */

.page-sonder {
  background:
    radial-gradient(circle at 30% 20%, rgba(124, 92, 255, 0.08), transparent 40%),
    #08060f;
}

.page-sonder .site-shell {
  background: #08060f;
}

.page-sonder .site-main {
  background:
    radial-gradient(ellipse at 50% -10%, rgba(124, 92, 255, 0.18), transparent 50%),
    radial-gradient(circle at 5% 50%, rgba(0, 229, 199, 0.06), transparent 35%),
    radial-gradient(circle at 95% 60%, rgba(124, 92, 255, 0.08), transparent 30%),
    #08060f;
  color: #e0dce8;
}

.page-sonder .nav__link--active {
  color: var(--sonder-pulse);
}

/* Text color temperature — warm violet-white
   ========================================================================== */

.page-sonder .section__marker-number {
  background: var(--sonder-mix);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-sonder .section__marker-label {
  color: #8a7ea0;
}

.page-sonder .section__title {
  font-family: var(--font-display);
  letter-spacing: 0.03em;
  color: #f0ecf5;
}

/* Hero — Audio Spectrum with gradient title
   ========================================================================== */

.sonder-hero {
  position: relative;
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  padding-top: calc(5rem + var(--space-12));
  overflow: hidden;
}

.sonder-hero__spectrum {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: end center;
  pointer-events: none;
}

.sonder-hero__svg {
  width: 100%;
  max-width: 960px;
  height: auto;
}

.sonder-hero__bar {
  opacity: 0.25;
  transform-origin: center bottom;
}

.sonder-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: var(--space-6);
  text-align: center;
}

.sonder-hero__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-ultra);
  text-transform: uppercase;
  color: var(--sonder-pulse);
  opacity: 0.5;
}

.sonder-hero__title {
  font-family: var(--font-display);
  font-size: clamp(4rem, 2.5rem + 5vw, 9rem);
  line-height: 0.9;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: linear-gradient(135deg, #00e5c7 0%, #7c5cff 50%, #00e5c7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 40px rgba(0, 229, 199, 0.15));
}

.sonder-hero__subtitle {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  letter-spacing: 0.04em;
  color: #8a7ea0;
}

.sonder-hero__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #6b5f80;
}

.sonder-hero__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--sonder-pulse);
  box-shadow: 0 0 0.75rem var(--sonder-pulse-glow);
  animation: sonderStatusPulse 1.5s ease-in-out infinite;
}

/* Section 01 — "How Sonder Reads the Room"
   ========================================================================== */

.sonder-reads__grid {
  display: grid;
  gap: var(--space-12);
}

.sonder-reads__content {
  max-width: 55ch;
}

.sonder-reads__copy {
  color: #9e95b0;
  font-size: var(--text-base);
}

.sonder-reads__copy + .sonder-reads__copy {
  margin-top: var(--space-4);
}

.sonder-reads__visual {
  display: grid;
  place-items: center;
}

.sonder-reads__svg {
  width: 100%;
  max-width: 300px;
  filter: drop-shadow(0 0 30px rgba(0, 229, 199, 0.1));
}

.sonder-reads__ring {
  transform-origin: center;
}

.sonder-reads__center {
  transform-origin: center;
}

/* Section divider — audio waveform
   ========================================================================== */

.sonder-divider {
  width: 100%;
  padding-block: var(--space-2);
  overflow: hidden;
}

.sonder-divider__svg {
  display: block;
  width: 100%;
  height: 2.5rem;
}

.sonder-divider__path {
  vector-effect: non-scaling-stroke;
}

/* Section 02 — "Three Layers. One Performance." (stage cards)
   No borders — everything floats on glow
   ========================================================================== */

.sonder-flow__grid {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-8);
}

.sonder-stage {
  position: relative;
  padding: var(--space-8) var(--space-8) var(--space-8) var(--space-10);
  background:
    radial-gradient(circle at 0% 50%, rgba(0, 229, 199, 0.05), transparent 60%),
    rgba(124, 92, 255, 0.03);
  transition: box-shadow var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out);
}

.sonder-stage::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--sonder-mix);
  opacity: 0.6;
}

.sonder-stage:hover {
  background:
    radial-gradient(circle at 0% 50%, rgba(0, 229, 199, 0.1), transparent 60%),
    rgba(124, 92, 255, 0.06);
  box-shadow:
    0 0 50px rgba(0, 229, 199, 0.08),
    0 0 100px rgba(124, 92, 255, 0.05);
}

.sonder-stage:hover::before {
  opacity: 1;
}

.sonder-stage__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.sonder-stage__number {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-ultra);
  background: var(--sonder-mix);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sonder-stage__icon-area {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
}

.sonder-stage__icon {
  width: 2rem;
  height: 2rem;
  color: var(--sonder-pulse);
  filter: drop-shadow(0 0 6px rgba(0, 229, 199, 0.35));
}

.sonder-stage__title {
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: var(--leading-snug);
  letter-spacing: 0.03em;
  color: #f0ecf5;
}

.sonder-stage__copy {
  max-width: 42ch;
  color: #9e95b0;
  font-size: var(--text-base);
}

/* Status section
   ========================================================================== */

.sonder-status__inner {
  text-align: center;
}

.sonder-status__copy {
  max-width: 62ch;
  margin-inline: auto;
  color: #9e95b0;
  font-size: var(--text-base);
}

.sonder-status__copy + .sonder-status__copy {
  margin-top: var(--space-4);
}

.sonder-status__link {
  color: var(--sonder-pulse);
}

.sonder-status__link:hover,
.sonder-status__link:focus-visible {
  text-decoration: underline;
  text-decoration-color: rgba(0, 229, 199, 0.8);
  text-underline-offset: 0.2em;
}

.page-sonder .status-feed__date { color: #8a7ea0; }
.page-sonder .status-feed__text { color: #9e95b0; }
.page-sonder .status-feed__entry { border-color: rgba(124, 92, 255, 0.08); }

/* Responsive
   ========================================================================== */

@media (min-width: 48rem) {
  .sonder-reads__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-16);
  }

  .sonder-flow__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 90rem) {
  .sonder-reads__grid {
    gap: var(--space-20);
  }

  .sonder-status__inner {
    max-width: 52rem;
    margin-inline: auto;
  }
}

/* Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .sonder-hero__dot {
    animation: none;
  }
}

@keyframes sonderStatusPulse {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(0.88);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}