/* Simple Sound Control landing — palette aligned with extension (purple / surface / containers) */

:root {
  --surface: #fef7ff;
  --surface-container: #f3edf7;
  --on-surface: #1d1b20;
  --on-surface-variant: #49454f;
  --primary: #6750a4;
  --on-primary: #ffffff;
  --primary-container: #eaddff;
  --on-primary-container: #21005e;
  /* Extension “teal” accent for the word Sound */
  --sound-word: #006a60;
  --sound-word-hero: #005a52;
  --outline-variant: #cac4d0;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(103, 80, 164, 0.12);
  --radius-lg: 20px;
  --radius-md: 12px;
  --font: "DM Sans", system-ui, "Segoe UI", Roboto, sans-serif;
  --max: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #141218;
    --surface-container: #211f26;
    --on-surface: #e6e0e9;
    --on-surface-variant: #cac4d0;
    --primary: #d0bcff;
    --on-primary: #381e72;
    --primary-container: #4f378b;
    --on-primary-container: #eaddff;
    --sound-word: #52dbcf;
    --sound-word-hero: #6ee7d8;
    --outline-variant: #49454f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 4px 16px rgba(0, 0, 0, 0.25);
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--on-surface);
  background: var(--surface);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 10px 16px;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: 8px;
  z-index: 100;
}

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--outline-variant);
}

.site-header__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  padding: 0.875rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.logo__img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow);
  flex-shrink: 0;
}

.logo__text {
  font-size: 1.05rem;
}

.logo__sound {
  color: var(--sound-word);
  font-weight: 700;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition:
    transform 0.12s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn--header {
  background: var(--surface-container);
  color: var(--on-primary-container);
  border: 1px solid var(--outline-variant);
}

.btn--header:hover {
  background: var(--primary-container);
}

.btn--primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow);
}

.btn--primary:hover {
  filter: brightness(1.06);
}

.btn--lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: min(78vh, 720px);
  display: grid;
  align-items: end;
}

.hero__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    color-mix(in srgb, var(--surface) 96%, var(--primary)) 0%,
    color-mix(in srgb, var(--surface) 55%, #1d1b20) 42%,
    color-mix(in srgb, var(--primary) 22%, transparent) 100%
  );
}

@media (prefers-color-scheme: dark) {
  .hero__scrim {
    background: linear-gradient(
      to top,
      color-mix(in srgb, var(--surface) 94%, var(--primary)) 0%,
      color-mix(in srgb, var(--surface) 40%, #000) 50%,
      color-mix(in srgb, var(--primary) 18%, transparent) 100%
    );
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  padding: 3rem 0 4rem;
}

.hero__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-primary-container);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.hero__title {
  margin: 0 0 0.35rem;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  text-shadow: 0 2px 24px color-mix(in srgb, var(--surface) 80%, transparent);
}

.hero__title-sound {
  color: var(--sound-word-hero);
  font-weight: 800;
  text-shadow:
    0 0 1px color-mix(in srgb, var(--surface) 90%, transparent),
    0 2px 20px color-mix(in srgb, var(--sound-word-hero) 35%, transparent);
}

.hero__tagline {
  margin: 0 0 1.75rem;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 500;
  max-width: 36ch;
  color: var(--on-surface-variant);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

/* Sections */
.section-title {
  margin: 0 0 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.intro {
  padding: 3.5rem 0 2rem;
}

.intro__lead {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.6;
  max-width: 52ch;
  color: var(--on-surface);
}

.features {
  padding: 2rem 0 4rem;
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  margin: 0;
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius-md);
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--on-surface) 4%, transparent);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.feature-card:hover {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--outline-variant));
  box-shadow: var(--shadow);
}

.feature-card__icon {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  color: var(--primary);
}

.feature-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.feature-card__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

/* CTA band */
.cta-band {
  padding: 3.5rem 0;
  background: linear-gradient(
    120deg,
    var(--primary-container) 0%,
    color-mix(in srgb, var(--surface-container) 70%, var(--primary-container)) 50%,
    var(--surface-container) 100%
  );
  border-block: 1px solid var(--outline-variant);
}

.cta-band__inner {
  text-align: center;
}

.cta-band__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--on-primary-container);
}

.cta-band__text {
  margin: 0 auto 1.5rem;
  max-width: 40ch;
  color: var(--on-surface-variant);
}

/* Footer */
.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--outline-variant);
}

.site-footer__inner {
  text-align: center;
}

.site-footer__credit {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
}

.site-footer__credit a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.site-footer__credit a:hover {
  text-decoration: underline;
}

.site-footer__sep {
  color: var(--outline-variant);
  margin: 0 0.15em;
}

.site-footer__here {
  color: var(--on-surface-variant);
}

/* Privacy / legal */
.legal-page {
  padding: 2.5rem 0 4rem;
}

.legal-page__inner {
  max-width: 42rem;
}

.legal-page__title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--on-surface);
}

.legal-page__updated {
  margin: 0 0 2rem;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.legal-page__body {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--on-surface);
}

.legal-page__body p {
  margin: 0 0 1.25rem;
}

.legal-page__h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--on-primary-container);
}

.legal-page__body a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.legal-page__body a:hover {
  text-decoration: underline;
}

.support-page__faqs .faq-block {
  margin-bottom: 2rem;
}

.support-page__faqs .faq-block:last-child {
  margin-bottom: 0;
}

.support-page__faqs ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.support-page__faqs li {
  margin-bottom: 0.4rem;
}

.support-page__faqs code {
  font-size: 0.9em;
  padding: 0.12em 0.4em;
  border-radius: 4px;
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
}