/* VoiceMotion AI — On-Air Waveform Design System */

:root {
  --onyx: #0A0C0E;
  --graphite: #16181D;
  --bone: #F1F0EC;
  --signal-aqua: #2DD4BF;
  --warm-sand: #D8A657;
  --ash-grey: #878C93;
  --font-heading: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --header-height: 4.5rem;
  --max-width: 72rem;
  --radius: 0.375rem;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--bone);
  background-color: var(--onyx);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--signal-aqua);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color var(--transition);
}

a:hover {
  color: var(--warm-sand);
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); margin-bottom: 0.75rem; }

p { margin: 0 0 1.25rem; }

ul, ol {
  margin: 0 0 1.25rem;
  padding-left: 1.5rem;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

/* Surfaces */
.surface-onyx {
  background-color: var(--onyx);
  color: var(--bone);
}

.surface-bone {
  background-color: var(--bone);
  color: var(--onyx);
}

.surface-graphite {
  background-color: var(--graphite);
  color: var(--bone);
}

.surface-aqua {
  background-color: var(--signal-aqua);
  color: var(--onyx);
}

.surface-bone a { color: var(--graphite); }
.surface-bone a:hover { color: var(--signal-aqua); }

/* Layout */
.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.section--tight {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.grid-2 {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.grid-3 {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition), box-shadow var(--transition);
}

.site-header.is-sticky {
  background-color: rgba(10, 12, 14, 0.95);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(135, 140, 147, 0.15);
}

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

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--bone);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
}

.site-logo:hover {
  color: var(--signal-aqua);
}

.site-logo img {
  width: 2rem;
  height: 2rem;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--bone);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

.site-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--graphite);
  padding: 1.5rem;
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
}

.site-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

@media (min-width: 900px) {
  .site-nav {
    position: static;
    background: none;
    padding: 0;
    transform: none;
    opacity: 1;
    visibility: visible;
  }
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

@media (min-width: 900px) {
  .site-nav ul {
    flex-direction: row;
    gap: 1.75rem;
    align-items: center;
  }
}

.site-nav a {
  display: block;
  padding: 0.5rem 0;
  color: var(--bone);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--signal-aqua);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 12, 14, 0.95) 0%,
    rgba(10, 12, 14, 0.6) 45%,
    rgba(10, 12, 14, 0.35) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  padding: clamp(3rem, 10vw, 6rem) 0;
}

.on-air-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal-aqua);
  margin-bottom: 1.5rem;
}

.on-air-badge::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--signal-aqua);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@media (prefers-reduced-motion: reduce) {
  .on-air-badge::before {
    animation: none;
  }
}

.hero h1 {
  max-width: 18ch;
  margin-bottom: 1.25rem;
}

.hero__slogan {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  color: var(--ash-grey);
  max-width: 42ch;
  margin-bottom: 2rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
  background: var(--signal-aqua);
  color: var(--onyx);
  border-color: var(--signal-aqua);
}

.btn--primary:hover {
  background: transparent;
  color: var(--signal-aqua);
}

.btn--secondary {
  background: transparent;
  color: var(--bone);
  border-color: var(--ash-grey);
}

.btn--secondary:hover {
  border-color: var(--signal-aqua);
  color: var(--signal-aqua);
}

.btn--sand {
  background: var(--warm-sand);
  color: var(--onyx);
  border-color: var(--warm-sand);
}

.btn--sand:hover {
  background: transparent;
  color: var(--warm-sand);
}

/* Cards */
.card {
  background: var(--graphite);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid rgba(135, 140, 147, 0.12);
}

.card h3 {
  color: var(--signal-aqua);
}

.card--bone {
  background: var(--bone);
  color: var(--onyx);
  border-color: rgba(10, 12, 14, 0.08);
}

.card--bone h3 {
  color: var(--onyx);
}

/* Image blocks */
.img-block {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.img-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-block--wide {
  aspect-ratio: 16 / 9;
}

.img-caption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ash-grey);
  margin-top: 0.75rem;
}

/* Page header */
.page-header {
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 2.5rem;
}

.page-header .mono {
  color: var(--signal-aqua);
  margin-bottom: 0.75rem;
}

/* Services list */
.service-item {
  padding: 2rem 0;
  border-bottom: 1px solid rgba(135, 140, 147, 0.15);
}

.service-item:first-child {
  padding-top: 0;
}

.service-item h3 {
  color: var(--signal-aqua);
}

/* FAQ */
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-item {
  border-bottom: 1px solid rgba(135, 140, 147, 0.15);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0;
  background: none;
  border: none;
  color: var(--bone);
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-question::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--signal-aqua);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.is-open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 60rem;
}

.faq-answer__inner {
  padding-bottom: 1.5rem;
  color: var(--ash-grey);
}

/* Work grid */
.work-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}

.work-card img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.work-card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  background: linear-gradient(transparent, rgba(10, 12, 14, 0.9));
}

.work-card__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--signal-aqua);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Form */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--bone);
  background: var(--onyx);
  border: 1px solid rgba(135, 140, 147, 0.3);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--signal-aqua);
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--ash-grey);
  margin-top: 0.375rem;
}

.form-error {
  color: #f87171;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* Contact info */
.contact-block {
  padding: 1.5rem;
  background: var(--graphite);
  border-radius: var(--radius);
  border-left: 3px solid var(--signal-aqua);
}

.contact-block dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ash-grey);
  margin-bottom: 0.25rem;
}

.contact-block dd {
  margin: 0 0 1.25rem;
}

.contact-block dd:last-child {
  margin-bottom: 0;
}

/* Legal */
.legal-content h2 {
  margin-top: 2.5rem;
  font-size: 1.375rem;
}

.legal-content h3 {
  margin-top: 1.75rem;
  font-size: 1.125rem;
}

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}

.legal-content th,
.legal-content td {
  padding: 0.75rem 1rem;
  border: 1px solid rgba(135, 140, 147, 0.2);
  text-align: left;
}

.legal-content th {
  background: var(--graphite);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

/* Footer */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(135, 140, 147, 0.15);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand p {
  color: var(--ash-grey);
  font-size: 0.9375rem;
  max-width: 32ch;
}

.footer-nav h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ash-grey);
  margin: 0 0 1rem;
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: 0.5rem;
}

.footer-nav a {
  color: var(--bone);
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer-nav a:hover {
  color: var(--signal-aqua);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(135, 140, 147, 0.1);
  font-size: 0.8125rem;
  color: var(--ash-grey);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--graphite);
  border-top: 1px solid rgba(135, 140, 147, 0.2);
  padding: 1.5rem;
  transform: translateY(100%);
  transition: transform 0.35s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.cookie-banner p {
  margin: 0;
  font-size: 0.9375rem;
  flex: 1 1 20rem;
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cookie-banner .btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 2100;
  background: rgba(10, 12, 14, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.cookie-modal.is-visible {
  opacity: 1;
  visibility: visible;
}

.cookie-modal__panel {
  background: var(--graphite);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 28rem;
  width: 100%;
}

.cookie-modal__panel h3 {
  margin-bottom: 1rem;
}

.cookie-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(135, 140, 147, 0.12);
}

.cookie-option label {
  font-size: 0.9375rem;
}

.cookie-option input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--signal-aqua);
}

/* Reveal animations */
.js .reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* 404 */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--header-height) 1rem 3rem;
}

.error-page h1 {
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--ash-grey);
  max-width: 40ch;
  margin-inline: auto;
}

/* Thanks page */
.thanks-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.thanks-page .card {
  max-width: 32rem;
  padding: 3rem;
}

/* Utility */
.text-aqua { color: var(--signal-aqua); }
.text-sand { color: var(--warm-sand); }
.text-ash { color: var(--ash-grey); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

main {
  min-height: 50vh;
}

/* Waveform decoration */
.waveform-deco {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 2rem;
}

.waveform-deco span {
  display: block;
  width: 3px;
  background: var(--signal-aqua);
  border-radius: 2px;
  animation: wave 1.2s ease-in-out infinite;
}

.waveform-deco span:nth-child(1) { height: 40%; animation-delay: 0s; }
.waveform-deco span:nth-child(2) { height: 70%; animation-delay: 0.1s; }
.waveform-deco span:nth-child(3) { height: 100%; animation-delay: 0.2s; }
.waveform-deco span:nth-child(4) { height: 60%; animation-delay: 0.3s; }
.waveform-deco span:nth-child(5) { height: 85%; animation-delay: 0.4s; }
.waveform-deco span:nth-child(6) { height: 50%; animation-delay: 0.5s; }
.waveform-deco span:nth-child(7) { height: 75%; animation-delay: 0.6s; }

@keyframes wave {
  0%, 100% { transform: scaleY(0.5); }
  50% { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .waveform-deco span {
    animation: none;
    transform: none;
  }
}