/* Horizon Drift — Sleep Schedule Guides */

:root {
  --color-bg-deep: #0b0f19;
  --color-bg-card: #141a29;
  --color-text: #d1c7bd;
  --color-text-muted: #9a9189;
  --color-accent: #e2a76f;
  --color-accent-dim: #b8844f;
  --color-border: rgba(209, 199, 189, 0.12);
  --color-overlay: rgba(11, 15, 25, 0.72);
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Nunito Sans', system-ui, sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.35);
  --transition-fast: 0.3s ease;
  --transition-slow: 0.5s ease;
  --max-width: 72rem;
  --header-height: 4.5rem;
  --photopic-brightness: 1;
  --photopic-contrast: 1;
  --photopic-saturate: 1;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
  filter: brightness(var(--photopic-brightness)) contrast(var(--photopic-contrast)) saturate(var(--photopic-saturate));
  transition: filter var(--transition-slow);
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-text);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

ul {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.35;
  color: var(--color-text);
}

h1 {
  font-size: clamp(1.3rem, 3vw, 2.75rem);
}

h2 {
  font-size: clamp(1.2rem, 2vw, 2.125rem);
}

h3 {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

p:last-child {
  margin-bottom: 0;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-narrow {
  max-width: 48rem;
}

/* Header — stays independent; mobile menu is outside page-wrapper */
.site-header {
  position: relative;
  z-index: 50;
  padding: var(--space-md) 0;
  background: linear-gradient(180deg, rgba(11, 15, 25, 0.95) 0%, transparent 100%);
  isolation: isolate;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.brand-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.brand-text:hover {
  color: var(--color-accent);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex: 1;
  justify-content: flex-end;
  min-width: 0;
}

.header-controls .menu-toggle {
  order: 10;
}

.photopic-control {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.photopic-label {
  white-space: nowrap;
}

.photopic-slider {
  width: 5rem;
  height: 0.25rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.nav-desktop {
  display: none;
}

.nav-desktop-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  align-items: center;
}

.nav-desktop-list a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
}

.nav-desktop-list a:hover {
  color: var(--color-accent);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-sm);
  background: rgba(20, 26, 41, 0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  backdrop-filter: blur(8px);
  flex-shrink: 0;
  margin-left: auto;
}

.menu-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle-active .menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle-active .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle-active .menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: block;
  }

  .menu-toggle {
    display: none;
  }
}

/* Mobile menu — outside header & page-wrapper */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
  visibility: hidden;
}

.mobile-menu-open {
  pointer-events: auto;
  visibility: visible;
}

.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 25, 0.65);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.mobile-menu-open .mobile-menu-backdrop {
  opacity: 1;
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(100%, 20rem);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-card);
  border-left: 1px solid var(--color-border);
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.45);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.mobile-menu-open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-menu-label {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0;
}

.mobile-menu-close {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.mobile-menu-close:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.mobile-menu-list {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  gap: var(--space-xs);
}

.mobile-menu-list a {
  display: block;
  padding: var(--space-md) var(--space-sm);
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mobile-menu-list a:hover,
.mobile-menu-list a:focus-visible {
  background: rgba(226, 167, 111, 0.1);
  color: var(--color-accent);
}

body.mobile-menu-active {
  overflow: hidden;
}

body.mobile-menu-active .site-header {
  z-index: 40;
}

@media (min-width: 1024px) {
  .mobile-menu {
    display: none;
  }
}

/* Main */
main {
  flex: 1;
}

/* Full-width banner */
.banner-full {
  position: relative;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  min-height: clamp(18rem, 50vh, 28rem);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.banner-full-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.banner-full-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-full-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(11, 15, 25, 0.88) 0%,
    rgba(11, 15, 25, 0.55) 50%,
    rgba(20, 26, 41, 0.75) 100%
  );
}

.banner-full-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  max-width: 40rem;
}

.banner-full-content h1 {
  margin-bottom: var(--space-md);
}

.banner-full-content p {
  font-size: 1.0625rem;
}

/* Sections */
.section-block {
  padding: var(--space-xl) 0;
}

.section-block-alt {
  background: var(--color-bg-card);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  margin-top: var(--space-sm);
}

/* Horizon drift — horizontal scroll strip */
.drift-strip {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  -webkit-overflow-scrolling: touch;
}

.drift-strip::-webkit-scrollbar {
  height: 4px;
}

.drift-strip::-webkit-scrollbar-thumb {
  background: var(--color-accent-dim);
  border-radius: 4px;
}

.drift-card {
  flex: 0 0 min(85%, 22rem);
  scroll-snap-align: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(8px);
}

.drift-card-visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
  aspect-ratio: 16 / 10;
}

.drift-card-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Grid layouts */
.grid-two {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

.grid-three {
  display: grid;
  gap: var(--space-lg);
}

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

  .grid-three {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cards */
.glass-card {
  background: rgba(20, 26, 41, 0.65);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
}

.card-image-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
  aspect-ratio: 4 / 3;
  max-height: 14rem;
}

.card-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-bg-deep);
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background: var(--color-accent-dim);
  color: var(--color-bg-deep);
}

.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(226, 167, 111, 0.15);
  color: var(--color-text);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
}

/* Melatonin simulator */
.simulator-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.simulator-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: flex-end;
  margin-bottom: var(--space-lg);
}

.form-field {
  flex: 1;
  min-width: 10rem;
}

.form-field label {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--color-bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
}

.curve-canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  max-height: 20rem;
  background: var(--color-bg-deep);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.curve-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.simulator-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-md);
  font-size: 0.8125rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.legend-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
}

.legend-melatonin {
  background: #7b6ba8;
}

.legend-cortisol {
  background: var(--color-accent);
}

/* Timeline (circadian page) */
.timeline-split {
  display: grid;
  gap: var(--space-lg);
}

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

.timeline-column {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
}

.timeline-entry {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.timeline-entry:last-child {
  border-bottom: none;
}

.timeline-time {
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: 600;
}

/* Winddown steps */
.step-list {
  counter-reset: step;
}

.step-item {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
  counter-increment: step;
}

@media (min-width: 768px) {
  .step-item {
    grid-template-columns: 8rem 1fr;
    align-items: start;
  }
}

.step-marker {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-accent);
  opacity: 0.6;
}

.step-marker::before {
  content: counter(step, decimal-leading-zero);
}

/* Sleep debt arcs */
.metrics-grid {
  display: grid;
  gap: var(--space-lg);
  justify-items: center;
}

.metric-arc {
  width: 10rem;
  height: 10rem;
  position: relative;
}

.metric-arc svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.metric-arc-label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 0.875rem;
}

.metric-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-accent);
}

/* Products */
.product-card {
  text-align: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-price {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-accent);
  margin: var(--space-md) 0;
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(120px, 1fr);
  gap: var(--space-xl);
}

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.875rem;
}

.checkbox-row input {
  margin-top: 0.25rem;
  accent-color: var(--color-accent);
}

.map-embed {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  min-height: 16rem;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  min-height: 16rem;
  border: 0;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-info-item {
  padding: var(--space-md);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-info-item strong {
  display: block;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  font-size: 0.875rem;
}

/* Legal pages */
.legal-content {
  max-width: 48rem;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-xl);
}

.legal-content h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.legal-content h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
  font-size: 1.0625rem;
}

.legal-content ul {
  list-style: disc;
  margin-left: var(--space-lg);
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

.legal-content li {
  margin-bottom: var(--space-sm);
}

.legal-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* Thank you & 404 */
.status-page {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.status-icon {
  font-size: 3rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-card);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-md);
}

.footer-nav a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.footer-meta p {
  margin-bottom: var(--space-xs);
}

/* Cookie consent popup */
.consent-popup {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  z-index: 300;
  max-width: 28rem;
  margin: 0 auto;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(120%);
  transition:
    transform var(--transition-slow),
    opacity var(--transition-fast),
    visibility var(--transition-fast);
}

.consent-popup-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.consent-popup-leaving {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(120%);
}

.consent-popup p {
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.consent-actions .btn-primary,
.consent-actions .btn-secondary {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

/* Utility */
.text-center {
  text-align: center;
}

.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;
}

.spacer-sm {
  margin-top: var(--space-md);
}

.section-header-left {
  text-align: left;
  margin-left: 0;
  margin-right: 0;
}

.btn-group-start {
  justify-content: flex-start;
}

.note-small {
  font-size: 0.8125rem;
}

@media (max-width: 767px) {
  .section-block {
    padding: var(--space-lg) 0;
  }

  .photopic-control {
    display: none;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .photopic-control {
    font-size: 0.6875rem;
  }

  .photopic-slider {
    width: 4rem;
  }
}