/* ========================================
   osakaodyssey.com — Main Stylesheet
   Japanese Interior Design & Home Aesthetics
   ======================================== */

/* ─── CSS Custom Properties ─── */
:root {
  /* Colors */
  --bg-primary: #F4F1EA;
  --bg-secondary: #111111;
  --accent: #D46A46;
  --accent-dark: #b85a38;
  --text-primary: #1A1A1A;
  --text-secondary: #6B6B6B;
  --text-light: #F4F1EA;
  --text-muted: #B8B2A6;
  --border-light: rgba(26, 26, 26, 0.12);
  --border-medium: rgba(26, 26, 26, 0.22);
  --border-subtle: rgba(26, 26, 26, 0.06);

  /* Typography */
  --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --section-pad-y: 8vh;
  --container-max: 1400px;
  --container-pad-x: 4vw;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s ease;
}

/* ─── Reset & Base ─── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ─── Grain Texture Overlay ─── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.04;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 9999;
}

/* ─── Typography ─── */
.heading-1 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(44px, 5.5vw, 84px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.heading-2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(32px, 3.2vw, 56px);
  line-height: 1.0;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.heading-3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(22px, 1.8vw, 34px);
  line-height: 1.05;
  color: var(--text-primary);
}

.eyebrow {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
}

.body-text {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.65;
  color: var(--text-secondary);
}

.meta-text {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Layout Containers ─── */
.container {
  width: 92vw;
  max-width: var(--container-max);
  margin: 0 auto;
}

.container-narrow {
  width: 92vw;
  max-width: 800px;
  margin: 0 auto;
}

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  background-color: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--accent-dark);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
  position: relative;
}

.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--text-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium);
}

.btn-ghost:hover::after {
  transform: scaleX(1);
}

/* ─── Cards ─── */
.card {
  border: 1px solid var(--border-light);
  background-color: var(--bg-primary);
  transition: transform var(--transition-medium), border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-medium);
}

.card__image {
  overflow: hidden;
  position: relative;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.card:hover .card__image img {
  transform: scale(1.03);
}

.card__content {
  padding: clamp(16px, 1.5vw, 24px);
}

.card__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.card__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(18px, 1.4vw, 26px);
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}

.card:hover .card__title {
  color: var(--text-secondary);
}

.card__meta {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Featured Card (Wide) ─── */
.card-featured {
  display: grid;
  grid-template-columns: 56% 44%;
  border: 1px solid var(--border-light);
  background-color: var(--bg-primary);
}

.card-featured__image {
  overflow: hidden;
  position: relative;
}

.card-featured__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.card-featured:hover .card-featured__image img {
  transform: scale(1.03);
}

.card-featured__content {
  padding: clamp(22px, 2.6vw, 44px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-featured__label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 16px;
}

.card-featured__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(24px, 2.4vw, 42px);
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.card-featured__excerpt {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ─── Topic Pills ─── */
.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border: 1px solid var(--border-light);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.pill:hover {
  background-color: rgba(26, 26, 26, 0.06);
  border-color: var(--border-medium);
}

/* ─── Email Form ─── */
.email-form {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 520px;
}

.email-form input[type="email"] {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border-light);
  background-color: transparent;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.email-form input[type="email"]:focus {
  border-color: var(--text-secondary);
}

.email-form input[type="email"]::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ─── Header / Navigation ─── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 24px var(--container-pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.site-header > * {
  pointer-events: auto;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 24px;
}

.header-btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: opacity var(--transition-fast);
}

.header-btn:hover {
  opacity: 0.6;
}

.hamburger-lines {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.hamburger-lines span {
  display: block;
  height: 1px;
  background-color: var(--text-primary);
  transition: transform var(--transition-medium), opacity var(--transition-fast);
}

/* Menu Overlay */
.menu-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--bg-primary);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-medium);
}

.menu-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.menu-overlay__close {
  position: absolute;
  top: 24px;
  right: var(--container-pad-x);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.menu-overlay__close:hover {
  opacity: 0.6;
}

.menu-overlay__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

.menu-overlay__nav a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1.1;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.menu-overlay__nav a:hover {
  color: var(--accent);
}

.menu-overlay__newsletter {
  text-align: center;
}

.menu-overlay__newsletter p {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ─── Footer ─── */
.site-footer {
  background-color: var(--bg-secondary);
  color: var(--text-light);
  padding: 8vh 0 6vh;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 64px;
}

.footer-column h4 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 10px;
}

.footer-column a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14px;
  color: var(--text-light);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer-column a:hover {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(244, 241, 234, 0.12);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-muted);
}

/* ─── SVG Scene Section ─── */
.svg-scene-section {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.svg-scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ─── Section: Title + Subscribe ─── */
.title-section {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background-color: var(--bg-primary);
  padding: 0 var(--container-pad-x);
}

.title-section__eyebrow {
  margin-bottom: 20px;
}

.title-section__headline {
  max-width: 900px;
  margin-bottom: 20px;
}

.title-section__subheadline {
  max-width: 560px;
  margin-bottom: 36px;
}

.title-section__microcopy {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Section: Featured Article ─── */
.featured-section {
  padding: var(--section-pad-y) 0;
  background-color: var(--bg-primary);
}

/* ─── Section: Editorial Grid ─── */
.editorial-grid-section {
  padding: var(--section-pad-y) 0;
  background-color: var(--bg-primary);
}

.editorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ─── Section: Topics + Newsletter ─── */
.topics-section {
  padding: 10vh 0;
  background-color: var(--bg-primary);
  text-align: center;
}

.topics-section__heading {
  margin-bottom: 32px;
}

.topics-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 64px;
}

.newsletter-block {
  max-width: 560px;
  margin: 0 auto;
}

.newsletter-block__heading {
  margin-bottom: 20px;
}

.newsletter-block__microcopy {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Utility Classes ─── */
.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;
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* ─── Responsive: Tablet ─── */
@media (max-width: 1024px) {
  .editorial-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .card-featured {
    grid-template-columns: 1fr;
  }

  .card-featured__image {
    aspect-ratio: 16 / 9;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ─── Cookie Consent Banner ─── */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-light);
  padding: 20px var(--container-pad-x);
  z-index: 3000;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

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

.cookie-banner__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-banner__text {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-secondary);
  flex: 1;
  min-width: 260px;
}

.cookie-banner__text a {
  color: var(--accent);
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.cookie-banner__accept {
  padding: 10px 20px;
  background-color: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  border-radius: 999px;
  cursor: pointer;
  border: none;
  transition: background-color var(--transition-fast);
}

.cookie-banner__accept:hover {
  background-color: var(--accent-dark);
}

.cookie-banner__essential {
  padding: 10px 20px;
  background-color: transparent;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.cookie-banner__essential:hover {
  background-color: rgba(26, 26, 26, 0.06);
}

/* ─── Card Aspect Ratios ─── */
.card__image--4-3 {
  aspect-ratio: 4 / 3;
}

.card-featured__image {
  aspect-ratio: 3 / 2;
}

/* ─── Scroll Reveal Base ─── */
[data-reveal] {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }
[data-reveal-delay="4"] { transition-delay: 0.4s; }
[data-reveal-delay="5"] { transition-delay: 0.5s; }

/* ─── Responsive: Mobile ─── */
@media (max-width: 640px) {
  :root {
    --section-pad-y: 6vh;
  }

  .editorial-grid {
    grid-template-columns: 1fr;
  }

  .email-form {
    flex-direction: column;
  }

  .email-form .btn-primary {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .title-section__headline {
    font-size: clamp(32px, 8vw, 44px);
  }

  .cookie-banner__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}