/* ==========================================================================
   ryuseiyamaki.com — shared stylesheet
   Dark, SpaceX-inspired. See DESIGN.md for tokens and rationale.
   ========================================================================== */

/* Fonts */
@font-face {
  font-family: "Artemis";
  src: url("fonts/Artemis_Inter_041621.otf") format("opentype");
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* Tokens */
:root {
  --bg: #0a0a0a;
  --text: #ffffff;
  --text-hover: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.2);
  --text-subtle: rgba(255, 255, 255, 0.12);
  --text-ghost: rgba(255, 255, 255, 0.1);
  --border: rgba(255, 255, 255, 0.06);
  --border-subtle: rgba(255, 255, 255, 0.04);

  --font-display: "Artemis", "Helvetica Neue", Helvetica, sans-serif;
  --font-body: "Helvetica Neue", Helvetica, sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html,
body {
  height: 100%;
}

html {
  background: var(--bg);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;       /* fallback for browsers without dvh support */
  min-height: 100dvh;      /* iOS Safari 15.4+: ignores address bar jitter */
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

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

a:focus-visible {
  outline: 1px solid var(--text-hover);
  outline-offset: 6px;
}

.site-header .logo,
.site-nav a,
.site-footer .links a,
.section-row .title,
.mission-card h2 a,
.mission-card .link,
.article-layout a,
.photo-subsection a,
.booking-grid .value a,
.picks-column a .pick-title,
.contact-layout .value a {
  position: relative;
  display: inline-block;
}

.mission-card h2 a,
.article-layout a,
.photo-subsection a,
.booking-grid .value a,
.contact-layout .value a {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.site-header .logo::after,
.site-nav a::after,
.site-footer .links a::after,
.section-row .title::after,
.mission-card h2 a::after,
.mission-card .link::after,
.article-layout a::after,
.photo-subsection a::after,
.booking-grid .value a::after,
.picks-column a .pick-title::after,
.contact-layout .value a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.22em;
  height: 1px;
  background: currentColor;
  opacity: 0;
  transform: scaleX(0) rotate(-2deg);
  transform-origin: left center;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  pointer-events: none;
}

.site-header .logo:hover::after,
.site-header .logo:focus-visible::after,
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-footer .links a:hover::after,
.site-footer .links a:focus-visible::after,
.section-row:hover .title::after,
.section-row:focus-visible .title::after,
.mission-card h2 a:hover::after,
.mission-card h2 a:focus-visible::after,
.mission-card .link:hover::after,
.mission-card .link:focus-visible::after,
.article-layout a:hover::after,
.article-layout a:focus-visible::after,
.photo-subsection a:hover::after,
.photo-subsection a:focus-visible::after,
.booking-grid .value a:hover::after,
.booking-grid .value a:focus-visible::after,
.picks-column a:hover .pick-title::after,
.picks-column a:focus-visible .pick-title::after,
.contact-layout .value a:hover::after,
.contact-layout .value a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1) rotate(0deg);
}

img {
  max-width: 100%;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header .logo {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text);
}

.site-header .logo:hover {
  color: var(--text-hover);
}

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Footer */
.site-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 40px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.site-footer .links {
  display: flex;
  gap: 24px;
}

/* Homepage — Variant B left stack */
.launchpad {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 80px 40px;
}

.launchpad-inner {
  width: 100%;
  max-width: 700px;
  margin-left: max(40px, calc((100vw - 1200px) / 2));
}

.section-list {
  list-style: none;
}

.section-list li {
  border-top: 1px solid var(--border);
}

.section-list li:last-child {
  border-bottom: 1px solid var(--border);
}

.section-row {
  display: grid;
  grid-template-columns: 48px 1fr auto 24px;
  align-items: baseline;
  gap: 24px;
  padding: 28px 0;
  color: var(--text);
  transition: color 0.3s var(--ease);
}

.section-row .num {
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 2px;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}

.section-row .title {
  justify-self: start;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 2px;
  text-transform: uppercase;
  transform: translateX(0);
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
}

.section-row .subtitle {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.section-row .arrow {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-ghost);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    color 0.3s var(--ease);
}

.section-row:hover {
  color: var(--text-hover);
}

.section-row:hover .title {
  transform: translateX(8px);
  color: var(--text-hover);
}

.section-row:hover .arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--text-hover);
}

/* Mobile */
@media (max-width: 600px) {
  .site-header {
    padding: 18px 20px;
  }

  .site-footer {
    padding: 24px 20px;
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }

  .launchpad {
    padding: 48px 20px;
  }

  .launchpad-inner {
    margin-left: 0;
  }

  .section-row {
    grid-template-columns: 32px 1fr 20px;
    gap: 16px;
    padding: 22px 0;
  }

  .section-row .subtitle {
    grid-column: 2 / 3;
    margin-top: 6px;
  }
}

/* ==========================================================================
   Section pages — shared layout
   ========================================================================== */

.page {
  flex: 1;
  padding: 80px 40px 120px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.page-header {
  margin-bottom: 80px;
  max-width: 900px;
}

.page-header .eyebrow {
  display: block;
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: 48px;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: var(--text-hover);
  line-height: 1.05;
  font-weight: normal;
}

.page-header .lede {
  margin-top: 24px;
  font-size: 15px;
  line-height: 1.65;
  max-width: 640px;
  color: var(--text);
}

.section-heading {
  font-family: var(--font-body);
  font-size: 19px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-hover);
  font-weight: normal;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* Projects — mission cards */
.mission-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
}

.mission-card {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  align-items: start;
}

.mission-list li:last-child .mission-card {
  border-bottom: 1px solid var(--border);
}

.mission-card .index {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  padding-top: 6px;
}

.mission-card h2 {
  font-family: var(--font-body);
  font-size: 24px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-hover);
  font-weight: normal;
  margin-bottom: 12px;
}

.mission-card h2 a {
  color: inherit;
}

.mission-card p {
  font-size: 14px;
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 16px;
}

.mission-card .stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.mission-card .link {
  align-self: start;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
  padding-top: 6px;
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.mission-card .link:hover {
  color: var(--text-hover);
  transform: translateX(4px);
}

/* Experience — timeline */
.timeline {
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 48px;
  padding: 36px 0;
  border-top: 1px solid var(--border);
}

.timeline li:last-child {
  border-bottom: 1px solid var(--border);
}

.timeline .when {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.timeline .role {
  font-family: var(--font-body);
  font-size: 18px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-hover);
  font-weight: normal;
  margin-bottom: 6px;
}

.timeline .company {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 16px;
}

.timeline p {
  font-size: 14px;
  line-height: 1.65;
  max-width: 640px;
}

/* Article — reading layout */
.article-layout {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 40px 120px;
  flex: 1;
  width: 100%;
}

.article-layout .meta {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.article-layout h1 {
  font-family: var(--font-display);
  font-size: 42px;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: var(--text-hover);
  line-height: 1.1;
  font-weight: normal;
  margin-bottom: 48px;
}

.article-layout h2 {
  font-family: var(--font-body);
  font-size: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-hover);
  font-weight: normal;
  margin: 56px 0 20px;
}

.article-layout p {
  font-size: 16px;
  line-height: 1.75;
  margin-bottom: 24px;
  color: var(--text);
}

.article-layout a {
  color: var(--text-hover);
}

.photo-subsection a {
  color: var(--text-hover);
}

/* Photography — editorial gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(48px, 8vw, 120px) clamp(16px, 2.6vw, 36px);
  align-items: end;
  width: min(calc(100vw - 40px), 1400px);
  margin-left: 50%;
  padding: 20px 0 120px;
  transform: translateX(-50%);
}

.gallery-item {
  grid-column: 2 / span 10;
  margin: 0;
  width: 100%;
}

.gallery-item:nth-child(8n + 1) {
  grid-column: 1 / -1;
}

.gallery-item:nth-child(8n + 2) {
  grid-column: 1 / span 7;
}

.gallery-item:nth-child(8n + 3) {
  grid-column: 8 / span 5;
  margin-top: clamp(56px, 8vw, 128px);
}

.gallery-item:nth-child(8n + 4) {
  grid-column: 3 / span 8;
}

.gallery-item:nth-child(8n + 5) {
  grid-column: 6 / span 7;
}

.gallery-item:nth-child(8n + 6) {
  grid-column: 1 / span 5;
  margin-top: clamp(40px, 7vw, 112px);
}

.gallery-item:nth-child(8n + 7) {
  grid-column: 2 / span 9;
}

.gallery-item:nth-child(8n) {
  grid-column: 4 / span 8;
}

.gallery-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: zoom-in;
}

.gallery-button:focus-visible {
  outline: 1px solid var(--text-hover);
  outline-offset: 10px;
}

.gallery img {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 88vh;
  object-fit: contain;
  opacity: 0.9;
  transition: opacity 0.3s var(--ease);
}

.gallery-button:hover img,
.gallery-button:focus-visible img {
  opacity: 1;
}

.gallery-empty {
  padding: 120px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.photo-subsection {
  margin-top: 80px;
  padding-top: 60px;
  border-top: 1px solid var(--border);
}

.photo-subsection p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 16px;
}

.reviews-stack {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.review {
  padding: 32px 0;
  border-top: 1px solid var(--border-subtle);
}

.review blockquote {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 12px;
}

.review cite {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  font-style: normal;
}

/* Booking block on photographer page */
.booking-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

.booking-grid .label {
  display: block;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.booking-grid .value {
  font-family: var(--font-body);
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--text-hover);
}

.booking-grid .value a {
  color: inherit;
}

@media (max-width: 600px) {
  .booking-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* Lightbox */
body.lightbox-active {
  overflow: hidden;
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 40px;
  cursor: zoom-out;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.lightbox.open {
  display: flex;
  opacity: 1;
}

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  cursor: default;
}

.lightbox-control {
  position: absolute;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.64);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.lightbox-control:hover,
.lightbox-control:focus-visible {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.lightbox-control:focus-visible {
  outline: 1px solid var(--text-hover);
  outline-offset: 6px;
}

.lightbox-close {
  top: 40px;
  right: 40px;
  font-size: 28px;
}

.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-prev {
  left: 40px;
}

.lightbox-next {
  right: 40px;
}

/* Picks */
.picks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 80px 48px;
}

.picks-column h2 {
  font-family: var(--font-body);
  font-size: 16px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-hover);
  font-weight: normal;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.picks-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.picks-column .pick-title {
  display: block;
  font-size: 13px;
  color: var(--text-hover);
  margin-bottom: 4px;
}

.picks-column .pick-meta {
  display: block;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Contact */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  max-width: 900px;
}

.contact-layout p {
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.contact-layout .label {
  display: block;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-layout .value {
  font-family: var(--font-body);
  font-size: 18px;
  letter-spacing: 1px;
  color: var(--text-hover);
  word-break: break-all;
}

.contact-layout .value a {
  color: inherit;
}

/* Parallax — GPU transform only, driven by JS via --parallax-y */
.parallax {
  will-change: transform;
  transform: translate3d(0, var(--parallax-y, 0px), 0);
  transition: transform 0.1s linear;
}

/* Reveal on scroll — GPU props only */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Page-load slide-in for page headers */
.slide-in {
  opacity: 0;
  transform: translateX(-24px);
  animation: slideIn 0.8s var(--ease) forwards;
}

@keyframes slideIn {
  to {
    opacity: 1;
    transform: none;
  }
}

/* Mobile — section pages */
@media (max-width: 600px) {
  .page {
    padding: 48px 20px 80px;
  }

  .page-header {
    margin-bottom: 48px;
  }

  .page-header h1 {
    font-size: 32px;
  }

  .mission-card {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 0;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 28px 0;
  }

  .article-layout {
    padding: 48px 20px 80px;
  }

  .article-layout h1 {
    font-size: 30px;
  }

  .article-layout p {
    font-size: 15px;
  }

  .picks-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .gallery {
    grid-template-columns: 1fr;
    gap: 48px;
    width: 100%;
    margin-left: 0;
    padding: 8px 0 80px;
    transform: none;
  }

  .gallery-item,
  .gallery-item:nth-child(8n + 1),
  .gallery-item:nth-child(8n + 2),
  .gallery-item:nth-child(8n + 3),
  .gallery-item:nth-child(8n + 4),
  .gallery-item:nth-child(8n + 5),
  .gallery-item:nth-child(8n + 6),
  .gallery-item:nth-child(8n + 7),
  .gallery-item:nth-child(8n) {
    grid-column: 1 / -1;
    margin-top: 0;
  }

  .gallery img {
    width: 100%;
    max-height: none;
  }

  .lightbox {
    padding: 20px;
  }

  .lightbox-close {
    top: 20px;
    right: 20px;
  }

  .lightbox-prev {
    left: 20px;
  }

  .lightbox-next {
    right: 20px;
  }
}

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

  .section-row:hover .title {
    transform: none;
  }

  .section-row .arrow {
    transform: none;
  }

  .site-header .logo::after,
  .site-nav a::after,
  .site-footer .links a::after,
  .section-row .title::after,
  .mission-card h2 a::after,
  .mission-card .link::after,
  .article-layout a::after,
  .photo-subsection a::after,
  .booking-grid .value a::after,
  .picks-column a .pick-title::after,
  .contact-layout .value a::after {
    transition: opacity 0.01ms !important;
    transform: scaleX(1) rotate(0deg);
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .slide-in {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .parallax {
    transform: none !important;
  }
}