/* ============================================================
   STRATAREEL — Cinematic Digital Journal
   main.css
   ============================================================ */

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

:root {
  --bg:         #0A0A0A;
  --bg-card:    #111111;
  --bg-hover:   #161616;
  --accent:     #C8A96E;   /* warm gold — filmic */
  --accent-dim: #8A6F3E;
  --text-primary:   #F0EDE8;
  --text-secondary: #888580;
  --text-muted:     #444240;
  --border:     #1E1E1E;
  --border-mid: #2A2A2A;

  --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --nav-h: 64px;
  --max-w: 1280px;
  --gap:   clamp(16px, 2.5vw, 32px);

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* --- Scrollbar -------------------------------------------- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* --- Typography -------------------------------------------- */
.t-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.t-title-xl {
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.08;
}
.t-title-lg {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.t-body { font-size: 15px; line-height: 1.75; color: var(--text-secondary); }
.t-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

/* --- Navigation ------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gap);
  border-bottom: 1px solid transparent;
  transition: background 0.4s var(--ease-in-out),
              border-color 0.4s var(--ease-in-out);
}
.nav.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: var(--border);
}
.nav__logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.nav__logo-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-primary);
}
.nav__logo-sub {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav__links a {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease-out-expo);
}
.nav__links a:hover { color: var(--text-primary); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links a.active { color: var(--text-primary); }
.nav__links a.active::after { transform: scaleX(1); }

.nav__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__menu-btn span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.3s var(--ease-out-expo), opacity 0.3s;
}

/* Mobile nav */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.nav__mobile a:hover { color: var(--text-primary); }

/* --- Hero -------------------------------------------------- */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  padding: 0 var(--gap) clamp(40px, 6vh, 80px);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10,10,10,0.2) 0%,
    rgba(10,10,10,0.0) 40%,
    rgba(10,10,10,0.7) 80%,
    rgba(10,10,10,1)   100%
  );
  z-index: 1;
}
.hero__video-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero__video-wrap video,
.hero__video-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.8);
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.hero__eyebrow-line {
  width: 32px; height: 1px;
  background: var(--accent);
}
.hero__title {
  margin-bottom: 20px;
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.hero__title em {
  font-style: normal;
  color: var(--accent);
}
.hero__desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: background 0.3s, color 0.3s;
}
.hero__cta:hover { background: var(--accent); color: var(--bg); }
.hero__cta svg { transition: transform 0.3s var(--ease-out-expo); }
.hero__cta:hover svg { transform: translateX(4px); }

.hero__scroll {
  position: absolute;
  bottom: 32px; right: var(--gap);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(var(--accent), transparent);
  animation: scroll-line 1.8s ease-in-out infinite;
}
@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  50.01% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- Section Base ------------------------------------------ */
.section {
  padding: clamp(64px, 8vw, 120px) var(--gap);
  max-width: var(--max-w);
  margin: 0 auto;
}
.section--full { max-width: none; }

.section__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(32px, 5vw, 56px);
  gap: 24px;
}
.section__title {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 300;
  letter-spacing: -0.01em;
}
.section__link {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: gap 0.3s;
}
.section__link:hover { gap: 14px; }

/* --- Filter Tags ------------------------------------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--border-mid);
  background: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.filter-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text-primary);
}
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200,169,110,0.06);
}

/* --- Story Feed Grid -------------------------------------- */
.feed {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap);
}

.story-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.3s, transform 0.4s var(--ease-out-expo);
}
.story-card:hover {
  border-color: var(--border-mid);
  transform: translateY(-4px);
}

/* Grid spans */
.story-card--wide  { grid-column: span 8; }
.story-card--half  { grid-column: span 4; }
.story-card--third { grid-column: span 4; }
.story-card--full  { grid-column: span 12; }

/* Aspect ratios */
.story-card__media {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.story-card--wide  .story-card__media { aspect-ratio: 21/9; }
.story-card--half  .story-card__media { aspect-ratio: 4/5; }
.story-card--third .story-card__media { aspect-ratio: 16/10; }
.story-card--full  .story-card__media { aspect-ratio: 21/6; }

.story-card__media img,
.story-card__media video {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo), filter 0.4s;
  filter: brightness(0.8) saturate(0.85);
}
.story-card:hover .story-card__media img,
.story-card:hover .story-card__media video {
  transform: scale(1.04);
  filter: brightness(0.95) saturate(1);
}

.story-card__video { display: none; }
.story-card:hover  .story-card__video { display: block; }
.story-card:hover  .story-card__thumb  { display: none; }

.story-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    0deg,
    rgba(10,10,10,0.9) 0%,
    rgba(10,10,10,0.2) 50%,
    transparent 100%
  );
  transition: opacity 0.4s;
}

.story-card__body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: clamp(16px, 2.5vw, 28px);
}
.story-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}
.story-card__tag {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(200,169,110,0.1);
  border: 1px solid rgba(200,169,110,0.2);
  padding: 3px 8px;
  border-radius: 2px;
}
.story-card__title {
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.story-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 11px;
}
.story-card__meta-sep { color: var(--text-muted); }

.story-card__read-more {
  position: absolute;
  top: 20px; right: 20px;
  width: 36px; height: 36px;
  border: 1px solid rgba(240,237,232,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s, transform 0.3s var(--ease-out-expo);
}
.story-card:hover .story-card__read-more {
  opacity: 1;
  transform: scale(1);
}

/* --- Showreel Section -------------------------------------- */
.showreel {
  position: relative;
  background: var(--bg);
  padding: clamp(64px, 8vw, 120px) 0;
  overflow: hidden;
}
.showreel__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
}
.showreel__video-wrap {
  position: relative;
  aspect-ratio: 21/9;
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  cursor: pointer;
}
.showreel__video-wrap video,
.showreel__video-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.6);
  transition: filter 0.4s;
}
.showreel__video-wrap:hover video,
.showreel__video-wrap:hover img { filter: brightness(0.8); }
.showreel__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  z-index: 2;
}
.showreel__play-btn {
  width: 72px; height: 72px;
  border: 1px solid rgba(240,237,232,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s, border-color 0.3s, transform 0.4s var(--ease-out-expo);
}
.showreel__video-wrap:hover .showreel__play-btn {
  background: rgba(200,169,110,0.1);
  border-color: var(--accent);
  transform: scale(1.08);
}
.showreel__label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* --- Equipment Strip -------------------------------------- */
.equipment { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.equipment__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
}
.equipment__item {
  padding: clamp(24px, 3vw, 40px) var(--gap);
  border-right: 1px solid var(--border);
  transition: background 0.3s;
}
.equipment__item:last-child { border-right: none; }
.equipment__item:hover { background: var(--bg-hover); }
.equipment__icon {
  width: 32px; height: 32px;
  margin-bottom: 16px;
  color: var(--accent);
}
.equipment__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.equipment__spec {
  font-size: 11px;
  color: var(--text-secondary);
}

/* --- Contact ---------------------------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: start;
}
.contact__tagline {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.contact__tagline em { font-style: normal; color: var(--accent); }
.contact__form { display: flex; flex-direction: column; gap: 16px; }
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-field label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.form-field input,
.form-field textarea,
.form-field select {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 12px 16px;
  outline: none;
  border-radius: 2px;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus { border-color: var(--accent); }
.form-field textarea { min-height: 120px; }
.btn-submit {
  padding: 15px 32px;
  background: var(--accent);
  color: var(--bg);
  border: none;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  align-self: flex-start;
  transition: background 0.3s, transform 0.2s;
}
.btn-submit:hover { background: var(--text-primary); transform: translateY(-1px); }

/* --- Footer ----------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: clamp(32px, 4vw, 48px) var(--gap);
}
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer__copy {
  font-size: 12px;
  color: var(--text-muted);
}
.footer__links {
  display: flex;
  gap: 24px;
}
.footer__links a {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--text-primary); }

/* --- Reveal Animations ------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out-expo),
              transform 0.7s var(--ease-out-expo);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* --- Divider ---------------------------------------------- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 1024px) {
  .story-card--wide  { grid-column: span 12; }
  .story-card--half  { grid-column: span 6; }
  .story-card--third { grid-column: span 6; }
  .story-card--full  { grid-column: span 12; }
  .contact__grid { grid-template-columns: 1fr; }
  .showreel__video-wrap { aspect-ratio: 16/9; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__menu-btn { display: flex; }

  .story-card--wide,
  .story-card--half,
  .story-card--third,
  .story-card--full  { grid-column: span 12; }

  .story-card--wide  .story-card__media { aspect-ratio: 16/9; }
  .story-card--half  .story-card__media { aspect-ratio: 4/3; }
  .story-card--third .story-card__media { aspect-ratio: 16/9; }
  .story-card--full  .story-card__media { aspect-ratio: 16/9; }

  .equipment__grid { grid-template-columns: 1fr 1fr; }
  .equipment__item { border-right: none; border-bottom: 1px solid var(--border); }
}

@media (max-width: 480px) {
  .equipment__grid { grid-template-columns: 1fr; }
  .hero__cta { width: 100%; justify-content: center; }
}