/* ─────────────────────────────────────────────────────────────
   Lang's Eye View — Drone Photography Portfolio
   Cinematic dark theme with amber/gold accents
   ──────────────────────────────────────────────────────────── */

/* ── Custom Properties ────────────────────────────────────── */
:root {
  --bg:          #080808;
  --bg-alt:      #0f0f0f;
  --surface:     #161616;
  --card:        #1c1c1c;
  --card-hover:  #242424;
  --border:      #2a2a2a;

  --accent:      #f59e0b;
  --accent-dim:  #d97706;
  --accent-glow: rgba(245, 158, 11, 0.15);

  --text:        #f0f0f0;
  --text-muted:  #a0a0a0;
  --text-faint:  #4a4a4a;

  --radius:      0.75rem;
  --radius-sm:   0.375rem;
  --transition:  0.22s ease;

  --font-sans: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Container ────────────────────────────────────────────── */
.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
}

/* ── Section shared ───────────────────────────────────────── */
.section {
  padding-block: 6rem;
}

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

.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section__heading {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3rem;
  line-height: 1.2;
}

/* ── Navigation ───────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
  letter-spacing: 0.01em;
  transition: opacity var(--transition);
}

.nav__brand:hover { opacity: 0.8; }

.nav__brand-icon { font-size: 1.2rem; }

.nav__links {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { width: 100%; }

.nav__back {
  color: var(--text-faint);
  font-size: 0.8rem;
}

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

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: #080808;
}

.btn--primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn--outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 60% 50%, rgba(245, 158, 11, 0.06) 0%, transparent 65%),
    linear-gradient(160deg, #0f0b02 0%, #080808 40%, #050a14 100%);
}

/* Horizon line effect */
.hero__bg::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 38%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(245,158,11,0.2) 30%, rgba(245,158,11,0.4) 50%, rgba(245,158,11,0.2) 70%, transparent 100%);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 50%,
    rgba(8,8,8,0.8) 100%
  );
  pointer-events: none;
}

.hero__content {
  position: relative;
  padding-block: 8rem 6rem;
  max-width: 680px;
}

.hero__eyebrow {
  margin-bottom: 1.25rem;
}

.hero__cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 99px;
  padding: 0.3rem 0.9rem;
}

.hero__name {
  font-size: clamp(2.75rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

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

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-hint span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  margin-inline: auto;
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ── Social Strip ─────────────────────────────────────────── */
.social-strip {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding-block: 0.875rem;
}

.social-strip__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.social-strip__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  flex-shrink: 0;
}

.social-strip__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

.social-strip__link:hover { color: var(--accent); }

.social-strip__icon { font-size: 1rem; }

.social-strip__divider {
  color: var(--text-faint);
  font-size: 1rem;
}

/* ── Gallery ──────────────────────────────────────────────── */
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 260px;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.gallery__item {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
  transition: border-color var(--transition), transform var(--transition);
}

.gallery__item:hover {
  border-color: var(--accent);
  transform: scale(1.01);
  z-index: 1;
}

.gallery__item--wide {
  grid-column: span 2;
}

.gallery__item--tall {
  grid-row: span 2;
}

/* Actual images — applied once you replace placeholders */
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  display: block;
}

.gallery__item:hover img {
  transform: scale(1.04);
}

.gallery__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem 0.75rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  font-size: 0.8rem;
  color: rgba(255,255,255,0.85);
}

/* Placeholder styling — remove once photos are added */
.gallery__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--text-faint);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  background: repeating-linear-gradient(
    45deg,
    var(--card),
    var(--card) 8px,
    var(--card-hover) 8px,
    var(--card-hover) 16px
  );
  border-radius: var(--radius-sm);
  text-align: center;
  padding: 1rem;
}

.gallery__placeholder-icon {
  font-size: 1.75rem;
  opacity: 0.4;
}

.gallery__more-note {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.gallery__more-note a {
  color: var(--accent);
  transition: opacity var(--transition);
}

.gallery__more-note a:hover { opacity: 0.75; }

/* ── YouTube section ──────────────────────────────────────── */
.yt__inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 4rem;
  align-items: center;
}

.yt__body {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.yt__inner .section__heading { margin-bottom: 1rem; }

.yt__card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.yt__card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.yt__card-thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1a1200 0%, #2d1f00 50%, #0a0a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.yt__card-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(245,158,11,0.1) 0%, transparent 70%);
}

.yt__play-icon {
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.8;
  position: relative;
}

.yt__card-meta {
  padding: 1rem 1.25rem;
}

.yt__card-channel {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.yt__card-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── About / Cert ─────────────────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 4rem;
  align-items: start;
}

.about__text p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.0125rem;
}

.about__text .section__heading { margin-bottom: 1.5rem; }

.cert-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color var(--transition);
}

.cert-card:hover { border-color: var(--accent); }

.cert-card__icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  line-height: 1;
}

.cert-card__title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.cert-card__sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.cert-card__body {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.cert-card__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.cert-card__list li {
  color: var(--text);
}

/* ── Social cards ─────────────────────────────────────────── */
.social__inner {
  text-align: center;
}

.social__inner .section__heading { margin-bottom: 1rem; }

.social__body {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: 3rem;
}

.social__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 700px;
  margin-inline: auto;
}

.social-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
  transition: all var(--transition);
}

.social-card:hover {
  border-color: var(--accent);
  background: var(--card-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(245,158,11,0.08);
}

.social-card__icon {
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.social-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.social-card__handle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.social-card__desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.social-card__cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 0.75rem;
  transition: letter-spacing var(--transition);
}

.social-card:hover .social-card__cta {
  letter-spacing: 0.03em;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding-block: 2rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer p {
  font-size: 0.8125rem;
  color: var(--text-faint);
}

.footer__back {
  font-size: 0.8rem;
  color: var(--text-faint);
  transition: color var(--transition);
  font-family: var(--font-mono);
}

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

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1000px) {
  .yt__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .yt__card {
    max-width: 480px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .gallery__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 200px;
  }

  .gallery__item--wide {
    grid-column: span 2;
  }

  .social__cards {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
}

@media (max-width: 560px) {
  .nav__links {
    gap: 1rem;
    font-size: 0.8rem;
  }

  .nav__back { display: none; }

  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
    justify-content: center;
  }

  .gallery__grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }

  .gallery__item--wide,
  .gallery__item--tall {
    grid-column: span 1;
    grid-row: span 1;
  }

  .social-strip__inner {
    gap: 0.75rem;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Focus-visible accessibility ──────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}