/* ============================================
   THE DOWNLINE — Film Animation Style
   Warm cream, teal, burnt orange, aged paper
   ============================================ */

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

:root {
  --cream: #f5f0e1;
  --cream-dark: #e8dcc8;
  --teal: #5fb8a8;
  --teal-dark: #4a9a8c;
  --orange: #c4522a;
  --orange-light: #d4633a;
  --brown: #8b6840;
  --brown-dark: #6b5d4f;
  --brown-text: #3d2e1f;
  --gold: #c9a96e;
  --grid-line: rgba(139, 104, 64, 0.08);
  --font-heading: 'Archivo Black', 'Impact', sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--brown-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--orange-light);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Grid Paper Background --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* --- Grain Overlay --- */
.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
  pointer-events: none;
  z-index: 1;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(245, 240, 225, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(139, 104, 64, 0.15);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--brown-text);
  letter-spacing: 0.08em;
}

.nav-logo:hover {
  color: var(--orange);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--brown-dark);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--orange);
}

.nav-cta {
  background: var(--orange) !important;
  color: white !important;
  padding: 8px 18px;
  border-radius: 4px;
}

.nav-cta:hover {
  background: var(--orange-light) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--brown-text);
  transition: all 0.3s;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 40px;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, #a8ddd4 0%, #c8e8e0 25%, #e8dcc0 60%, #dcc890 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

/* --- Parachutes --- */
.parachute {
  position: absolute;
  z-index: 2;
}

.parachute svg {
  width: 100%;
  height: 100%;
}

.parachute-1 {
  width: 100px;
  height: 150px;
  top: 8%;
  left: 12%;
  animation: float-down-1 18s ease-in-out infinite;
}

.parachute-2 {
  width: 70px;
  height: 105px;
  top: 15%;
  right: 18%;
  animation: float-down-2 22s ease-in-out infinite;
  animation-delay: -5s;
}

.parachute-3 {
  width: 55px;
  height: 82px;
  top: 25%;
  left: 55%;
  animation: float-down-3 25s ease-in-out infinite;
  animation-delay: -10s;
}

@keyframes float-down-1 {
  0% { transform: translate(0, -20px) rotate(-3deg); }
  25% { transform: translate(15px, 20px) rotate(2deg); }
  50% { transform: translate(-10px, 40px) rotate(-2deg); }
  75% { transform: translate(10px, 20px) rotate(3deg); }
  100% { transform: translate(0, -20px) rotate(-3deg); }
}

@keyframes float-down-2 {
  0% { transform: translate(0, 0) rotate(2deg); }
  33% { transform: translate(-20px, 30px) rotate(-3deg); }
  66% { transform: translate(15px, 15px) rotate(2deg); }
  100% { transform: translate(0, 0) rotate(2deg); }
}

@keyframes float-down-3 {
  0% { transform: translate(0, 10px) rotate(-1deg); }
  50% { transform: translate(-15px, -20px) rotate(3deg); }
  100% { transform: translate(0, 10px) rotate(-1deg); }
}

/* --- Clouds --- */
.cloud {
  position: absolute;
  z-index: 1;
}

.cloud svg {
  width: 100%;
  height: 100%;
}

.cloud-1 {
  width: 250px;
  top: 12%;
  left: -50px;
  animation: drift-cloud 40s linear infinite;
}

.cloud-2 {
  width: 180px;
  top: 35%;
  right: -30px;
  animation: drift-cloud-reverse 50s linear infinite;
}

@keyframes drift-cloud {
  0% { transform: translateX(-100px); }
  100% { transform: translateX(calc(100vw + 200px)); }
}

@keyframes drift-cloud-reverse {
  0% { transform: translateX(100px); }
  100% { transform: translateX(calc(-100vw - 200px)); }
}

/* --- Hero Content --- */
.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brown-dark);
  margin-bottom: 12px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 12vw, 8rem);
  line-height: 0.85;
  color: var(--brown-text);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  text-align: center;
  width: 100%;
}

.hero-subtitle {
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brown);
  margin-bottom: 8px;
  font-weight: 600;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--brown-dark);
  margin-bottom: 36px;
  font-weight: 300;
  font-style: italic;
}

.hero-video {
  margin-bottom: 28px;
  width: 100%;
  max-width: 800px;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 6px;
  border: 3px solid var(--brown);
  box-shadow: 0 12px 40px rgba(61, 46, 31, 0.25);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-icon {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--orange);
  color: white;
}

.btn-primary:hover {
  background: var(--orange-light);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(196, 82, 42, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--brown-text);
  border: 2px solid var(--brown);
}

.btn-secondary:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* --- Houses Divider --- */
.houses-divider {
  position: relative;
  z-index: 2;
  margin-top: -2px;
  line-height: 0;
  background: linear-gradient(180deg, #dcc890 0%, #d5c48a 40%, var(--cream-dark) 100%);
}

.houses-divider svg {
  width: 100%;
  height: clamp(120px, 15vw, 220px);
  display: block;
}

/* --- Sections --- */
.section {
  position: relative;
  z-index: 1;
  padding: 80px 0;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 16px;
  color: var(--brown-text);
}

.section-subtitle {
  color: var(--brown-dark);
  font-size: 1.1rem;
  font-weight: 300;
  margin-bottom: 40px;
}

/* --- About --- */
.about {
  background: var(--cream-dark);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
  align-items: start;
}

.about-text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--brown-text);
}

.about-text p {
  color: var(--brown-dark);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.75;
}

.about-text em {
  color: var(--brown-text);
  font-style: italic;
}

.about-text strong {
  color: var(--brown-text);
}

.about-meta {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.meta-card {
  background: var(--cream);
  border: 2px solid rgba(139, 104, 64, 0.15);
  border-radius: 6px;
  padding: 24px;
}

.imdb-card {
  text-align: center;
  padding: 28px 24px;
  background: white;
}

.imdb-rating {
  margin-bottom: 10px;
}

.imdb-star {
  color: #f5c518;
  font-size: 1.4rem;
  margin-right: 6px;
}

.imdb-score {
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--brown-text);
}

.imdb-max {
  font-size: 1.2rem;
  color: var(--brown);
}

.imdb-link {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.meta-item {
  display: flex;
  flex-direction: column;
  padding: 8px 0;
  border-bottom: 1px solid rgba(139, 104, 64, 0.1);
}

.meta-item:last-child {
  border-bottom: none;
}

.meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--brown);
  margin-bottom: 3px;
}

.meta-value {
  font-size: 0.95rem;
  color: var(--brown-text);
  font-weight: 600;
}

/* --- Subjects --- */
.subjects {
  background: var(--cream);
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.subject-card {
  background: white;
  border: 2px solid rgba(139, 104, 64, 0.12);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}

.subject-card:hover {
  border-color: var(--teal);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(61, 46, 31, 0.1);
}

.subject-icon {
  width: 80px;
  height: 110px;
  margin: 0 auto 16px;
}

.subject-icon svg {
  width: 100%;
  height: 100%;
}

.subject-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 4px;
  color: var(--brown-text);
}

.subject-role {
  color: var(--orange);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.subject-desc {
  color: var(--brown-dark);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* --- Airplane Divider --- */
.airplane-divider {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 0;
  overflow: hidden;
}

.airplane-svg {
  width: 120px;
  height: 48px;
  animation: fly-wobble 4s ease-in-out infinite;
}

@keyframes fly-wobble {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-6px) rotate(1deg); }
}

.airplane-trail {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--brown) 20%, var(--brown) 80%, transparent 100%);
  opacity: 0.15;
  z-index: -1;
}

/* --- Watch --- */
.watch {
  background: var(--cream-dark);
}

.watch-featured {
  margin-bottom: 36px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.watch-featured-label {
  text-align: center;
  margin-top: 14px;
  color: var(--brown-text);
  font-size: 0.95rem;
  font-weight: 600;
}

.parts-heading {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--brown-text);
  text-align: center;
  margin: 40px 0 20px;
}

.parts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.part-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: white;
  border: 2px dashed var(--brown);
  border-radius: 6px;
  padding: 28px 16px;
  text-align: center;
  transition: border-color 0.3s, background 0.3s;
  opacity: 0.7;
}

.part-card:hover {
  border-color: var(--teal);
  background: rgba(95, 184, 168, 0.05);
  opacity: 1;
}

.part-number {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--brown-text);
  margin-bottom: 6px;
}

.part-status {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--brown);
}

.part-card.part-available {
  opacity: 1;
  border-style: solid;
  border-color: var(--orange);
}

.part-card.part-available .part-status {
  background: var(--orange);
  color: white;
  padding: 4px 14px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.7rem;
}

.part-card.part-available:hover {
  background: var(--orange);
}

.part-card.part-available:hover .part-number,
.part-card.part-available:hover .part-status {
  color: white;
}

.watch-cta {
  text-align: center;
}

/* --- Footer --- */
.footer {
  background: var(--brown-text);
  color: var(--cream);
  padding: 40px 0 20px;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--cream);
}

.footer-year {
  font-size: 0.8rem;
  color: var(--gold);
}

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

.footer-links a {
  color: var(--cream-dark);
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--orange-light);
}

.footer-bottom {
  border-top: 1px solid rgba(245, 240, 225, 0.1);
  padding-top: 16px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--brown);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

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

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

  .parachute-1 { width: 70px; height: 105px; }
  .parachute-2 { width: 50px; height: 75px; }
  .parachute-3 { width: 40px; height: 60px; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(245, 240, 225, 0.98);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid rgba(139, 104, 64, 0.15);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 90px 20px 40px;
    min-height: auto;
  }

  .hero-title {
    font-size: clamp(2.5rem, 11vw, 4.5rem);
  }

  .section {
    padding: 50px 0;
  }

  .subject-card {
    padding: 24px;
  }

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

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .houses-divider {
    overflow: hidden;
  }

  .houses-divider svg {
    height: 120px;
    width: 200%;
    margin-left: -50%;
  }

  .parachute-3 {
    display: none;
  }
}