@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@300;400;500;600&family=Noto+Serif+JP:wght@400;700&display=swap');

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

:root {
  --color-bg: #0a0a0a;
  --color-fg: #e8e4df;
  --color-accent: #6b8f9e;
  --color-muted: #5a5550;
  --color-highlight: #c9b99a;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-muted) var(--color-bg);
}

body {
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  cursor: default;
}

/* ============ PRELOADER ============ */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 6vw, 5rem);
  letter-spacing: 0.3em;
  color: var(--color-fg);
  opacity: 0;
  animation: fadeUp 1s ease forwards;
}

.preloader-sub {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(0.8rem, 2vw, 1.2rem);
  color: var(--color-muted);
  margin-top: 0.5rem;
  opacity: 0;
  animation: fadeUp 1s ease 0.3s forwards;
  letter-spacing: 0.15em;
}

.preloader-line {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin-top: 2rem;
  transform: scaleX(0);
  animation: scaleLine 1.5s ease 0.6s forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 3rem;
  mix-blend-mode: difference;
  transition: transform 0.4s ease;
}

.navbar.nav-hidden {
  transform: translateY(-100%);
}

.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.25em;
  color: var(--color-fg);
  text-decoration: none;
  transition: opacity 0.3s;
}

.nav-logo:hover {
  opacity: 0.7;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  color: var(--color-fg);
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  transition: opacity 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  opacity: 0.8;
}

/* ============ HAMBURGER ============ */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 200;
}

.hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--color-fg);
  transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============ MOBILE NAV ============ */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.97);
  z-index: 150;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.5rem;
  letter-spacing: 0.15em;
  color: var(--color-fg);
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease, opacity 0.3s;
}

.mobile-nav.open a {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav.open a:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav.open a:nth-child(2) { transition-delay: 0.2s; }
.mobile-nav.open a:nth-child(3) { transition-delay: 0.3s; }
.mobile-nav.open a:nth-child(4) { transition-delay: 0.4s; }

.mobile-nav a:hover {
  color: var(--color-accent);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../images/heromountain.jpg') center center / cover no-repeat;
  filter: brightness(0.3) saturate(0.6);
  transform: scale(1.1);
  transition: transform 8s ease;
}

.hero.in-view .hero-bg {
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.4) 0%,
    rgba(10, 10, 10, 0.2) 40%,
    rgba(10, 10, 10, 0.8) 100%
  );
}

.hero-content {
  position: relative;
  text-align: center;
  z-index: 2;
}

.hero-label {
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease 0.3s;
}

.hero.in-view .hero-label {
  opacity: 1;
  transform: translateY(0);
}

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 12vw, 12rem);
  line-height: 0.9;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  opacity: 0;
  transform: translateY(40px);
  transition: all 1s ease 0.5s;
}

.hero.in-view .hero-title {
  opacity: 1;
  transform: translateY(0);
}

.hero-title span {
  display: block;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: 0.3em;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

.hero-subtitle {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--color-muted);
  margin-top: 2rem;
  font-weight: 300;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease 0.8s;
}

.hero.in-view .hero-subtitle {
  opacity: 1;
  transform: translateY(0);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1s ease 2s forwards;
}

.scroll-indicator span {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: var(--color-muted);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollDown 2s ease infinite;
}

@keyframes scrollDown {
  0% { top: -100%; }
  100% { top: 100%; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============ QUOTE SECTION ============ */
.quote-section {
  padding: 20rem 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 60vh;
}

.quote-content {
  max-width: 800px;
  text-align: center;
}

.quote-jp {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--color-muted);
  margin-bottom: 2rem;
  letter-spacing: 0.2em;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.quote-content.in-view .quote-jp {
  opacity: 1;
  transform: translateY(0);
}

.quote-text {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-fg);
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease 0.2s;
}

.quote-content.in-view .quote-text {
  opacity: 1;
  transform: translateY(0);
}

.quote-text em {
  color: var(--color-accent);
  font-style: italic;
}

.quote-attribution {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease 0.4s;
}

.quote-content.in-view .quote-attribution {
  opacity: 1;
  transform: translateY(0);
}

/* ============ SECTION CARDS ============ */
.section-card {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.section-card:nth-child(odd) {
  flex-direction: row;
}

.section-card:nth-child(even) {
  flex-direction: row-reverse;
}

.card-image-wrapper {
  position: relative;
  width: 55%;
  height: 100vh;
  overflow: hidden;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5) saturate(0.7);
  transform: scale(1.15);
  transition: transform 1.2s ease;
}

.section-card.in-view .card-image {
  transform: scale(1);
}

.card-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(10, 10, 10, 0) 0%,
    rgba(10, 10, 10, 0.95) 100%
  );
}

.section-card:nth-child(even) .card-image-overlay {
  background: linear-gradient(
    to left,
    rgba(10, 10, 10, 0) 0%,
    rgba(10, 10, 10, 0.95) 100%
  );
}

.card-content {
  width: 45%;
  padding: 4rem 5rem;
  position: relative;
  z-index: 2;
}

.card-number {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 6rem;
  color: rgba(107, 143, 158, 0.1);
  line-height: 1;
  margin-bottom: -1rem;
  opacity: 0;
  transform: translateX(-30px);
  transition: all 0.8s ease;
}

.section-card.in-view .card-number {
  opacity: 1;
  transform: translateX(0);
}

.card-label {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.1s;
}

.section-card.in-view .card-label {
  opacity: 1;
  transform: translateY(0);
}

.card-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.2s;
}

.section-card.in-view .card-title {
  opacity: 1;
  transform: translateY(0);
}

.card-description {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-muted);
  font-weight: 300;
  margin-bottom: 2rem;
  max-width: 400px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.3s;
}

.section-card.in-view .card-description {
  opacity: 1;
  transform: translateY(0);
}

.card-stats {
  display: flex;
  gap: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.4s;
}

.section-card.in-view .card-stats {
  opacity: 1;
  transform: translateY(0);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.3rem;
}

.stat-value {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  color: var(--color-fg);
  letter-spacing: 0.05em;
}

/* ============ CHARACTER PROFILE ============ */
.profile-section {
  padding: 8rem 3rem;
  position: relative;
  overflow: hidden;
}

.profile-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-muted), transparent);
}

.profile-header {
  text-align: center;
  margin-bottom: 5rem;
}

.profile-label {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.profile-header.in-view .profile-label {
  opacity: 1;
  transform: translateY(0);
}

.profile-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.15s;
}

.profile-header.in-view .profile-title {
  opacity: 1;
  transform: translateY(0);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(90, 85, 80, 0.2);
}

.profile-item {
  background: var(--color-bg);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.profile-item.in-view {
  opacity: 1;
  transform: translateY(0);
}

.profile-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.6s ease;
}

.profile-item:hover::before {
  width: 100%;
}

.profile-item-label {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.profile-item-value {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  margin-bottom: 0.5rem;
}

.profile-item-desc {
  font-size: 0.8rem;
  color: var(--color-muted);
  line-height: 1.5;
  font-weight: 300;
}

/* ============ TIMELINE ============ */
.timeline-section {
  padding: 8rem 3rem;
  position: relative;
}

.timeline-header {
  text-align: center;
  margin-bottom: 5rem;
}

.timeline-label {
  font-size: 0.65rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.timeline-header.in-view .timeline-label {
  opacity: 1;
  transform: translateY(0);
}

.timeline-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease 0.15s;
}

.timeline-header.in-view .timeline-title {
  opacity: 1;
  transform: translateY(0);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 1px;
  background: rgba(90, 85, 80, 0.3);
}

.timeline-item {
  padding-left: 3rem;
  padding-bottom: 4rem;
  position: relative;
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.6s ease;
}

.timeline-item.in-view {
  opacity: 1;
  transform: translateX(0);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  transition: background 0.3s;
}

.timeline-item:hover::before {
  background: var(--color-accent);
}

.timeline-item-phase {
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.timeline-item-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.05em;
  color: var(--color-fg);
  margin-bottom: 0.75rem;
}

.timeline-item-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-muted);
  font-weight: 300;
}

/* ============ FULLWIDTH IMAGE ============ */
.fullwidth-image {
  position: relative;
  height: 60vh;
  overflow: hidden;
}

.fullwidth-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35) saturate(0.5);
  transform: scale(1.1);
  transition: transform 1.5s ease;
}

.fullwidth-image.in-view img {
  transform: scale(1);
}

.fullwidth-image-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 10, 0.3);
}

.fullwidth-image-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 8vw, 8rem);
  letter-spacing: 0.15em;
  color: var(--color-fg);
  text-align: center;
  opacity: 0;
  transform: scale(0.9);
  transition: all 1s ease 0.3s;
}

.fullwidth-image.in-view .fullwidth-image-text {
  opacity: 0.9;
  transform: scale(1);
}

/* ============ FOOTER ============ */
.footer {
  padding: 4rem 3rem;
  border-top: 1px solid rgba(90, 85, 80, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  letter-spacing: 0.25em;
  color: var(--color-fg);
}

.footer-sub {
  font-size: 0.7rem;
  color: var(--color-muted);
  letter-spacing: 0.1em;
}

.footer-right {
  font-size: 0.7rem;
  color: var(--color-muted);
  letter-spacing: 0.1em;
}

.footer-right a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.3s;
}

.footer-right a:hover {
  opacity: 0.7;
}

/* ============ SIDEBAR NAV ============ */
.sidebar-nav {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.sidebar-nav.visible {
  opacity: 1;
}

.sidebar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--color-muted);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.sidebar-dot:hover,
.sidebar-dot.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.3);
}

.sidebar-dot-label {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.sidebar-dot:hover .sidebar-dot-label {
  opacity: 1;
}

/* ============ CUSTOM CURSOR ============ */
.cursor {
  width: 20px;
  height: 20px;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.15s ease, opacity 0.3s;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}

.cursor-dot {
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .section-card,
  .section-card:nth-child(odd),
  .section-card:nth-child(even) {
    flex-direction: column;
  }

  .card-image-wrapper {
    width: 100%;
    height: 50vh;
  }

  .card-image-overlay {
    background: linear-gradient(
      to bottom,
      rgba(10, 10, 10, 0) 0%,
      rgba(10, 10, 10, 0.95) 100%
    ) !important;
  }

  .card-content {
    width: 100%;
    padding: 3rem 2rem;
  }

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

  .sidebar-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1.2rem 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: clamp(3rem, 15vw, 6rem);
  }

  .quote-section {
    padding: 6rem 2rem;
  }

  .card-content {
    padding: 2rem 1.5rem;
  }

  .card-number {
    font-size: 4rem;
  }

  .card-stats {
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .profile-section {
    padding: 5rem 1.5rem;
  }

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

  .timeline-section {
    padding: 5rem 1.5rem;
  }

  .footer {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
    padding: 3rem 1.5rem;
  }

  .cursor,
  .cursor-dot {
    display: none;
  }
}