/*
Theme Name: AW Theme
Theme URI: https://avotw.com
Author: 株式会社AW
Author URI: https://avotw.com
Description: A View of the World — Brand Experience Design
Version: 1.0.0
License: Proprietary
Text Domain: aw-theme
*/

/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --black:      #0A0A0A;
  --surface:    #111111;
  --card:       #161616;
  --border:     #282828;
  --ivory:      #F5F0E8;
  --ivory-dim:  #A09080;
  --gold:       #C8B89A;
  --gold-faint: rgba(200,184,154,0.12);
  --white:      #FFFFFF;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

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

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--black);
  color: var(--ivory);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
.t-display {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  line-height: 0.95;
  letter-spacing: -0.02em;
}
.t-display--xl { font-size: clamp(4rem, 10vw, 11rem); }
.t-display--lg { font-size: clamp(2.8rem, 6vw, 6rem); }
.t-display--md { font-size: clamp(2rem, 4vw, 3.5rem); }

.t-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ivory-dim);
}
.t-body {
  font-family: var(--font-body);
  font-size: clamp(0.9375rem, 1.5vw, 1.0625rem);
  line-height: 1.75;
  font-weight: 300;
  color: var(--ivory-dim);
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 5rem);
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem clamp(1.5rem, 5vw, 5rem);
  mix-blend-mode: difference;
}

.site-logo {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--ivory);
}

.site-nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ivory);
  opacity: 0.6;
  transition: opacity 0.25s;
}
.site-nav a:hover { opacity: 1; }

.nav-cta {
  opacity: 1 !important;
  border: 1px solid rgba(245,240,232,0.35);
  padding: 0.55rem 1.25rem;
  border-radius: 0;
  transition: background 0.25s, color 0.25s !important;
}
.nav-cta:hover {
  background: var(--ivory) !important;
  color: var(--black) !important;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 clamp(1.5rem, 5vw, 5rem);
  padding-bottom: 6rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(200,184,154,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 0.2s forwards;
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--gold);
}

.hero__headline {
  overflow: hidden;
}
.hero__headline-line {
  display: block;
  opacity: 0;
  transform: translateY(100%);
}
.hero__headline-line:nth-child(1) { animation: slideUp 1s var(--ease-out) 0.4s forwards; }
.hero__headline-line:nth-child(2) { animation: slideUp 1s var(--ease-out) 0.55s forwards; }
.hero__headline-line:nth-child(3) { animation: slideUp 1s var(--ease-out) 0.7s forwards; }

.hero__sub {
  margin-top: 3.5rem;
  max-width: 36ch;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s var(--ease-out) 1.1s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  right: clamp(1.5rem, 5vw, 5rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.5s forwards;
}
.hero__scroll-line {
  width: 1px;
  height: 4rem;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollLine 2s ease-in-out 2s infinite;
}

/* ============================================================
   MARQUEE BAND
   ============================================================ */
.marquee-band {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  overflow: hidden;
  white-space: nowrap;
}
.marquee-inner {
  display: inline-flex;
  gap: 4rem;
  animation: marquee 30s linear infinite;
}
.marquee-inner span {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ivory-dim);
}
.marquee-inner .sep {
  color: var(--gold);
  letter-spacing: 0;
}

/* ============================================================
   SECTION INTRO (reusable)
   ============================================================ */
.section-intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 4rem;
  margin-bottom: 5rem;
}
.section-intro__left { max-width: 50%; }
.section-intro__right { max-width: 36ch; padding-top: 1rem; }

/* ============================================================
   WHAT WE DO
   ============================================================ */
.what-we-do {
  padding: 10rem 0;
  border-top: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}
.service-item {
  background: var(--black);
  padding: 3rem 2.5rem;
  position: relative;
  overflow: hidden;
  transition: background 0.4s var(--ease-out);
}
.service-item::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out);
}
.service-item:hover { background: var(--card); }
.service-item:hover::after { transform: scaleX(1); }

.service-item__num {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 2rem;
}
.service-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--ivory);
}
.service-item__desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ivory-dim);
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
.philosophy {
  padding: 10rem 0;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.philosophy__bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 20vw;
  font-style: italic;
  color: rgba(200,184,154,0.03);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.philosophy__quote {
  max-width: 860px;
  position: relative;
}
.philosophy__quote p {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.3;
  color: var(--ivory);
}
.philosophy__quote-mark {
  font-size: 6rem;
  line-height: 0;
  color: var(--gold);
  margin-bottom: 2rem;
  display: block;
  font-family: var(--font-display);
}
.philosophy__author {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.philosophy__author-line {
  width: 3rem;
  height: 1px;
  background: var(--gold);
}

/* ============================================================
   WORK / CASE STUDIES
   ============================================================ */
.work {
  padding: 10rem 0;
  border-top: 1px solid var(--border);
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}
.work-item {
  position: relative;
  overflow: hidden;
  background: var(--card);
  aspect-ratio: 4/3;
  cursor: pointer;
}
.work-item--tall { aspect-ratio: 3/4; }

.work-item__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out), filter 0.8s var(--ease-out);
  filter: brightness(0.65) saturate(0.4);
}
.work-item:hover .work-item__media {
  transform: scale(1.04);
  filter: brightness(0.5) saturate(0.3);
}

.work-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
}
.work-item__client {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}
.work-item__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 300;
  font-style: italic;
  color: var(--ivory);
  line-height: 1.15;
}
.work-item__arrow {
  margin-top: 1rem;
  width: 2rem;
  height: 1px;
  background: var(--ivory);
  position: relative;
  transition: width 0.3s var(--ease-out);
}
.work-item__arrow::after {
  content: '';
  position: absolute;
  right: 0; top: -3px;
  width: 6px; height: 6px;
  border-right: 1px solid var(--ivory);
  border-top: 1px solid var(--ivory);
  transform: rotate(45deg);
}
.work-item:hover .work-item__arrow { width: 3rem; }

/* ============================================================
   APPROACH / PROCESS
   ============================================================ */
.approach {
  padding: 10rem 0;
  border-top: 1px solid var(--border);
}
.approach-steps {
  margin-top: 5rem;
  counter-reset: step;
}
.approach-step {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background 0.3s;
}
.approach-step:first-child { border-top: 1px solid var(--border); }
.approach-step__num {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.approach-step__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 300;
  font-style: italic;
  color: var(--ivory);
}
.approach-step__desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ivory-dim);
}

/* ============================================================
   CTA / CONTACT STRIP
   ============================================================ */
.cta-strip {
  padding: 10rem 0;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.cta-strip__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(200,184,154,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.cta-strip__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 3rem;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  border: 1px solid var(--gold);
  padding: 1.25rem 3rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ivory);
  transition: background 0.3s, color 0.3s;
  cursor: pointer;
}
.cta-btn:hover { background: var(--gold); color: var(--black); }
.cta-btn__arrow {
  width: 1.5rem;
  height: 1px;
  background: currentColor;
  position: relative;
  transition: width 0.3s;
}
.cta-btn:hover .cta-btn__arrow { width: 2.5rem; }
.cta-btn__arrow::after {
  content: '';
  position: absolute;
  right: 0; top: -3px;
  width: 5px; height: 5px;
  border-right: 1px solid currentColor;
  border-top: 1px solid currentColor;
  transform: rotate(45deg);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 4rem clamp(1.5rem, 5vw, 5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}
.footer-nav {
  display: flex;
  gap: 2rem;
}
.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ivory-dim);
  transition: color 0.25s;
}
.footer-nav a:hover { color: var(--ivory); }
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.1em;
  color: var(--ivory-dim);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(0.4); transform-origin: top; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .approach-step { grid-template-columns: auto 1fr; }
  .approach-step__desc { display: none; }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .section-intro { flex-direction: column; gap: 2rem; }
  .section-intro__left,
  .section-intro__right { max-width: 100%; }
  .approach-step { grid-template-columns: 1fr; gap: 1rem; }
  .site-footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   HERO INTRO（1画面目 — AVOTWロゴのみ）
   ============================================================ */
.hero-intro {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-intro__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.hero-intro__logo {
  font-family: 'Outfit', var(--font-body), sans-serif;
  font-size: clamp(3.5rem, 12vw, 10rem);
  font-weight: 200;
  letter-spacing: 0.35em;
  color: var(--ivory);
  line-height: 1;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1.2s var(--ease-out) 0.3s forwards;
}

.hero-intro__sub {
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1s forwards;
  letter-spacing: 0.3em;
}

.hero-intro__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.8s forwards;
}

.hero-intro__scroll-line {
  width: 1px;
  height: 4rem;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollLine 2s ease-in-out 2.5s infinite;
}

/* ============================================================
   HERO VIDEO（2画面目 — 背景動画 + キャッチ）
   ============================================================ */
.hero-video {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 clamp(1.5rem, 5vw, 5rem);
  padding-bottom: 7rem;
  overflow: hidden;
}

.hero-video__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-video__bg iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 177.78vh; /* 16:9 */
  min-width: 100%;
  height: 100%;
  min-height: 56.25vw;
  transform: translate(-50%, -50%);
  border: none;
  pointer-events: none;
}

.hero-video__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10,10,10,0.95) 0%,
    rgba(10,10,10,0.5) 40%,
    rgba(10,10,10,0.3) 100%
  );
  z-index: 1;
}

.hero-video__content {
  position: relative;
  z-index: 2;
}

.hero-video__eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.hero-video__eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--gold);
}

.hero-video__headline {
  overflow: hidden;
}

.hero-video__sub {
  margin-top: 2.5rem;
  max-width: 36ch;
}

/* ============================================================
   LOGO サイズ（ヘッダー）
   ============================================================ */
.site-logo {
  font-family: 'Outfit', var(--font-body), sans-serif;
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ivory);
}