/* ===========================================
   Geoglyphs — styles.css
   Tone: ECM-inspired quiet luxury
   =========================================== */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* --- Custom cursor (PC only, opt-in via JS) --- */
.has-custom-cursor,
.has-custom-cursor body { cursor: none; }
.has-custom-cursor * { cursor: inherit; }
.has-custom-cursor input,
.has-custom-cursor textarea { cursor: text; }
.g-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  background: transparent;
  border: 2.5px solid #FAF6F3;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.95;
  mix-blend-mode: difference;
  transform: translate3d(-100px, -100px, 0) translate(-50%, -50%);
  transition: width 0.32s cubic-bezier(0.2, 0.8, 0.2, 1),
              height 0.32s cubic-bezier(0.2, 0.8, 0.2, 1),
              background 0.28s ease,
              border-width 0.28s ease,
              opacity 0.28s ease;
}
.g-cursor.is-hover {
  width: 44px;
  height: 44px;
  background: #FAF6F3;
  border-width: 0;
}
.g-cursor.is-out { opacity: 0; }
.g-grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 2px;
  height: 2px;
  background: var(--grain-color, #0D0D12);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0;
  transform: translate3d(-100px, -100px, 0) translate(-50%, -50%);
}
.g-grain.is-active {
  animation: g-grain-fade var(--grain-life, 1200ms) cubic-bezier(0.16, 0.7, 0.3, 1) forwards;
}
@keyframes g-grain-fade {
  0%   { opacity: 0; }
  12%  { opacity: var(--grain-opacity, 0.32); }
  100% { opacity: 0; }
}
body {
  margin: 0;
  background: #FAF6F3;
  color: #0D0D12;
  font-family: 'Inter', 'Helvetica Neue', 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: opacity 0.4s ease; }
a:hover { opacity: 0.55; }
ul { list-style: none; padding: 0; margin: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

/* --- Tokens --- */
:root {
  --base: #FAF6F3;
  --ink: #0D0D12;
  --mute: #7A7E84;
  --mute-2: #B0ADA6;
  --accent: #B8C2C8;
  --hairline: rgba(13, 13, 18, 0.12);
  --hairline-strong: rgba(13, 13, 18, 0.22);
  --hover-bg: rgba(13, 13, 18, 0.045);
  --max: 1280px;
  --gutter: clamp(24px, 5vw, 80px);
  --section-py: clamp(80px, 10vw, 140px);
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px var(--gutter);
  background: rgba(250, 246, 243, 0.85);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease;
}
.site-header.scrolled { border-bottom-color: var(--hairline); }
.brand {
  font-size: 20px;
  letter-spacing: 0.005em;
  font-weight: 400;
  color: var(--ink);
}
.nav-list {
  display: flex;
  gap: clamp(14px, 2.2vw, 32px);
}
.nav-list a {
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 400;
}
.nav-toggle { display: none; }

/* --- Hero / Index --- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--gutter);
  position: relative;
  overflow: hidden;
}
/* Hero Triangulation pattern */
.hero-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at center, rgba(0,0,0,1) 35%, rgba(0,0,0,0) 90%);
          mask-image: radial-gradient(ellipse 70% 60% at center, rgba(0,0,0,1) 35%, rgba(0,0,0,0) 90%);
}
.hero-pattern-svg {
  width: 100%;
  height: 100%;
  display: block;
}
.hero-line {
  fill: none;
  stroke: #0D0D12;
  stroke-width: 1;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  opacity: 0.085;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
}
.line-a { animation: hero-line-draw 1.4s cubic-bezier(0.65, 0, 0.35, 1) 0.4s forwards; }
.line-b { animation: hero-line-draw 1.4s cubic-bezier(0.65, 0, 0.35, 1) 0.85s forwards; }
.line-c { animation: hero-line-draw 1.2s cubic-bezier(0.65, 0, 0.35, 1) 1.3s forwards; }
@keyframes hero-line-draw {
  to { stroke-dashoffset: 0; }
}
.hero-marker {
  opacity: 0;
  fill: #0D0D12;
  vector-effect: non-scaling-stroke;
  animation: hero-marker-in 0.8s ease 2.5s forwards,
             hero-marker-pulse 9s ease-in-out 3.5s infinite;
}
.marker-2 {
  fill: none;
  stroke: #0D0D12;
  stroke-width: 1;
}
@keyframes hero-marker-in {
  to { opacity: 0.20; }
}
@keyframes hero-marker-pulse {
  0%, 100% { opacity: 0.18; }
  50%      { opacity: 0.28; }
}
.hero-stage {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero-title {
  font-size: clamp(64px, 13vw, 200px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0;
  opacity: 0;
  transform: translateY(8px);
  animation: hero-title-in 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) 0.4s forwards,
             hero-breath 7s ease-in-out 1.6s infinite;
}
@keyframes hero-title-in {
  0%   { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes hero-breath {
  0%, 100% { transform: scale(1.000); }
  50%      { transform: scale(1.006); }
}
.scroll-cue {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--mute);
  opacity: 0;
  animation: scroll-cue-in 1s ease 1.4s forwards;
}
@keyframes scroll-cue-in {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
.scroll-cue::after {
  content: '';
  display: block;
  width: 1px;
  height: 32px;
  background: var(--mute);
  margin: 12px auto 0;
  animation: scroll-line 2.4s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scroll-line {
  0% { transform: scaleY(0); }
  50% { transform: scaleY(1); }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- Section base --- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--section-py) var(--gutter);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 28px;
}
.section-num {
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--mute);
}
.section-title {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
}

/* --- Sound --- */
.video-main { margin-bottom: clamp(56px, 7vw, 96px); }
.video-frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--ink);
  overflow: hidden;
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-meta { margin-top: 24px; }
.video-title {
  margin: 0 0 6px;
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 400;
  letter-spacing: 0.005em;
}
.video-caption {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mute);
  text-transform: uppercase;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3vw, 48px);
  margin-bottom: 48px;
}
.video-grid a { display: block; }
.thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--ink);
}
.thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(0.96);
  transition: transform 0.8s ease, filter 0.6s ease;
}
.video-grid a:hover .thumb img {
  transform: scale(1.04);
  filter: grayscale(0) contrast(1);
}
.thumb-caption {
  margin: 16px 0 0;
  font-size: 14px;
  letter-spacing: 0.04em;
}
.section-foot {
  margin-top: 40px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

/* --- Coming Soon --- */
.coming-soon {
  text-align: center;
  padding: clamp(40px, 5vw, 64px) 0;
}
.coming-soon-text {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 400;
  letter-spacing: 0.02em;
  margin: 0;
}

/* --- About --- */
.about-bio {
  max-width: 720px;
  margin-bottom: clamp(56px, 8vw, 96px);
}
.bio-en {
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.75;
  letter-spacing: 0.005em;
  margin: 0 0 32px;
  font-weight: 400;
}
.bio-jp {
  font-size: 14px;
  line-height: 2;
  color: var(--mute);
  margin: 0;
  font-feature-settings: "palt" 1;
}
.members-title {
  font-size: clamp(20px, 2vw, 24px);
  letter-spacing: -0.005em;
  color: var(--ink);
  font-weight: 400;
  margin: 0 0 28px;
}
.members-list {
  display: grid;
  gap: 4px;
  max-width: 520px;
}
.members-list li {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 20px 0;
  border-bottom: 1px solid var(--hairline);
  gap: 24px;
}
.member-name {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.member-jp {
  font-size: 16px;
  letter-spacing: 0.02em;
  font-weight: 400;
}
.member-romaji {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
  font-weight: 400;
}
.member-part {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mute);
  font-weight: 400;
  white-space: nowrap;
}

/* --- Contact --- */
.contact-form {
  max-width: 560px;
  display: grid;
  gap: 32px;
  margin-bottom: 64px;
}
.field {
  display: grid;
  gap: 10px;
}
.field > label {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 400;
}
.field input,
.field textarea {
  width: 100%;
  padding: 14px 0;
  font: inherit;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  outline: none;
  transition: border-color 0.3s ease;
}
.field textarea {
  resize: vertical;
  min-height: 120px;
  padding: 14px 0;
}
.field input:focus,
.field textarea:focus {
  border-bottom-color: var(--ink);
}

/* Custom Select */
.select {
  position: relative;
  width: 100%;
}
.select-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  font: inherit;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  text-align: left;
  transition: border-color 0.3s ease;
  cursor: pointer;
}
.select-trigger:hover { opacity: 1; }
.select-trigger:focus-visible {
  outline: none;
  border-bottom-color: var(--ink);
}
.select.is-open .select-trigger { border-bottom-color: var(--ink); }
.select-value { font-weight: 400; }
.select.is-empty .select-value { color: var(--mute); }
.select-arrow {
  flex-shrink: 0;
  color: var(--ink);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.select.is-open .select-arrow { transform: rotate(180deg); }
.select-list {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 6px 0;
  background: #FFFFFF;
  border: 1px solid var(--hairline);
  box-shadow: 0 24px 48px -24px rgba(13, 13, 18, 0.18),
              0 4px 12px -4px rgba(13, 13, 18, 0.06);
  z-index: 50;
  max-height: 320px;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.select.is-open .select-list {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.select-list li {
  padding: 14px 20px;
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.18s ease;
  outline: none;
}
.select-list li:hover,
.select-list li:focus,
.select-list li.is-active {
  background: var(--hover-bg);
}
.select-list li[aria-selected="true"] {
  font-weight: 500;
}

.hp-field { display: none; }
.submit {
  justify-self: start;
  margin-top: 8px;
  padding: 14px 40px;
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--base);
  background: var(--ink);
  border-radius: 0;
  font-weight: 400;
  transition: background 0.4s ease, transform 0.4s ease;
}
.submit:hover { background: var(--mute); opacity: 1; }
.form-error {
  margin-top: 12px;
  font-size: 13px;
  color: #a1454a;
}

/* Success card */
.contact-success {
  max-width: 560px;
  margin: 0 0 64px;
  padding: 48px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  animation: success-in 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes success-in {
  0%   { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}
.success-label {
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 28px;
  font-weight: 400;
}
.success-text {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 16px;
  font-weight: 400;
  letter-spacing: 0.005em;
}
.success-text-sub {
  margin-bottom: 32px;
}
.success-sign {
  font-size: 13px;
  color: var(--mute);
  margin: 0;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.contact-direct { margin-bottom: 56px; }
.contact-email-label {
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 6px;
  font-weight: 400;
}
.contact-email {
  font-size: 15px;
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.01em;
}

/* Social with hover-reverse badge */
.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  border-top: 1px solid var(--hairline);
  padding-top: 32px;
  scroll-margin-top: 100px;
  min-height: 64px;
}
.platforms a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 6px;
  min-height: 42px;
  font-size: 14px;
  letter-spacing: 0.005em;
  font-weight: 400;
  color: var(--ink);
  border-radius: 7px;
  background: transparent;
  transition: background 0.35s ease, color 0.35s ease, opacity 0.35s ease;
  box-sizing: border-box;
}
.platforms a:hover {
  opacity: 1;
  background: #2A2A30;
  color: var(--base);
}
.platforms a:hover .platform-badge {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.20);
  color: var(--base);
}
.platform-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: rgba(13, 13, 18, 0.05);
  border: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, color 0.35s ease;
  color: var(--ink);
  box-sizing: border-box;
}
.platform-mark {
  display: block;
  width: 18px;
  height: 18px;
}
.platform-label {
  display: inline-block;
  white-space: nowrap;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 32px var(--gutter);
  text-align: center;
}
.copy {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
  margin: 0;
  font-weight: 400;
}

/* --- Reveal animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s ease, transform 1s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --- Tablet (compact nav) --- */
@media (max-width: 980px) and (min-width: 721px) {
  .nav-list { gap: 12px; }
  .nav-list a { font-size: 12px; letter-spacing: 0.04em; }
}

/* --- Mobile --- */
@media (max-width: 720px) {
  .site-header { padding: 18px var(--gutter); }
  .brand { font-size: 18px; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    padding: 0;
    z-index: 110;
    position: relative;
  }
  .nav-toggle span {
    display: block;
    width: 100%;
    height: 1px;
    background: var(--ink);
    transition: transform 0.4s ease, opacity 0.3s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .nav-list {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--base);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    padding: 0 var(--gutter);
    transform: translateY(-100%);
    transition: transform 0.5s cubic-bezier(0.7, 0, 0.3, 1);
    z-index: 105;
  }
  .nav-list.is-open { transform: translateY(0); }
  .nav-list a {
    font-size: 16px;
    letter-spacing: 0.06em;
  }

  .video-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .members-list li {
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 18px 0;
  }
  .member-jp { font-size: 15px; }
  .member-romaji { font-size: 11.5px; }
  .member-part { font-size: 12px; }

  .platforms { gap: 16px 22px; }
  .platforms a { font-size: 13px; }

  .select-list { max-height: 60vh; }
  .select-list li { padding: 14px 18px; font-size: 14px; }

  .hero-grid { background-size: 80px 80px; }
}

/* --- Small mobile --- */
@media (max-width: 380px) {
  .brand { font-size: 17px; }
  .nav-list a { font-size: 15px; }
  .hero-title {
    font-size: clamp(44px, 16vw, 56px);
    letter-spacing: -0.015em;
  }
  .members-list li { gap: 12px; }
  .platforms a { font-size: 12.5px; }
  .hero-grid { background-size: 60px 60px; }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .hero-title { opacity: 1; transform: none; }
  .scroll-cue { opacity: 1; }
  .hero-grid { opacity: 0.4; }
}