:root {
  --black: #08090b;
  --black-soft: #101216;
  --navy: #0b1728;
  --navy-light: #142844;
  --white: #f7f8fa;
  --muted: #aeb4bf;
  --line: rgba(255, 255, 255, 0.14);
  --blue: #315d91;
  --blue-light: #6d96c5;
  --max-width: 1180px;
  --header-height: 92px;
  --transition: 260ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  background: var(--black);
  color: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
}

.site-header.scrolled {
  background: rgba(8, 9, 11, 0.86);
  border-color: var(--line);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-block: 13px;
}

.brand {
  display: flex;
  align-items: center;
  height: 100%;
}

.brand img {
  display: block;
  width: 154px;
  max-height: 62px;
  height: auto;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}

.desktop-nav a,
.mobile-menu a {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.desktop-nav a:hover,
.mobile-menu a:hover {
  color: var(--white);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.language-switcher {
  display: flex;
  align-items: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.lang-btn {
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 3px;
  transition: color var(--transition);
}

.lang-btn:hover,
.lang-btn.active {
  color: var(--white);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 25px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button-small {
  min-height: 38px;
  padding-inline: 18px;
  font-size: 0.68rem;
}

.button-primary {
  background: var(--white);
  color: var(--black);
}

.button-primary:hover {
  background: #dce4ee;
}

.button-outline,
.button-ghost {
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.02);
  color: var(--white);
}

.button-outline:hover,
.button-ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 4px auto;
  background: var(--white);
}

.mobile-menu {
  display: none;
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -3;
  background: url("assets/images/hero-bg.png") center center / cover no-repeat;
  transform: scale(1.03);
  animation: heroBreath 12s ease-in-out infinite alternate;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(5, 7, 10, 0.96) 0%, rgba(5, 7, 10, 0.78) 44%, rgba(5, 7, 10, 0.28) 100%),
    linear-gradient(0deg, rgba(8, 9, 11, 0.92) 0%, transparent 40%, rgba(8, 9, 11, 0.2) 100%);
}

.hero-content {
  padding-top: var(--header-height);
  max-width: 820px;
}

.eyebrow {
  color: var(--blue-light);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  line-height: 1.4;
}

.hero h1 {
  max-width: 850px;
  margin-top: 18px;
  font-size: clamp(3.2rem, 7vw, 6.8rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero-text {
  max-width: 630px;
  margin-top: 28px;
  color: #d4d8df;
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  width: 24px;
  height: 42px;
  transform: translateX(-50%);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 20px;
}

.scroll-cue span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 3px;
  height: 7px;
  border-radius: 4px;
  background: var(--white);
  transform: translateX(-50%);
  animation: scrollDot 1.8s ease-in-out infinite;
}

/* General sections */
.section {
  padding: 130px 0;
}

.about-section {
  background: var(--black-soft);
}

.split-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(50px, 10vw, 150px);
  align-items: start;
}

.section-heading h2,
.center-heading h2,
.contact-inner h2,
.partner-inner h2,
.donation-inner h2 {
  margin-top: 18px;
  font-size: clamp(2.6rem, 5vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.03;
}

.section-copy {
  max-width: 660px;
  color: #d0d4dc;
  font-size: 1.08rem;
  line-height: 1.9;
}

.section-copy p + p {
  margin-top: 22px;
}

.muted-copy {
  color: var(--muted);
}

/* Work */
.listen-section {
  background: linear-gradient(180deg, var(--black) 0%, var(--navy) 100%);
}

.center-heading {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.center-heading > p:last-child {
  max-width: 620px;
  margin: 24px auto 0;
  color: var(--muted);
}

.tracks {
  max-width: 950px;
  margin: 72px auto 0;
  border-top: 1px solid var(--line);
}

.track-card {
  display: grid;
  grid-template-columns: 70px 1fr minmax(280px, 400px);
  gap: 30px;
  align-items: center;
  padding: 38px 0;
  border-bottom: 1px solid var(--line);
}

.track-number {
  color: var(--blue-light);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.track-label {
  color: var(--blue-light);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.track-info h3 {
  margin-top: 7px;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.3;
}

.track-credit {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.85rem;
}

audio {
  width: 100%;
  height: 40px;
  filter: invert(1) brightness(1.6);
  opacity: 0.9;
}

.coming-soon {
  display: flex;
  align-items: center;
  gap: 22px;
  max-width: 950px;
  margin: 70px auto 0;
  color: var(--muted);
  text-align: center;
}

.coming-soon p {
  white-space: nowrap;
}

.coming-soon p:first-of-type {
  color: var(--blue-light);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.coming-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* Partner */
.partner-section {
  background: var(--black-soft);
}

.partner-inner {
  max-width: 900px;
}

.partner-copy {
  max-width: 760px;
}

.partner-inner h2 {
  max-width: 650px;
}

.partner-copy > p:not(.eyebrow) {
  max-width: 700px;
  margin-top: 24px;
  color: #d0d4dc;
  font-size: 1.08rem;
  line-height: 1.9;
}

.partner-copy .muted-copy {
  color: var(--muted);
}

.partner-copy .button {
  margin-top: 38px;
}

/* Donation */
.donation-section {
  padding: 90px 0;
  background: #0d1b2e;
}

.donation-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.donation-inner h2 {
  max-width: 650px;
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.donation-inner p:not(.eyebrow) {
  max-width: 650px;
  margin-top: 18px;
  color: var(--muted);
}

/* Contact */
.contact-section {
  text-align: center;
  background: var(--black-soft);
}

.contact-inner {
  max-width: 780px;
  margin-inline: auto;
}

.contact-inner > p:not(.eyebrow) {
  max-width: 540px;
  margin: 25px auto 0;
  color: var(--muted);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 28px;
  margin-top: 42px;
}

.contact-email {
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 500;
  border-bottom: 1px solid var(--blue-light);
  padding-bottom: 4px;
}

.facebook-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.facebook-link:hover {
  color: var(--white);
}

/* Footer */
.site-footer {
  padding: 45px 0;
  background: var(--black);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
}

.footer-inner img {
  width: 135px;
}

.footer-inner p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.78rem;
}

.footer-right {
  display: flex;
  align-items: flex-end;
  gap: 25px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Animations */
@keyframes heroBreath {
  from { transform: scale(1.03); }
  to { transform: scale(1.07); }
}

@keyframes scrollDot {
  0%, 100% { opacity: 0.3; transform: translate(-50%, 0); }
  50% { opacity: 1; transform: translate(-50%, 8px); }
}

/* Responsive */
@media (max-width: 1000px) {
  .desktop-nav {
    gap: 20px;
  }

  .desktop-nav a {
    font-size: 0.7rem;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 86px;
  }

  .desktop-nav,
  .nav-actions > .button-small,
  .nav-actions > .language-switcher {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .mobile-menu {
    position: fixed;
    inset: var(--header-height) 0 0;
    display: flex;
    flex-direction: column;
    gap: 26px;
    padding: 40px 24px;
    background: rgba(8, 9, 11, 0.98);
    border-top: 1px solid var(--line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  }

  .mobile-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .mobile-menu a {
    font-size: 1rem;
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .track-card {
    grid-template-columns: 45px 1fr;
    gap: 20px;
  }

  .track-card audio {
    grid-column: 1 / -1;
  }

  .donation-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-right {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(calc(100% - 36px), var(--max-width));
  }

  .section {
    padding: 95px 0;
  }

  .hero h1 {
    font-size: clamp(2.9rem, 14vw, 4.5rem);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .coming-soon {
    gap: 12px;
    flex-direction: column;
  }

  .coming-line {
    display: none;
  }

  .contact-links {
    flex-direction: column;
    gap: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}