/* ============================================
   POLINA POROKHOVA — ARTIST WEBSITE
   Design: "Midnight Velvet"
   Palette: #1A1A2E night · #16213E velvet
            #C9A96E bronze · #E0C097 sand · #F0E6D2 linen
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Colors — Midnight Velvet */
  --bg-primary: #1A1A2E;
  --bg-secondary: #16213E;
  --bg-card: #1e2a4a;
  --bg-card-hover: #253358;
  --text-primary: #F0E6D2;
  --text-secondary: #B8A88E;
  --text-muted: #6b7a96;
  --accent-gold: #C9A96E;
  --accent-warm: #8b7a4f;
  --divider: #2a3556;

  /* Typography */
  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, 'Helvetica Neue', sans-serif;

  /* Spacing */
  --section-padding: 8rem;
  --content-max: 1200px;
  --gap: 2rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s var(--ease-out);
  --transition-med: 0.3s var(--ease-out);
  --transition-fast: 0.15s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-weight: 300;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--text-primary);
}

::selection {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

/* --- Navigation --- */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 3rem;
  transition: background var(--transition-med), padding var(--transition-med);
}

#nav.scrolled {
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  padding: 0.875rem 3rem;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

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

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: var(--transition-med);
  transform-origin: center;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-med), visibility var(--transition-med);
}

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

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 300;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

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

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

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/hero.jpg');
  background-size: cover;
  background-position: center 20%;
  background-repeat: no-repeat;
  transform: scale(1.05);
  transition: transform 0.1s linear;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 26, 46, 0.3) 0%,
    rgba(26, 26, 46, 0.5) 40%,
    rgba(26, 26, 46, 0.85) 80%,
    rgba(26, 26, 46, 1) 100%
  );
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(26, 26, 46, 0) 0%,
    rgba(26, 26, 46, 0.4) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 2rem;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: var(--accent-gold);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--text-muted);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Sections (common) --- */
.section {
  padding: var(--section-padding) 2rem;
  position: relative;
}

.section-inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.5;
  margin-top: 0.75rem;
}

/* --- Music Section --- */
.section-music {
  background: var(--bg-secondary);
}

.ep-card {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--divider);
  margin-bottom: 3rem;
  transition: border-color var(--transition-med);
}

.ep-card:hover {
  border-color: rgba(201, 169, 110, 0.3);
}

.ep-cover {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.ep-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ep-cover-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e2a4a, #2a3556);
  border: 1px solid var(--divider);
}

.ep-title-fallback {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--accent-gold);
}

.ep-artist-fallback {
  font-family: var(--font-body);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
}

.ep-info h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.ep-year {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.ep-tracks {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.music-players {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: start;
}

.player-col--left {
  position: sticky;
  top: 6rem;
}

.distrokid-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--divider);
  overflow: hidden;
  transition: border-color var(--transition-med), transform var(--transition-med);
}

.distrokid-card:hover {
  border-color: rgba(201, 169, 110, 0.3);
  transform: translateY(-4px);
}

.distrokid-card img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
}

.distrokid-card-info {
  padding: 1.25rem;
  text-align: center;
}

.distrokid-card-info h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 300;
  font-style: italic;
  margin-bottom: 0.15rem;
}

.distrokid-card-info p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.distrokid-card .btn {
  font-size: 0.65rem;
  padding: 0.6rem 1.25rem;
}

.player-col--right iframe {
  width: 100%;
}

.streaming-fallback {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1rem;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  border: none;
  cursor: pointer;
  transition: all var(--transition-med);
}

.btn-gold {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

.btn-gold:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn-outline {
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  background: transparent;
}

.btn-outline:hover {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

/* --- Moments / Video Section --- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.video-card {
  border-radius: 12px;
  overflow: hidden;
}

.video-wrapper {
  position: relative;
  padding-top: 56.25%; /* 16:9 */
  overflow: hidden;
  background: var(--bg-card);
  cursor: pointer;
}

.video-wrapper img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

.video-wrapper:hover img {
  transform: scale(1.03);
  opacity: 0.85;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 2;
  transition: transform var(--transition-fast);
}

.video-play-btn svg {
  width: 68px;
  height: 48px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.5));
}

.video-wrapper:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
}

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

.video-caption {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-top: 0.75rem;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  border-radius: 2px;
}

.about-photo::after {
  content: '';
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: -1rem;
  bottom: -1rem;
  border: 1px solid var(--accent-gold);
  opacity: 0.2;
  border-radius: 2px;
  z-index: -1;
}

.about-bio p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* --- Drop Cap — буква П --- */
.about-bio p:first-child::first-letter {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  float: left;
  line-height: 0.82;
  margin-right: 0.3rem;
  margin-top: 0.12rem;
  color: var(--accent-gold);
}

.about-quote {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-style: italic;
  color: var(--accent-gold);
  border-left: 2px solid var(--accent-gold);
  padding-left: 1.5rem;
  margin-top: 2rem;
  opacity: 0.8;
}

/* --- Collaborations --- */
.section-collaborations {
  background: var(--bg-secondary);
}

.collab-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.collab-card {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--divider);
  transition: border-color var(--transition-med), background var(--transition-med);
}

.collab-card:hover {
  border-color: rgba(201, 169, 110, 0.3);
  background: var(--bg-card-hover);
}

.collab-card img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--divider);
}

.collab-card-wide {
  grid-column: span 1;
}

.collab-card-wide .collab-info {
  justify-content: center;
}

.collab-info h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.collab-role {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.collab-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Connect Section --- */
.section-connect {
  text-align: center;
}

.connect-intro {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.connect-email {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-style: italic;
  color: var(--accent-gold);
  margin-bottom: 3rem;
  display: inline-block;
  position: relative;
}

.connect-email::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.3;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--divider);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition-med);
}

.social-links a:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
}

.social-links svg {
  width: 20px;
  height: 20px;
}

.connect-bandlink {
  margin-top: 2rem;
}

/* --- Footer --- */
.footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--divider);
}

.footer p {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.footer-subtle {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 0.85rem !important;
  margin-top: 0.5rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

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

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

  .hero-bg {
    transform: none;
    transition: none;
  }

  .hero-scroll-indicator {
    animation: none;
  }
}

/* --- Responsive: Tablet --- */
@media (max-width: 900px) {
  :root {
    --section-padding: 5rem;
  }

  #nav {
    padding: 1rem 1.5rem;
  }

  #nav.scrolled {
    padding: 0.75rem 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .ep-card {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-photo::after {
    top: 0.5rem;
    left: 0.5rem;
    right: -0.5rem;
    bottom: -0.5rem;
  }

  .music-players {
    grid-template-columns: 1fr;
  }

  .player-col--left {
    position: static;
    max-width: 250px;
    margin: 0 auto;
  }

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

  .collab-card-wide {
    grid-column: span 1;
  }

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

/* --- Responsive: Mobile --- */
@media (max-width: 480px) {
  :root {
    --section-padding: 4rem;
  }

  #nav {
    padding: 0.875rem 1rem;
  }

  .hero-name {
    font-size: clamp(2.5rem, 10vw, 3.5rem);
  }

  .section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .ep-cover {
    width: 150px;
    height: 150px;
  }

  .ep-info h3 {
    font-size: 1.4rem;
  }

  .about-quote {
    font-size: 1.1rem;
  }

  .connect-email {
    font-size: 1.3rem;
  }

  .social-links {
    gap: 1rem;
  }

  .social-links a {
    width: 40px;
    height: 40px;
  }
}