/* ── Operación 14 Album Page Styles ─────────────────────────── */

@font-face {
  font-family: "Eurostile Bold";
  src: url("/fonts/Eurostile Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Aquarius";
  src: url("/fonts/Aquarius Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Aquarius Six";
  src: url("/fonts/Aquarius Six Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: "Eurostile Bold", Arial, sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Prevent text-size adjustments and touch-zoom on mobile browsers */
html, body {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  touch-action: manipulation;
}

.op14-page {
  background: #f5f5f5;
  color: #ffffff;
}

/* ── Sections ────────────────────────────────────────────────── */
.op14-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  filter: brightness(1.1);
}

.op14-section__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, 
    rgba(212, 212, 212, 0.12) 0%, 
    rgba(180, 180, 180, 0.06) 50%, 
    rgba(150, 150, 150, 0.10) 100%);
  backdrop-filter: blur(1px) saturate(1.1);
  -webkit-backdrop-filter: blur(1px) saturate(1.1);
  z-index: 1;
}

.op14-content {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}

/* ── Glass Card (Section 1) ─────────────────────────────────── */
.glass-card {
  background: rgba(220, 220, 220, 0.12);
  border: 1px solid rgba(220, 220, 220, 0.25);
  border-radius: 16px;
  padding: 0;
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 1px 1px 0 rgba(255, 255, 255, 0.2),
    inset -1px -1px 0 rgba(0, 0, 0, 0.1);
  max-width: 700px;
  width: 100%;
  aspect-ratio: 1;
  text-align: center;
  transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.glass-card:hover {
  background: rgba(220, 220, 220, 0.15);
  border-color: rgba(220, 220, 220, 0.35);
  box-shadow: 
    0 12px 48px rgba(0, 0, 0, 0.12),
    inset 1px 1px 0 rgba(255, 255, 255, 0.25),
    inset -1px -1px 0 rgba(0, 0, 0, 0.15);
}

.glass-card__image {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
  border-radius: 0;
  margin: 0;
  padding: 0;
  box-shadow: none;
  display: block;
}

.glass-card__title {
  font-family: "Aquarius", serif;
  font-size: clamp(44px, 9vw, 72px);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0 0 12px;
  color: #ffffff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
  display: none;
}

.glass-card__subtitle {
  font-family: "Aquarius Six", monospace;
  font-size: 16px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #ffffff;
  margin: 0;
  opacity: 1;
  display: none;
}

/* ── Text Block (Sections 2 & 4) ────────────────────────────── */
.op14-text-block {
  max-width: 700px;
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.op14-text-image {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  display: block;
  border-radius: 0;
  object-fit: cover;
  object-position: center;
  margin: 0;
  padding: 0;
}

/* ── Player Block (Section 3) ────────────────────────────────── */
.op14-player-block {
  background: rgba(220, 220, 220, 0.08);
  border: 1px solid rgba(220, 220, 220, 0.2);
  border-radius: 16px;
  padding: 35px 35px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  max-width: 700px;
  width: 100%;
  
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
}

.op14-player-block__title {
  font-family: "Aquarius", serif;
  font-size: 32px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0 0 14px;
  color: #ffffff;
  text-align: center;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* ── Tracklist ────────────────────────────────────────────────── */
.op14-tracklist {
  display: grid;
  gap: 8px;
  margin-bottom: 0;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 6px;
}

.op14-track {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: rgba(220, 220, 220, 0.06);
  border: 1px solid rgba(220, 220, 220, 0.12);
  border-radius: 10px;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  min-height: 40px;
}

.op14-track:hover {
  background: rgba(220, 220, 220, 0.12);
  border-color: rgba(220, 220, 220, 0.2);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.08);
}

.op14-track.is-playing {
  background: rgba(220, 220, 220, 0.15);
  border-color: rgba(220, 220, 220, 0.3);
  box-shadow: 0 0 20px rgba(212, 212, 212, 0.2);
}

  gap: 8px;

.op14-track__num {
  font-family: "Aquarius Six", monospace;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  min-width: 24px;
  text-align: center;
}

.op14-track__title {
  font-family: "Aquarius", serif;
  font-size: 13px;
  letter-spacing: -0.01em;
  margin: 0;
  color: #ffffff;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.op14-track__time {
  font-family: "Aquarius Six", monospace;
  font-size: 11px;
  color: #ffffff;
  margin-left: 8px;
  margin-right: 8px;
  font-weight: 500;
  flex-shrink: 0;
}

.op14-track__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(220, 220, 220, 0.1);
  border: 1px solid rgba(220, 220, 220, 0.15);
  border-radius: 50%;
  color: #ffffff;
  cursor: pointer;
  transition: all 250ms ease;
  flex-shrink: 0;
}

.op14-track__btn:hover {
  background: rgba(220, 220, 220, 0.2);
  border-color: rgba(220, 220, 220, 0.3);
  color: #ffffff;
  transform: scale(1.08);
}

.op14-track.is-playing .op14-track__btn {
  background: rgba(220, 220, 220, 0.25);
  border-color: rgba(220, 220, 220, 0.4);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(212, 212, 212, 0.3);
}

/* ── Player Controls ───────────────────────────────────────── */
.op14-player-controls {
  display: grid;
  gap: 16px;
  padding: 16px 0 0 0;
  border-top: 1px solid rgba(220, 220, 220, 0.1);
  border-bottom: 1px solid rgba(220, 220, 220, 0.1);
  margin-bottom: 32px;
}

.op14-player-progress {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.op14-player-progress {}

.op14-play-btn {
  border-radius: 50%;
}

.op14-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(220, 220, 220, 0.1);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
}

.op14-progress-bar__filled {
  height: 100%;
  background: linear-gradient(90deg, #ffffff, #d0d0d0);
  transition: width 100ms linear;
  box-shadow: 0 0 10px rgba(212, 212, 212, 0.5);
}

.op14-progress-time {
  display: flex;
  justify-content: space-between;
  font-family: "Aquarius Six", monospace;
  font-size: 13px;
  color: #ffffff;
  font-weight: 500;
}

.op14-player-main {
  display: flex;
  align-items: center;
  gap: 20px;
}

.op14-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: rgba(220, 220, 220, 0.18);
  border: 1px solid rgba(220, 220, 220, 0.3);
  border-radius: 50%;
  color: #ffffff;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  font-weight: 600;
}

.op14-play-btn:hover {
  background: rgba(220, 220, 220, 0.25);
  border-color: rgba(220, 220, 220, 0.35);
  box-shadow: 0 0 24px rgba(212, 212, 212, 0.3);
  transform: scale(1.1);
}

.op14-play-btn.is-playing {
  background: rgba(220, 220, 220, 0.3);
  border-color: rgba(220, 220, 220, 0.4);
  box-shadow: 0 0 28px rgba(212, 212, 212, 0.4);
}

.op14-play-btn.is-loading {
  pointer-events: none;
  opacity: 0.7;
}

.op14-player-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  opacity: 0;
  pointer-events: none;
}

.op14-play-btn.is-loading .op14-player-loading {
  opacity: 1;
  animation: op14-spin 1s linear infinite;
}

@keyframes op14-spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.op14-player-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.op14-player-title {
  font-family: "Aquarius", serif;
  font-size: 18px;
  color: #ffffff;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.op14-player-artist {
  font-family: "Aquarius Six", monospace;
  font-size: 14px;
  color: #ffffff;
  margin: 0;
  font-weight: 500;
}

/* ── Download Section ────────────────────────────────────────── */
.op14-download-section {
  text-align: center;
}

.op14-download-title {
  font-family: "Aquarius Six", monospace;
  font-size: 14px;
  margin: 0 0 18px;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.op14-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 36px;
  background: rgba(220, 220, 220, 0.16);
  border: 1px solid rgba(220, 220, 220, 0.28);
  border-radius: 16px;
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
  font-weight: 600;
}

.op14-download-btn:hover {
  background: rgba(220, 220, 220, 0.2);
  border-color: rgba(220, 220, 220, 0.35);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 8px 28px rgba(212, 212, 212, 0.2);
  transform: translateY(-3px);
}

.op14-download-btn svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ── Navigation ──────────────────────────────────────────────── */
.op14-nav {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 100;
}

.op14-nav__back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: "Eurostile Bold", sans-serif;
  font-size: 13px;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 280ms ease;
  padding: 16px 28px;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-weight: 700;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.op14-nav__back:hover {
  color: #ffffff;
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
}

/* ── Reveal Animation ────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive – Tablet (768px) ───────────────────────────── */
@media (max-width: 768px) {
  .op14-section {
    background-attachment: scroll;
  }

  .op14-content {
    padding: 40px 16px;
  }

  .glass-card {
    padding: 0 !important;
  }

  .glass-card__image {
    margin: 0 !important;
  }

  .glass-card__title {
    font-size: clamp(28px, 6vw, 42px);
  }

  .glass-card__subtitle {
    font-size: 13px;
  }

  .op14-player-block {
    padding: 28px;
  }

  .op14-player-block__title {
    font-size: 26px;
    margin-bottom: 20px;
  }

  .op14-tracklist {
    gap: 8px;
    margin-bottom: 24px;
  }

  .op14-track {
    padding: 12px 14px;
  }

  .op14-track__title {
    font-size: 14px;
  }

  .op14-track__num {
    font-size: 11px;
    min-width: 26px;
  }

  .op14-track__time {
    font-size: 10px;
  }

  .op14-track__btn {
    width: 36px;
    height: 36px;
  }

  .op14-play-btn {
    width: 52px;
    height: 52px;
  }

  .op14-player-title {
    font-size: 14px;
  }

  .op14-download-btn {
    padding: 13px 26px;
    font-size: 12px;
    gap: 10px;
  }

  .op14-nav {
    top: 16px;
    left: 16px;
  }

  .op14-nav__back {
    font-size: 11px;
    padding: 8px 14px;
  }
}


/* ── Text Block (Sections 2 & 4) ────────────────────────────── */
/* Styles defined in stable box sizing section below */

/* Player: force high-contrast white text and set song names to Aquarius Six */
.op14-player-block,
.op14-player-block * {
  color: #ffffff !important;
}

.op14-track__title,
.op14-player-title {
  font-family: "Aquarius Six", monospace !important;
  color: #ffffff !important;
}

.op14-track__num,
.op14-track__time,
.op14-player-artist,
.op14-download-btn,
.op14-download-title {
  color: #ffffff !important;
}

/* Hide redundant download heading if present */
.op14-download-title {
  display: none;
}

/* ── Player Block (Section 3) ────────────────────────────────── */
.op14-player-block {
  background: rgba(220, 220, 220, 0.08);
  border: 1px solid rgba(220, 220, 220, 0.2);
  border-radius: 20px;
  padding: 40px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  max-width: 640px;
  width: 100%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.op14-player-block__title {
  font-family: "Aquarius", serif;
  font-size: 32px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0 0 28px;
  color: #dcdcdc;
  text-align: center;
}

/* ── Tracklist ────────────────────────────────────────────────── */
.op14-tracklist {
  display: grid;
  gap: 10px;
  margin-bottom: 32px;
}

.op14-track {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: rgba(220, 220, 220, 0.06);
  border: 1px solid rgba(220, 220, 220, 0.12);
  border-radius: 10px;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  min-height: 40px;
}

.op14-track:hover {
  background: rgba(220, 220, 220, 0.12);
  border-color: rgba(220, 220, 220, 0.2);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.08);
}

.op14-track.is-playing {
  background: rgba(220, 220, 220, 0.15);
  border-color: rgba(220, 220, 220, 0.3);
  box-shadow: 0 0 20px rgba(212, 212, 212, 0.2);
}

.op14-track__info {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.op14-track__num {
  font-family: "Aquarius Six", monospace;
  font-size: 12px;
  font-weight: 600;
  color: #a0a0a0;
  min-width: 28px;
  text-align: center;
}

.op14-track__title {
  font-family: "Aquarius", serif;
  font-size: 15px;
  letter-spacing: -0.01em;
  margin: 0;
  color: #dcdcdc;
}

.op14-track__time {
  font-family: "Aquarius Six", monospace;
  font-size: 11px;
  color: #909090;
  margin-left: auto;
  margin-right: 12px;
}

.op14-track__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(220, 220, 220, 0.1);
  border: 1px solid rgba(220, 220, 220, 0.15);
  border-radius: 50%;
  color: #c0c0c0;
  cursor: pointer;
  transition: all 250ms ease;
  flex-shrink: 0;
}

.op14-track__btn:hover {
  background: rgba(220, 220, 220, 0.2);
  border-color: rgba(220, 220, 220, 0.3);
  color: #dcdcdc;
  transform: scale(1.08);
}

.op14-track.is-playing .op14-track__btn {
  background: rgba(220, 220, 220, 0.25);
  border-color: rgba(220, 220, 220, 0.4);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(212, 212, 212, 0.3);
}

/* ── Player Controls ───────────────────────────────────────── */
.op14-player-controls {
  display: grid;
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid rgba(220, 220, 220, 0.1);
  border-bottom: 1px solid rgba(220, 220, 220, 0.1);
  margin-bottom: 28px;
}

.op14-player-progress {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.op14-progress-bar {
  width: 100%;
  height: 5px;
  background: rgba(220, 220, 220, 0.1);
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
}

.op14-progress-bar__filled {
  height: 100%;
  background: linear-gradient(90deg, #dcdcdc, #c0c0c0);
  transition: width 100ms linear;
  box-shadow: 0 0 8px rgba(212, 212, 212, 0.4);
}

.op14-progress-time {
  display: flex;
  justify-content: space-between;
  font-family: "Aquarius Six", monospace;
  font-size: 11px;
  color: #909090;
}

.op14-player-main {
  display: flex;
  align-items: center;
  gap: 18px;
}

.op14-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: rgba(220, 220, 220, 0.15);
  border: 1px solid rgba(220, 220, 220, 0.25);
  border-radius: 50%;
  color: #dcdcdc;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.op14-play-btn:hover {
  background: rgba(220, 220, 220, 0.25);
  border-color: rgba(220, 220, 220, 0.35);
  box-shadow: 0 0 20px rgba(212, 212, 212, 0.25);
  transform: scale(1.08);
}

.op14-play-btn.is-playing {
  background: rgba(220, 220, 220, 0.3);
  border-color: rgba(220, 220, 220, 0.4);
  box-shadow: 0 0 24px rgba(212, 212, 212, 0.3);
}

.op14-player-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.op14-player-title {
  font-family: "Aquarius", serif;
  font-size: 15px;
  color: #dcdcdc;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.op14-player-artist {
  font-family: "Aquarius Six", monospace;
  font-size: 11px;
  color: #909090;
  margin: 0;
}

/* ── Download Section ────────────────────────────────────────── */
.op14-download-section {
  text-align: center;
}

.op14-download-title {
  font-family: "Aquarius Six", monospace;
  font-size: 12px;
  margin: 0 0 12px;
  color: #a0a0a0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.op14-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: rgba(220, 220, 220, 0.12);
  border: 1px solid rgba(220, 220, 220, 0.25);
  border-radius: 10px;
  color: #dcdcdc;
  font-family: "Eurostile Bold", sans-serif;
  font-size: 13px;
  text-decoration: none;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.op14-download-btn:hover {
  background: rgba(220, 220, 220, 0.2);
  border-color: rgba(220, 220, 220, 0.35);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 8px 24px rgba(212, 212, 212, 0.15);
  transform: translateY(-2px);
}

.op14-download-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* ── Navigation ──────────────────────────────────────────────── */
.op14-nav {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 100;
}

.op14-nav__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Eurostile Bold", sans-serif;
  font-size: 12px;
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 250ms ease;
  padding: 8px 16px;
  border-radius: 8px;
  backup-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ── Reveal Animation ────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .op14-section {
    background-attachment: scroll;
  }

  .op14-content {
    padding: 40px 16px;
  }

  .glass-card {
    padding: 0;
  }

  .glass-card__image {
    margin: 0;
  }

  .glass-card__title {
    font-size: clamp(24px, 5vw, 36px);
  }

  .op14-player-block {
    padding: 24px;
    max-width: 100%;
    aspect-ratio: 1;
    height: auto;
  }

  .op14-player-block__title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .op14-tracklist {
    gap: 8px;
    margin-bottom: 24px;
  }

  .op14-track {
    padding: 12px 14px;
  }

  .op14-track__title {
    font-size: 14px;
  }

  .op14-track__num {
    font-size: 11px;
  }

  .op14-track__time {
    font-size: 10px;
  }

  .op14-track__btn {
    width: 36px;
    height: 36px;
  }

  .op14-play-btn {
    width: 48px;
    height: 48px;
  }

  .op14-nav {
    top: 16px;
    left: 16px;
  }

  .op14-nav__back {
    font-size: 11px;
    padding: 6px 12px;
  }
}

/* ── Dynamic Back Button Styles ──────────────────────────────── */
.op14-nav__back--dark-bg {
  color: #ffffff;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid rgba(255, 255, 255, 0.3);
  transition: all 280ms ease;
}

.op14-nav__back--dark-bg:hover {
  color: #ffffff;
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.5);
}

.op14-nav__back--light-bg {
  color: #1a1a1a;
  background: rgba(255, 255, 255, 0.72);
  border: 2px solid rgba(0, 0, 0, 0.15);
  transition: all 280ms ease;
  font-weight: 700;
}

.op14-nav__back--light-bg:hover {
  color: #000000;
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* Ensure Sections 2 & 4 images completely fill their boxes */
.op14-text-block {
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.op14-text-block .op14-text-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 0;
}

/* Small tweak: if the image is taller than container, ensure center-crop */
.op14-text-image {
  object-position: center center;
}

/* ── Stable Box Sizing & Centering (clamp + aspect-ratio) ── */
:root {
  --op-card-min: 320px;
  --op-card-pref: 45vw;
  --op-card-max: 700px;
  --op-text-min: 320px;
  --op-text-pref: 60vw;
  --op-text-max: 900px;
}

/* Keep the visual boxes stable across zoom and devices */
.glass-card {
  width: clamp(var(--op-card-min), var(--op-card-pref), var(--op-card-max)) !important;
  aspect-ratio: 1 / 1 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
  position: relative !important;
  padding: 0 !important;
}

.glass-card__image {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  object-position: center !important;
  max-width: 100% !important;
  max-height: 100% !important;
  display: block !important;
  position: static !important;
  border-radius: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  box-sizing: border-box !important;
}

.op14-text-block {
  width: clamp(var(--op-text-min), var(--op-text-pref), var(--op-text-max)) !important;
  aspect-ratio: 1 / 1 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
}

.op14-text-image {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  object-position: center !important;
  display: block !important;
  border-radius: 0 !important;
  position: static !important;
}

/* Minor performance/consistency hints to reduce layout jitter while zooming */
.op14-content,
.op14-player-block {
  -webkit-font-smoothing: antialiased;
  transform: translateZ(0);
}

@media (max-width: 480px) {
  .op14-section {
    background-attachment: scroll;
  }

  .op14-content {
    padding: 20px 12px;
    min-height: auto;
  }

  .glass-card,
  .op14-text-block {
    width: calc(100% - 24px) !important;
    aspect-ratio: 1 / 1 !important;
    max-width: 100% !important;
  }

  .glass-card__image,
  .op14-text-image {
    height: 100% !important;
    max-height: 100% !important;
  }

  .glass-card__title {
    font-size: 24px;
    display: none;
  }

  .glass-card__subtitle {
    display: none;
  }

  .op14-player-block {
    padding: 20px;
    max-width: 100%;
  }

  .op14-player-block__title {
    font-size: 22px;
    margin-bottom: 16px;
  }

  .op14-tracklist {
    gap: 6px;
    margin-bottom: 16px;
  }

  .op14-track {
    padding: 10px 10px;
    min-height: 36px;
  }

  .op14-track__info {
    gap: 12px;
  }

  .op14-track__num {
    font-size: 11px;
    min-width: 24px;
  }

  .op14-track__title {
    font-size: 13px;
  }

  .op14-track__time {
    font-size: 10px;
    margin-right: 8px;
  }

  .op14-track__btn {
    width: 32px;
    height: 32px;
  }

  .op14-player-controls {
    gap: 12px;
    padding: 12px 0;
    margin-bottom: 16px;
  }

  .op14-play-btn {
    width: 48px;
    height: 48px;
  }

  .op14-player-title {
    font-size: 13px;
  }

  .op14-player-artist {
    font-size: 10px;
  }

  .op14-download-btn {
    padding: 12px 20px;
    font-size: 12px;
    gap: 8px;
  }

  .op14-nav {
    top: 12px;
    left: 12px;
  }

  .op14-nav__back {
    font-size: 11px;
    padding: 8px 12px;
  }

  :root {
    --op-card-min: 280px;
    --op-card-pref: 90vw;
    --op-card-max: 100%;
    --op-text-min: 280px;
    --op-text-pref: 90vw;
    --op-text-max: 100%;
  }
}