:root {
  --green: #1ed760;
  --green-soft: #70f49e;
  --ink: #080908;
  --panel: #111311;
  --panel-soft: #191c19;
  --text: #f5f7f5;
  --muted: #a5aba6;
  --line: rgba(255, 255, 255, 0.1);
  --sans: "DM Sans", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

button,
a,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: 20;
  opacity: 0.035;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

.eyebrow {
  display: block;
  color: var(--green-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.intro {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 38%, rgba(30, 215, 96, 0.12), transparent 28%),
    linear-gradient(145deg, #070807 0%, #111912 55%, #070807 100%);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.intro.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.intro-glow {
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 1px solid rgba(30, 215, 96, 0.18);
  animation: breathe 4s ease-in-out infinite;
}

.intro-glow::before,
.intro-glow::after {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(30, 215, 96, 0.12);
  border-radius: 50%;
}

.intro-glow::after {
  inset: 29%;
}

.intro-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
  text-align: center;
}

.intro-now-playing {
  width: min(390px, 88vw);
  margin: 34px auto 40px;
  padding: 17px 18px 15px;
  border: 1px solid rgba(30, 215, 96, 0.25);
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(30, 215, 96, 0.09), rgba(255, 255, 255, 0.025)),
    rgba(12, 15, 12, 0.72);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  text-align: left;
  backdrop-filter: blur(18px);
}

.intro-playing-top,
.intro-track-row {
  display: flex;
  align-items: center;
}

.intro-playing-top {
  justify-content: space-between;
  margin-bottom: 16px;
}

.intro-playing-status,
.intro-playing-time {
  color: var(--green-soft);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.intro-playing-time {
  color: #737b74;
  letter-spacing: 0.06em;
}

.intro-track-row {
  gap: 13px;
}

.intro-play-mark {
  display: grid;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #071108;
  font-size: 0.7rem;
  text-indent: 2px;
}

.intro-track-copy {
  display: grid;
  gap: 2px;
}

.intro-track-copy strong {
  font-size: 0.82rem;
}

.intro-track-copy span {
  color: var(--muted);
  font-size: 0.65rem;
}

.intro-equalizer {
  display: flex;
  height: 31px;
  align-items: center;
  gap: 3px;
  margin-left: auto;
}

.intro-equalizer i {
  width: 3px;
  height: 22%;
  border-radius: 99px;
  background: var(--green);
  animation: intro-wave 1.15s ease-in-out infinite;
}

.intro-equalizer i:nth-child(2n) {
  animation-delay: -0.45s;
}

.intro-equalizer i:nth-child(3n) {
  animation-delay: -0.75s;
}

.intro-progress {
  display: block;
  height: 3px;
  margin-top: 17px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.12);
}

.intro-progress i {
  display: block;
  width: 38%;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
  animation: intro-progress 4s ease-in-out infinite alternate;
}

.intro h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.065em;
}

.intro p {
  margin: 22px 0 28px;
  color: var(--muted);
}

.primary-button,
.secondary-button {
  min-height: 52px;
  padding: 0 25px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--green);
  color: #031006;
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-3px);
}

.primary-button svg {
  width: 18px;
  fill: currentColor;
}

.secondary-button {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease 0.25s;
}

.app-shell.is-visible {
  opacity: 1;
  visibility: visible;
}

.sidebar {
  position: fixed;
  inset: 0 auto 86px 0;
  z-index: 10;
  display: flex;
  width: 230px;
  flex-direction: column;
  padding: 30px 22px;
  border-right: 1px solid var(--line);
  background: rgba(8, 9, 8, 0.92);
  backdrop-filter: blur(20px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 1.5rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 31px;
  height: 31px;
  place-content: center;
  gap: 3px;
  border-radius: 50%;
  background: var(--green);
}

.brand-mark i {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 50%;
  background: #071108;
  transform: rotate(8deg);
}

.main-nav {
  display: grid;
  gap: 7px;
  margin-top: 42px;
}

.main-nav a {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 11px 12px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
}

.main-nav svg {
  width: 21px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.playlist-block {
  display: grid;
  gap: 14px;
  margin-top: 34px;
  padding-top: 27px;
  border-top: 1px solid var(--line);
}

.playlist-block span {
  color: #777d78;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.playlist-block a {
  color: var(--muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

.playlist-block a:hover {
  color: var(--green-soft);
}

.sidebar-note {
  margin: auto 0 0;
  color: #626762;
  font-size: 0.68rem;
  line-height: 1.7;
}

main {
  margin-left: 230px;
  padding-bottom: 86px;
}

.hero {
  position: relative;
  display: flex;
  min-height: 710px;
  flex-direction: column;
  overflow: hidden;
  background:
    linear-gradient(to bottom, transparent 55%, #0d0f0d 100%),
    radial-gradient(circle at 28% 50%, rgba(30, 215, 96, 0.22), transparent 25%),
    linear-gradient(135deg, #18311f 0%, #101610 43%, #0b0c0b 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -65% auto;
  width: 720px;
  height: 720px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  box-shadow:
    0 0 0 80px rgba(255, 255, 255, 0.015),
    0 0 0 160px rgba(255, 255, 255, 0.01);
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 34px;
}

.history-buttons {
  display: flex;
  gap: 9px;
}

.history-buttons span {
  display: grid;
  width: 35px;
  height: 35px;
  place-items: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.35);
  color: var(--muted);
  font-size: 1.6rem;
  line-height: 1;
}

.private-pill {
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.25);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(260px, 380px) minmax(350px, 1fr);
  gap: clamp(40px, 6vw, 90px);
  align-items: end;
  width: min(1180px, calc(100% - 68px));
  margin: auto auto 66px;
}

.cover-art {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 3px;
  background: #171914;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
}

.cover-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 7, 5, 0.02) 58%, rgba(4, 7, 5, 0.68) 100%),
    linear-gradient(90deg, rgba(4, 7, 5, 0.1), transparent 55%);
  pointer-events: none;
}

.cover-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 37%;
  filter: saturate(0.9) contrast(1.01) brightness(0.96);
  transition: transform 0.8s ease, filter 0.8s ease;
}

.cover-art:hover .cover-photo {
  transform: scale(1.025);
  filter: saturate(0.96) contrast(1.02) brightness(0.99);
}

.cover-frame {
  position: absolute;
  inset: 5%;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-right-color: transparent;
  border-bottom-color: transparent;
  pointer-events: none;
}

.cover-kicker,
.cover-signature,
.cover-catalog {
  position: absolute;
  z-index: 3;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cover-kicker {
  top: 7%;
  left: 7%;
  padding: 5px 7px;
  border: 1px solid rgba(255, 247, 228, 0.18);
  border-radius: 2px;
  background: rgba(5, 9, 6, 0.42);
  backdrop-filter: blur(4px);
}

.cover-signature {
  right: 7%;
  bottom: 6%;
}

.cover-catalog {
  top: 7%;
  right: 7%;
  padding: 5px 7px;
  border: 1px solid rgba(255, 247, 228, 0.18);
  border-radius: 2px;
  background: rgba(5, 9, 6, 0.42);
  color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(4px);
}

.cover-title {
  position: absolute;
  bottom: 8%;
  left: 7%;
  z-index: 3;
  color: #f2f5ec;
  font-size: clamp(2.2rem, 4.3vw, 4.1rem);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.075em;
  text-shadow: 0 3px 20px rgba(0, 0, 0, 0.55);
}

.hero-copy {
  padding-bottom: 8px;
}

.hero-copy h2 {
  margin: 12px 0 18px;
  font-size: clamp(4rem, 8.5vw, 8.8rem);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.08em;
}

.hero-description {
  max-width: 600px;
  margin: 0;
  color: #c4c9c4;
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.55;
}

.track-author {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.78rem;
}

.track-author strong {
  color: var(--text);
}

.track-author i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
}

.author-avatar {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--green-soft), #1b6f39);
  color: #071108;
  font-size: 0.7rem;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 29px;
}

.play-button,
.player-play {
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  color: #071008;
}

.play-button {
  width: 58px;
  height: 58px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.play-button:hover {
  transform: scale(1.06);
  box-shadow: 0 0 0 8px rgba(30, 215, 96, 0.1);
}

.play-button svg,
.player-play svg {
  width: 23px;
  fill: currentColor;
}

.heart-button {
  width: 32px;
  height: 32px;
  padding: 4px;
  border: 0;
  background: transparent;
  color: var(--muted);
  transition: color 0.2s ease, transform 0.2s ease;
}

.heart-button:hover,
.heart-button.is-liked {
  color: var(--green);
  transform: scale(1.08);
}

.heart-button svg,
.mini-heart {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.heart-button.is-liked svg {
  fill: currentColor;
}

.pause-icon {
  display: none;
}

.is-paused .play-icon {
  display: block;
}

.is-paused .pause-icon {
  display: none;
}

.play-icon {
  display: none;
}

.pause-icon {
  display: block;
}

.section-pad {
  padding: 120px clamp(28px, 8vw, 110px);
}

.story-section {
  background:
    radial-gradient(circle at 85% 20%, rgba(30, 215, 96, 0.07), transparent 24%),
    #0d0f0d;
}

.section-heading {
  max-width: 780px;
}

.section-heading h2,
.letter-intro h2,
.response-content h2 {
  margin: 15px 0 22px;
  font-size: clamp(2.8rem, 6.3vw, 6rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.065em;
}

.section-heading > p {
  max-width: 600px;
  color: var(--muted);
  line-height: 1.7;
}

.chapter {
  display: grid;
  grid-template-columns: 220px minmax(300px, 760px);
  gap: clamp(30px, 6vw, 90px);
  margin-top: 110px;
}

.chapter-label {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.chapter-label span {
  display: grid;
  min-width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(30, 215, 96, 0.3);
  border-radius: 50%;
  color: var(--green-soft);
  font-size: 0.7rem;
  font-weight: 700;
}

.chapter-label p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.6;
}

.chat {
  display: grid;
  gap: 12px;
}

.message {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 13px;
  max-width: 620px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.035);
}

.message.luan {
  margin-left: auto;
  border-color: rgba(30, 215, 96, 0.16);
  background: rgba(30, 215, 96, 0.055);
}

.message-avatar {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: #2c312c;
  color: #d9ddd9;
  font-size: 0.65rem;
  font-weight: 700;
}

.luan .message-avatar {
  background: var(--green);
  color: #071108;
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 2px 0 7px;
  font-size: 0.72rem;
}

.message-meta span {
  color: #696e69;
}

.message p {
  margin: 0;
  color: #c2c7c2;
  font-size: 0.9rem;
  line-height: 1.65;
}

.second-chapter {
  align-items: center;
  margin-top: 90px;
}

.quote-card {
  position: relative;
  padding: clamp(30px, 5vw, 65px);
  overflow: hidden;
  border: 1px solid rgba(30, 215, 96, 0.17);
  border-radius: 12px;
  background:
    radial-gradient(circle at 90% 15%, rgba(30, 215, 96, 0.14), transparent 30%),
    #151915;
}

.quote-mark {
  position: absolute;
  top: -28px;
  right: 24px;
  color: rgba(30, 215, 96, 0.08);
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16rem;
}

.quote-card > p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.6rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.quote-footer {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
  color: var(--muted);
  font-size: 0.76rem;
}

.sound-wave {
  display: flex;
  height: 18px;
  align-items: center;
  gap: 2px;
}

.sound-wave i {
  width: 2px;
  height: 35%;
  border-radius: 2px;
  background: var(--green);
  animation: wave 1.1s ease-in-out infinite;
}

.sound-wave i:nth-child(2n) {
  animation-delay: -0.4s;
}

.sound-wave i:nth-child(3n) {
  animation-delay: -0.7s;
}

.meaning-section {
  background: #121512;
}

.meaning-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 60px;
}

.meaning-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), transparent);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.meaning-card:hover {
  transform: translateY(-6px);
  border-color: rgba(30, 215, 96, 0.35);
}

.meaning-card > span {
  color: var(--green);
  font-size: 0.7rem;
  font-weight: 700;
}

.meaning-card h3 {
  margin: 75px 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.meaning-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.7;
}

.letter-section {
  background:
    radial-gradient(circle at 12% 10%, rgba(30, 215, 96, 0.08), transparent 22%),
    #0a0c0a;
}

.letter-intro {
  max-width: 740px;
  margin-bottom: 65px;
}

.letter {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: clamp(32px, 7vw, 80px);
  border-radius: 5px;
  background: #eee9dc;
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.42);
  color: #292a25;
  transform: rotate(-0.4deg);
}

.letter-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 45px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(41, 42, 37, 0.16);
  color: #77776f;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.letter p {
  margin: 0 0 22px;
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  font-weight: 500;
  line-height: 1.75;
}

.letter-signature {
  display: grid;
  gap: 5px;
  margin-top: 42px;
}

.letter-signature span {
  color: #77776f;
  font-size: 0.8rem;
}

.letter-signature strong {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.love-section {
  display: grid;
  padding: 28px clamp(28px, 8vw, 110px) 150px;
  place-items: center;
  background:
    radial-gradient(circle at 50% 30%, rgba(30, 215, 96, 0.1), transparent 24%),
    #0a0c0a;
}

.love-card {
  width: min(880px, 100%);
  padding: clamp(34px, 7vw, 72px);
  border: 1px solid rgba(30, 215, 96, 0.18);
  border-radius: 14px;
  background:
    linear-gradient(145deg, rgba(30, 215, 96, 0.08), rgba(255, 255, 255, 0.025)),
    rgba(17, 20, 17, 0.8);
  text-align: center;
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.32);
}

.love-card h2 {
  margin: 16px 0 12px;
  font-size: clamp(3.6rem, 10vw, 8.5rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.085em;
}

.love-card p {
  max-width: 520px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.7;
}

.response-section {
  position: relative;
  display: grid;
  min-height: 720px;
  place-items: center;
  overflow: hidden;
  text-align: center;
  background: #0f140f;
}

.response-orbit {
  position: absolute;
  width: min(760px, 90vw);
  aspect-ratio: 1;
  border: 1px solid rgba(30, 215, 96, 0.1);
  border-radius: 50%;
}

.response-orbit::before,
.response-orbit::after {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(30, 215, 96, 0.08);
  border-radius: 50%;
}

.response-orbit::after {
  inset: 29%;
}

.response-orbit span {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 18px var(--green);
}

.response-orbit span:nth-child(1) {
  top: 7%;
  left: 33%;
}

.response-orbit span:nth-child(2) {
  right: 4%;
  bottom: 33%;
}

.response-orbit span:nth-child(3) {
  bottom: 10%;
  left: 22%;
}

.response-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.response-content > p {
  max-width: 570px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.75;
}

.response-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.response-message {
  min-height: 26px;
  margin-top: 26px;
  color: var(--green-soft);
  font-size: 1rem;
  font-weight: 600;
}

.response-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 15px;
  border: 1px solid rgba(30, 215, 96, 0.28);
  border-radius: 999px;
  background: rgba(30, 215, 96, 0.08);
  color: var(--green-soft);
  font-size: 0.74rem;
  font-weight: 700;
  text-decoration: none;
  opacity: 0;
  transform: translateY(8px);
  visibility: hidden;
  transition:
    opacity 0.35s ease,
    transform 0.35s ease,
    visibility 0.35s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.response-whatsapp.is-visible {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.response-whatsapp:hover {
  background: rgba(30, 215, 96, 0.14);
  border-color: rgba(30, 215, 96, 0.45);
}

.response-whatsapp svg {
  width: 15px;
  fill: none;
  stroke: var(--green);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 34px clamp(28px, 8vw, 110px) 120px;
  border-top: 1px solid var(--line);
  background: #080908;
  color: #686d68;
  font-size: 0.72rem;
}

footer button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.72rem;
}

.player {
  position: fixed;
  inset: auto 0 0;
  z-index: 15;
  display: grid;
  grid-template-columns: 1fr minmax(300px, 1.2fr) 1fr;
  gap: 25px;
  align-items: center;
  height: 86px;
  padding: 11px 20px;
  border-top: 1px solid var(--line);
  background: rgba(15, 17, 15, 0.96);
  backdrop-filter: blur(18px);
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mini-cover {
  position: relative;
  width: 58px;
  height: 58px;
  overflow: hidden;
  background: #0b120d;
}

.mini-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 37%;
  filter: saturate(0.9) contrast(1.03);
}

.now-playing > div:nth-child(2) {
  display: grid;
  gap: 4px;
}

.now-playing strong {
  font-size: 0.78rem;
}

.now-playing span {
  color: var(--muted);
  font-size: 0.65rem;
}

.mini-heart {
  width: 17px;
  margin-left: 5px;
  color: var(--green);
}

.player-center {
  display: grid;
  gap: 7px;
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 23px;
}

.player-controls > button:not(.player-play) {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1rem;
}

.player-play {
  width: 30px;
  height: 30px;
  background: var(--text);
}

.player-play svg {
  width: 16px;
}

.progress-row {
  display: grid;
  grid-template-columns: 35px 1fr 35px;
  gap: 8px;
  align-items: center;
  color: #777d78;
  font-size: 0.58rem;
}

.progress-track {
  position: relative;
  height: 4px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 99px;
  background: #424742;
}

.progress-track span {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: var(--green);
}

.volume-control {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.volume-control svg {
  width: 17px;
  fill: none;
  stroke: var(--muted);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.volume-control input {
  width: 95px;
  accent-color: var(--green);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 106px;
  z-index: 100;
  max-width: 360px;
  padding: 13px 16px;
  border: 1px solid rgba(30, 215, 96, 0.22);
  border-radius: 7px;
  background: #182019;
  color: #d8e5da;
  font-size: 0.75rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(15px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

@keyframes breathe {
  50% {
    transform: scale(1.08);
    opacity: 0.6;
  }
}

@keyframes intro-wave {
  50% {
    height: 100%;
  }
}

@keyframes intro-progress {
  to {
    width: 76%;
  }
}

@keyframes wave {
  50% {
    height: 100%;
  }
}

@media (max-width: 980px) {
  .sidebar {
    display: none;
  }

  main {
    margin-left: 0;
  }

  .hero-content {
    grid-template-columns: minmax(230px, 330px) 1fr;
  }

  .hero-copy h2 {
    font-size: clamp(3.8rem, 10vw, 7rem);
  }

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

@media (max-width: 720px) {
  .intro-glow {
    width: 330px;
    height: 330px;
  }

  .intro-now-playing {
    margin: 28px auto 34px;
  }

  .topbar {
    padding: 18px;
  }

  .history-buttons {
    display: none;
  }

  .topbar {
    justify-content: flex-end;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    grid-template-columns: 1fr;
    width: calc(100% - 36px);
    margin: 24px auto 55px;
  }

  .cover-art {
    width: min(100%, 390px);
    margin: 0 auto;
  }

  .hero-copy h2 {
    margin-top: 10px;
    font-size: clamp(3.3rem, 18vw, 5.5rem);
  }

  .track-author {
    flex-wrap: wrap;
  }

  .section-pad {
    padding: 85px 20px;
  }

  .chapter {
    margin-top: 65px;
  }

  .message {
    padding: 14px;
  }

  .message.luan {
    margin-left: 12px;
  }

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

  .meaning-card {
    min-height: 205px;
  }

  .meaning-card h3 {
    margin-top: 45px;
  }

  .letter {
    transform: none;
  }

  .letter-top {
    gap: 15px;
    align-items: flex-start;
    flex-direction: column;
  }

  .response-actions {
    align-items: stretch;
    flex-direction: column;
  }

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

  .player {
    grid-template-columns: 1fr auto;
    height: 76px;
    padding: 9px 12px;
  }

  .mini-cover {
    width: 48px;
    height: 48px;
  }

  .now-playing span,
  .mini-heart,
  .progress-row,
  .volume-control,
  .player-controls > button:not(.player-play) {
    display: none;
  }

  .player-center {
    display: block;
  }

  main {
    padding-bottom: 76px;
  }

  .sidebar {
    bottom: 76px;
  }

  .toast {
    right: 12px;
    bottom: 90px;
    left: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}