:root {
  --black: #0d060b;
  --black-soft: #1b0d16;
  --pink: #ff4fa3;
  --pink-bright: #ff7abb;
  --pink-soft: #ffd5e9;
  --pink-pale: #fff1f8;
  --white: #fffafd;
  --muted: #c9aebd;
  --shadow: 0 22px 70px rgba(255, 79, 163, 0.18);
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 79, 163, 0.16), transparent 26%),
    radial-gradient(circle at 85% 20%, rgba(255, 157, 205, 0.1), transparent 30%),
    var(--black);
  color: var(--white);
  font-family: "DM Sans", sans-serif;
}

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

button {
  font: inherit;
}

.hidden {
  display: none;
}

.section {
  position: relative;
  padding: 100px 7%;
}

.eyebrow {
  color: var(--pink-bright);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

#confettiCanvas {
  position: fixed;
  inset: 0;
  z-index: 9999;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* INTRO */

.intro-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 79, 163, 0.25), transparent 30%),
    linear-gradient(150deg, #070305 0%, #180a13 60%, #050203 100%);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.intro-screen.leave {
  opacity: 0;
  visibility: hidden;
}

.intro-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(255, 122, 187, 0.18);
  border-radius: 50%;
  animation: breathe 3s infinite ease-in-out;
}

.intro-glow::before,
.intro-glow::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(255, 122, 187, 0.12);
  border-radius: 50%;
}

.intro-glow::before {
  inset: 35px;
}

.intro-glow::after {
  inset: 75px;
}

.intro-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  text-align: center;
}

.heart-shell {
  display: grid;
  place-items: center;
  width: 105px;
  height: 105px;
  margin: 26px auto;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 79, 163, 0.1));
  box-shadow: 0 0 50px rgba(255, 79, 163, 0.25);
  transform: rotate(45deg);
}

.heart-shell span {
  color: var(--pink);
  font-size: 3rem;
  filter: drop-shadow(0 0 14px rgba(255, 79, 163, 0.7));
  transform: rotate(-45deg);
  animation: heartbeat 1.4s infinite;
}

.intro-content h1 {
  margin-bottom: 20px;
  font-family: "Great Vibes", cursive;
  font-size: clamp(3.2rem, 8vw, 6.6rem);
  font-weight: 400;
  line-height: 0.95;
}

.intro-copy {
  max-width: 600px;
  margin: 0 auto 32px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.primary-button,
.secondary-button,
.wish-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 28px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--pink), #ff2d8f);
  color: white;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 15px 45px rgba(255, 79, 163, 0.35);
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.primary-button:hover,
.secondary-button:hover,
.wish-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 55px rgba(255, 79, 163, 0.5);
}

/* HERO */

.main-content {
  animation: revealPage 1s ease both;
}

.hero {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background:
    linear-gradient(rgba(10, 4, 8, 0.52), rgba(10, 4, 8, 0.84)),
    url("assets/precious-1.jpg") center 28% / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 6, 11, 0.92) 0%, rgba(13, 6, 11, 0.62) 48%, rgba(13, 6, 11, 0.76) 100%),
    linear-gradient(0deg, var(--black) 0%, transparent 35%);
}

.topbar {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 24px 7%;
}

.brand {
  color: white;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  text-decoration: none;
}

.brand span {
  color: var(--pink);
}

.music-button {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 17px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(9, 4, 7, 0.55);
  color: white;
  cursor: pointer;
  backdrop-filter: blur(15px);
}

.music-button.playing .music-icon {
  animation: spin 2.4s linear infinite;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 850px;
}

.hero-name {
  margin: 18px 0 5px;
  font-family: "Great Vibes", cursive;
  font-size: clamp(5rem, 14vw, 11rem);
  font-weight: 400;
  line-height: 0.75;
}

.hero-name span {
  display: block;
  margin-left: 12%;
  color: var(--pink-bright);
}

.hero-date {
  margin: 28px 0 18px;
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.35em;
}

.hero-message {
  max-width: 650px;
  margin-bottom: 32px;
  color: #e6cedb;
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.8;
}

.secondary-button {
  background: white;
  color: var(--black);
  box-shadow: none;
}

.scroll-note {
  position: absolute;
  z-index: 2;
  right: 7%;
  bottom: 36px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.scroll-note span {
  width: 45px;
  height: 1px;
  background: var(--pink);
}

.floating-shape {
  position: absolute;
  z-index: 1;
  border: 1px solid rgba(255, 122, 187, 0.2);
  border-radius: 50%;
}

.shape-one {
  top: 18%;
  right: 8%;
  width: 320px;
  height: 320px;
}

.shape-two {
  right: 25%;
  bottom: 8%;
  width: 120px;
  height: 120px;
}

.shape-three {
  top: 36%;
  right: 20%;
  width: 35px;
  height: 35px;
  background: rgba(255, 79, 163, 0.3);
  animation: float 4s infinite ease-in-out;
}

/* SHARED HEADING */

.section-heading {
  max-width: 700px;
  margin: 0 auto 60px;
  text-align: center;
}

.section-heading h3,
.finale-card h3 {
  margin: 12px 0 18px;
  font-family: "Great Vibes", cursive;
  font-size: clamp(3.4rem, 7vw, 6rem);
  font-weight: 400;
  line-height: 1;
}

.section-heading > p:last-child {
  color: var(--muted);
  line-height: 1.8;
}

/* PHOTOS */

.memories-section {
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 79, 163, 0.12), transparent 25%),
    #130910;
}

.photo-grid {
  display: grid;
  max-width: 1180px;
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
}

.polaroid {
  position: relative;
  padding: 14px 14px 22px;
  border-radius: 5px;
  background: #fff9fc;
  color: #1c0c15;
  box-shadow: 0 25px 65px rgba(0, 0, 0, 0.35);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.polaroid::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 50%;
  width: 90px;
  height: 26px;
  background: rgba(255, 183, 217, 0.78);
  transform: translateX(-50%) rotate(-2deg);
}

.polaroid:hover {
  z-index: 3;
  transform: translateY(-10px) rotate(0deg) scale(1.02);
  box-shadow: 0 32px 90px rgba(255, 79, 163, 0.2);
}

.polaroid img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 2px;
  filter: saturate(0.95) contrast(1.02);
}

.polaroid figcaption {
  padding: 16px 8px 4px;
  font-family: "Great Vibes", cursive;
  font-size: 1.65rem;
  text-align: center;
}

.tilt-left {
  transform: rotate(-2deg);
}

.tilt-right {
  transform: rotate(2deg);
}

/* REASONS */

.reasons-section {
  background:
    radial-gradient(circle at 80% 30%, rgba(255, 79, 163, 0.13), transparent 25%),
    var(--black);
}

.reason-grid {
  display: grid;
  max-width: 1000px;
  margin: 0 auto;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.reason-card {
  position: relative;
  min-height: 240px;
  overflow: hidden;
  padding: 32px;
  border: 1px solid rgba(255, 122, 187, 0.22);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 79, 163, 0.06)),
    var(--black-soft);
  color: white;
  text-align: left;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.reason-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(255, 122, 187, 0.12);
  border-radius: 50%;
}

.reason-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 122, 187, 0.55);
}

.reason-icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  margin-bottom: 28px;
  border-radius: 18px;
  background: var(--pink);
  font-size: 1.5rem;
  box-shadow: 0 12px 30px rgba(255, 79, 163, 0.3);
  transition: transform 0.4s ease;
}

.reason-title {
  display: block;
  color: var(--pink-soft);
  font-weight: 700;
}

.reason-text {
  display: block;
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  color: #ead4df;
  line-height: 1.75;
  opacity: 0;
  transform: translateY(12px);
  transition: max-height 0.55s ease, opacity 0.45s ease, transform 0.45s ease, margin 0.45s ease;
}

.reason-card.active .reason-icon {
  transform: rotate(360deg) scale(1.08);
}

.reason-card.active .reason-title {
  color: white;
}

.reason-card.active .reason-text {
  max-height: 180px;
  margin-top: 18px;
  opacity: 1;
  transform: translateY(0);
}

/* LETTER */

.letter-section {
  display: grid;
  min-height: 850px;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 122, 187, 0.17), transparent 32%),
    #160912;
}

.letter-wrapper {
  position: relative;
  width: min(820px, 100%);
  min-height: 610px;
}

.envelope {
  position: absolute;
  top: 80px;
  left: 50%;
  z-index: 5;
  width: min(540px, 92vw);
  height: 330px;
  cursor: pointer;
  transform: translateX(-50%);
  transition: transform 0.9s ease, opacity 0.7s ease, visibility 0.7s ease;
}

.envelope.opened {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(120px) scale(0.92);
}

.envelope-back,
.letter-preview,
.envelope-flap {
  position: absolute;
  inset: 0;
}

.envelope-back {
  border-radius: 0 0 18px 18px;
  background: linear-gradient(135deg, #ff4fa3, #9f205e);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
  clip-path: polygon(0 0, 50% 55%, 100% 0, 100% 100%, 0 100%);
}

.letter-preview {
  top: 45px;
  right: 50px;
  bottom: 45px;
  left: 50px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--pink-pale);
  color: #5e2142;
  text-align: center;
}

.letter-preview span {
  display: block;
  font-family: "Great Vibes", cursive;
  font-size: 3.4rem;
}

.letter-preview small {
  display: block;
  margin-top: -36px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.envelope-flap {
  z-index: 2;
  background: linear-gradient(135deg, #ff77b8, #e33b8d);
  clip-path: polygon(0 0, 50% 65%, 100% 0);
  transform-origin: top;
  transition: transform 0.65s ease;
}

.envelope:hover .envelope-flap {
  transform: rotateX(25deg);
}

.letter-content {
  position: relative;
  z-index: 2;
  width: min(700px, 100%);
  margin: 0 auto;
  padding: clamp(30px, 6vw, 65px);
  border: 1px solid #ead4df;
  border-radius: 14px;
  background:
    linear-gradient(rgba(255, 250, 253, 0.96), rgba(255, 241, 248, 0.97));
  color: #351424;
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(70px) scale(0.95);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.letter-content.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.letter-content::before {
  content: "♥";
  position: absolute;
  top: 24px;
  right: 30px;
  color: var(--pink);
  font-size: 2rem;
}

.letter-date {
  margin-bottom: 22px;
  color: #a82b68;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.25em;
}

.letter-content h3 {
  margin-bottom: 24px;
  font-family: "Great Vibes", cursive;
  font-size: 4rem;
  font-weight: 400;
}

.letter-content p {
  margin-bottom: 18px;
  line-height: 1.9;
}

.letter-signoff {
  margin-top: 30px;
  font-family: "Great Vibes", cursive;
  font-size: 2.35rem;
  line-height: 1.25 !important;
}

.letter-signoff span {
  font-family: "DM Sans", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
}

/* FINALE */

.finale-section {
  display: grid;
  min-height: 760px;
  place-items: center;
  text-align: center;
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 79, 163, 0.22), transparent 35%),
    var(--black);
}

.finale-card {
  width: min(760px, 100%);
  padding: clamp(40px, 7vw, 78px);
  border: 1px solid rgba(255, 122, 187, 0.25);
  border-radius: 38px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.065), rgba(255, 79, 163, 0.07));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.finale-card > p:not(.eyebrow) {
  max-width: 540px;
  margin: 0 auto 30px;
  color: var(--muted);
  line-height: 1.8;
}

.final-message {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(28px);
  transition: max-height 0.9s ease, opacity 0.8s ease, transform 0.8s ease, margin 0.8s ease;
}

.final-message.show {
  max-height: 360px;
  margin-top: 40px;
  opacity: 1;
  transform: translateY(0);
}

.final-heart {
  display: block;
  color: var(--pink);
  font-size: 4rem;
  filter: drop-shadow(0 0 18px rgba(255, 79, 163, 0.55));
  animation: heartbeat 1.4s infinite;
}

.final-message h4 {
  margin: 12px 0 14px;
  font-family: "Great Vibes", cursive;
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 400;
  line-height: 1;
}

.final-message p {
  color: #f2dce7;
  line-height: 1.8;
}

footer {
  padding: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

footer span {
  color: var(--pink);
}

/* REVEAL ANIMATION */

.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.polaroid.reveal.visible.tilt-left {
  transform: rotate(-2deg);
}

.polaroid.reveal.visible.tilt-right {
  transform: rotate(2deg);
}

/* ANIMATIONS */

@keyframes heartbeat {
  0%, 100% { transform: rotate(-45deg) scale(1); }
  14% { transform: rotate(-45deg) scale(1.18); }
  28% { transform: rotate(-45deg) scale(1); }
  42% { transform: rotate(-45deg) scale(1.12); }
  70% { transform: rotate(-45deg) scale(1); }
}

.final-heart {
  animation-name: finalHeartbeat;
}

@keyframes finalHeartbeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.18); }
  28% { transform: scale(1); }
  42% { transform: scale(1.12); }
  70% { transform: scale(1); }
}

@keyframes breathe {
  0%, 100% { transform: scale(0.95); opacity: 0.65; }
  50% { transform: scale(1.05); opacity: 1; }
}

@keyframes revealPage {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-name span {
    margin-left: 5%;
  }
}

@media (max-width: 650px) {
  .section {
    padding: 78px 20px;
  }

  .topbar {
    padding: 18px 20px;
  }

  .music-button {
    padding: 10px 13px;
  }

  #musicLabel {
    display: none;
  }

  .hero {
    background-position: center top;
  }

  .hero-name {
    font-size: clamp(4.4rem, 22vw, 7rem);
  }

  .hero-date {
    font-size: 0.9rem;
    letter-spacing: 0.25em;
  }

  .photo-grid,
  .reason-grid {
    grid-template-columns: 1fr;
  }

  .photo-grid {
    gap: 40px;
  }

  .scroll-note {
    display: none;
  }

  .letter-section {
    min-height: 760px;
  }

  .letter-wrapper {
    min-height: 570px;
  }

  .envelope {
    top: 70px;
    height: 250px;
  }

  .letter-preview {
    top: 35px;
    right: 32px;
    bottom: 35px;
    left: 32px;
  }

  .letter-preview span {
    font-size: 2.6rem;
  }

  .letter-preview small {
    margin-top: -25px;
  }

  .letter-content h3 {
    font-size: 3.1rem;
  }

  .letter-signoff {
    font-size: 1.95rem;
  }

  .intro-glow {
    width: 360px;
    height: 360px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}