/* =========================================
   FOR ICA, ALWAYS
   Black & White Gothic Romance
   Emo • Dark Academia • Romantic Noir
========================================= */

:root {
  --bg: #080808;
  --bg-soft: #101010;
  --surface: #151515;
  --surface-light: #1c1c1c;

  --paper: #e8e5df;
  --paper-dim: #b8b5b0;

  --ink: #f0eeea;
  --muted: #999793;
  --muted-dark: #666461;

  --accent: #d7d3cd;
  --line: #333230;
  --line-light: #484644;

  --shadow: rgba(0, 0, 0, 0.65);
}

/* =========================================
   RESET & BASE
========================================= */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Lora", Georgia, serif;
  line-height: 1.95;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(
      ellipse at 50% 10%,
      rgba(255, 255, 255, 0.035),
      transparent 55%
    ),
    linear-gradient(
      180deg,
      #0c0c0c 0%,
      #080808 55%,
      #0e0e0e 100%
    );
}

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

button {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 1px solid var(--paper);
  outline-offset: 5px;
}

::selection {
  color: #080808;
  background: #e8e5df;
}

/* Subtle monochrome scrollbar */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #080808;
}

::-webkit-scrollbar-thumb {
  background: #454545;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #777;
}

/* =========================================
   TOP NAVIGATION
========================================= */

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 2px;
  background: rgba(255, 255, 255, 0.04);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: #f0eeea;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
  transition: width 0.1s linear;
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  padding: 22px 6%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 23px;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.brand span {
  color: #fff;
  display: inline-block;
  transition: transform 0.3s ease;
}

.brand:hover span {
  transform: scale(1.25);
}

.music-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid #3c3c3c;
  border-radius: 0;
  background: rgba(15, 15, 15, 0.8);
  color: #d8d5cf;
  font-family: Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    border-color 0.3s ease,
    background 0.3s ease,
    color 0.3s ease;
}

.music-button:hover {
  border-color: #aaa;
  background: #1a1a1a;
  color: #fff;
}

.music-button[aria-pressed="true"] {
  border-color: #bdb9b2;
  color: #fff;
}

/* =========================================
   HERO / OPENING
========================================= */

.hero {
  position: relative;
  min-height: 100svh;
  padding: 130px 24px 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
  text-align: center;
  background:
    radial-gradient(
      ellipse at 50% 43%,
      rgba(255, 255, 255, 0.055) 0%,
      rgba(255, 255, 255, 0.015) 30%,
      transparent 67%
    );
}

/* Atmospheric glow */

.hero-glow {
  position: absolute;
  z-index: -1;
  width: min(100vw, 780px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.055) 0%,
    rgba(255, 255, 255, 0.018) 35%,
    transparent 70%
  );
  animation: breathe 7s ease-in-out infinite alternate;
}

@keyframes breathe {
  from {
    opacity: 0.45;
    transform: scale(0.92);
  }

  to {
    opacity: 1;
    transform: scale(1.08);
  }
}

.eyebrow,
.chapter {
  margin: 0 0 23px;
  color: #999793;
  font-family: Arial, sans-serif;
  font-size: 9px;
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.hero h1,
.letter-section h2,
.final-section h2 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.hero h1 {
  margin: 28px 0 18px;
  color: #f0eeea;
  font-size: clamp(54px, 11vw, 100px);
  text-shadow: 0 4px 35px rgba(255, 255, 255, 0.04);
}

.hero h1 em {
  color: #bcb8b1;
  font-weight: 400;
  font-style: italic;
}

.hero-copy {
  max-width: 350px;
  margin: 0 0 35px;
  color: #a5a29d;
  font-size: 13px;
  line-height: 2;
}

/* =========================================
   GOTHIC ENVELOPE
========================================= */

.envelope {
  position: relative;
  width: 150px;
  height: 100px;
  margin: 10px auto 18px;
  border: 1px solid #454545;
  border-radius: 0;
  background: #191919;
  box-shadow:
    0 20px 55px rgba(0, 0, 0, 0.65),
    0 0 35px rgba(255, 255, 255, 0.025);
  transition:
    box-shadow 0.5s ease,
    transform 0.5s ease;
}

.envelope:hover {
  transform: translateY(-3px);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.75),
    0 0 30px rgba(255, 255, 255, 0.06);
}

.envelope::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 2;
  width: 0;
  height: 0;
  border-right: 75px solid transparent;
  border-bottom: 62px solid #222;
  border-left: 75px solid transparent;
}

.envelope::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: 2;
  width: 0;
  height: 0;
  border-right: 75px solid #161616;
  border-bottom: 50px solid transparent;
  border-left: 75px solid #161616;
}

.envelope-letter {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1;
  width: 128px;
  height: 77px;
  display: grid;
  place-items: start center;
  padding-top: 9px;
  background: #e8e5df;
  color: #171717;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 17px;
  font-style: italic;
  letter-spacing: 0.02em;
}

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  width: 0;
  height: 0;
  border-top: 60px solid #303030;
  border-right: 75px solid transparent;
  border-left: 75px solid transparent;
  transform-origin: top center;
  transition: transform 0.7s ease;
}

.envelope-heart {
  position: absolute;
  top: 40px;
  left: 0;
  z-index: 4;
  width: 100%;
  color: #f5f2ec;
  font-family: Georgia, serif;
  font-size: 25px;
  line-height: 1;
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

.envelope.open .envelope-flap {
  transform: rotateX(180deg);
}

.envelope.open .envelope-letter {
  animation: letter-rise 0.8s 0.25s both;
}

.envelope.open .envelope-heart {
  opacity: 0;
  transform: scale(0.6);
}

@keyframes letter-rise {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(-32px);
  }
}

/* =========================================
   BUTTONS
========================================= */

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 49px;
  padding: 13px 25px;
  border: 1px solid #d5d1ca;
  border-radius: 0;
  background: #e8e5df;
  color: #101010;
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    transform 0.3s ease;
}

.primary-button:hover {
  transform: translateY(-2px);
  border-color: #fff;
  background: #fff;
  color: #000;
}

.primary-button:disabled {
  opacity: 0.75;
  cursor: default;
}

.primary-button span {
  color: #555;
  font-size: 16px;
}

.tiny-note {
  margin-top: 18px;
  color: #77746f;
  font-size: 11px;
  font-style: italic;
  letter-spacing: 0.04em;
}

/* =========================================
   LETTER SECTIONS
========================================= */

.letter-section,
.final-section {
  position: relative;
  width: min(100% - 44px, 660px);
  margin: 0 auto;
  padding: 100px 0;
  border-top: 1px solid var(--line);
}

.letter-section::before,
.final-section::before {
  content: "✦";
  position: absolute;
  top: -12px;
  left: 50%;
  padding: 0 12px;
  background: var(--bg);
  color: #8e8b85;
  font-size: 12px;
  transform: translateX(-50%);
}

.chapter {
  margin-bottom: 21px;
  color: #8e8b85;
}

.letter-section h2,
.final-section h2 {
  margin: 0 0 42px;
  color: #eeece7;
  font-size: clamp(39px, 8vw, 65px);
}

.letter {
  color: #c4c1bb;
  font-size: 14px;
  font-weight: 400;
  line-height: 2.15;
  overflow-wrap: anywhere;
}

.letter p {
  margin: 0 0 25px;
}

.letter .highlight {
  margin: 38px 0;
  padding: 5px 0 5px 20px;
  border-left: 1px solid #bcb8b1;
  color: #eeece7;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 23px;
  font-weight: 500;
  font-style: italic;
  line-height: 1.55;
}

.heart-divider {
  margin: 55px 0 0;
  color: #d4d0c8;
  font-family: Georgia, serif;
  font-size: 20px;
  text-align: center;
  opacity: 0.75;
}

/* =========================================
   FINAL LETTER
========================================= */

.final-section {
  padding-top: 110px;
  padding-bottom: 125px;
}

.final-section h2 {
  font-size: clamp(42px, 9vw, 72px);
}

.final-section .letter {
  color: #d0cdc7;
}

.quote {
  position: relative;
  margin: 35px 0;
  padding: 26px 24px;
  border: 1px solid #363533;
  background:
    linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.035),
      rgba(255, 255, 255, 0.008)
    );
  color: #f1eee8;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 23px;
  font-style: italic;
  line-height: 1.7;
}

.quote::before {
  content: "“";
  display: block;
  margin-bottom: 8px;
  color: #77746f;
  font-family: Georgia, serif;
  font-size: 40px;
  line-height: 1;
}

.signature {
  margin: 8px 0 0 !important;
  color: #f0eeea;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 45px;
  font-style: italic;
  line-height: 1.3;
}

.signature span {
  color: #f0eeea;
}

.closing-note {
  margin-top: 5px !important;
  color: #8f8c86;
  font-size: 12px;
  font-style: italic;
  letter-spacing: 0.04em;
}

.final-section > .primary-button {
  margin-top: 28px;
}

/* =========================================
   FOOTER
========================================= */

footer {
  padding: 28px 20px 45px;
  border-top: 1px solid #262626;
  background: #080808;
  color: #77746f;
  font-size: 10px;
  letter-spacing: 0.13em;
  text-align: center;
}

footer p {
  margin: 0;
}

/* =========================================
   SCROLL REVEAL
========================================= */


/* =========================================
   SCROLL REVEAL — SAFE VERSION
   Surat tetap terlihat meskipun JavaScript gagal
========================================= */

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

/* Animate only after JavaScript marks a section */
.reveal.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal.visible {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
    animation: none;
  }
}


/* =========================================
   RESPONSIVE / MOBILE
========================================= */

@media (max-width: 480px) {
  .topbar {
    padding: 18px 17px;
  }

  .brand {
    font-size: 20px;
  }

  .music-button {
    gap: 5px;
    padding: 8px 10px;
    font-size: 10px;
    letter-spacing: 0.04em;
  }

  .hero {
    padding: 120px 22px 70px;
  }

  .hero h1 {
    font-size: clamp(49px, 13vw, 68px);
    line-height: 1.06;
  }

  .hero-copy {
    max-width: 290px;
    font-size: 12px;
  }

  .envelope {
    transform: scale(0.94);
  }

  .envelope:hover {
    transform: scale(0.94) translateY(-3px);
  }

  .letter-section,
  .final-section {
    width: calc(100% - 42px);
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .letter-section h2,
  .final-section h2 {
    margin-bottom: 32px;
    font-size: clamp(39px, 10vw, 51px);
  }

  .letter {
    font-size: 13px;
    line-height: 2.05;
  }

  .letter p {
    margin-bottom: 22px;
  }

  .letter .highlight {
    margin: 30px 0;
    padding-left: 15px;
    font-size: 21px;
  }

  .quote {
    padding: 21px 17px;
    font-size: 21px;
  }

  .signature {
    font-size: 40px;
  }

  .primary-button {
    min-height: 48px;
    padding: 12px 20px;
  }
}

/* =========================================
   REDUCED MOTION ACCESSIBILITY
========================================= */

@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;
  }

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

.letter-image {
  width: 100%;
  max-width: 600px;
  margin: 28px auto;
  text-align: center;
}

.letter-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
}

.letter-image figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  font-style: italic;
  opacity: 0.75;
}