/* =============================
ROOT
================================ */
:root {
  /* ===== COLOR ===== */
  --background: #fdf8f5;
  --background-soft: #f8f3ef;
  --white: #ffffff;
  --primary: #8e6b63;
  --primary-dark: #6e4f49;
  --secondary: #d7c3b5;
  --gold: #c5a46d;
  --text: #4d4d4d;
  --text-light: #7c7c7c;
  --border: #ece4dd;

  /* ===== SHADOW ===== */
  --shadow-soft: 0 8px 25px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 12px 35px rgba(0, 0, 0, 0.08);

  /* ===== BORDER ===== */
  --radius-small: 10px;
  --radius: 18px;
  --radius-large: 28px;

  /* ===== TRANSITION ===== */
  --transition: 0.35s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Montserrat", sans-serif;
  background: var(--background);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: none;
  outline: none;
  cursor: pointer;
  font-family: inherit;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  outline: none;
}

ul {
  list-style: none;
}

/* =============================
CONTAINER
================================ */
.container {
  width: min(100% - 40px, 1080px);
  margin-inline: auto;
}

/* =============================
MAIN LAYOUT
================================ */
.main-wrapper {
  display: flex;
  width: 100%;
  height: 100vh;
}

/* =============================
LEFT SIDE
================================ */
.left-side {
  position: relative;
  flex: 1;
  display: flex;
  background: #ddd url("dekstopbg.webp") 2% 35% / cover no-repeat;
  overflow: hidden;
}

/* ---- Overlay ---- */
.left-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  text-align: center;
  color: var(--white);
  background:
    radial-gradient(
      circle at top,
      rgba(255, 255, 255, 0.18),
      transparent 60%
    );
}

/* ---- Text ---- */
.left-subtitle {
  font-size: 0.95rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--white);
}

.left-title {
  margin: 20px 0;
  font-family: "Pinyon Script", cursive;
  font-size: 5rem;
  font-weight: 400;
  line-height: 1.1;
  color: var(--white);
}

.left-title span {
  display: block;
  margin: 0.3rem 0;
  font-size: 3.8rem;
}

.left-date {
  font-size: 1rem;
  letter-spacing: 3px;
  color: var(--white);
}

/* =============================
RIGHT SIDE
================================ */
.right-side {
  position: relative;
  flex: 0 0 430px;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
  background: #e9e9e9;
  scroll-behavior: smooth;
}

/* ---- Scrollbar ---- */
.right-side::-webkit-scrollbar {
  width: 8px;
}

.right-side::-webkit-scrollbar-thumb {
  background: var(--secondary);
  border-radius: 20px;
}

.right-side::-webkit-scrollbar-track {
  background: transparent;
}

/* =============================
COVER SCROLL LOCK 
================================ */
body.cover-active {
  overflow: hidden;
}

body.cover-active .right-side {
  overflow-y: hidden;
}

/* =============================
INVITATION CANVAS
================================ */
.invitation-canvas {
  position: relative;
  width: 100%;
  max-width: 430px;
  min-height: 100vh;
  background: var(--background);
  overflow: hidden;
}

/* =============================
MUSIC BUTTON
================================ */
.music-toggle {
  position: fixed;
  right: 15px;
  bottom: 10px;
  z-index: 100;
  width: 52px;
  height: 52px;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  color: var(--primary);
  opacity: 0;
  will-change: transform, opacity;
}

/* ---- Reveal Animation ---- */
@keyframes revealMusicButton {
  0% {
    opacity: 0;
    transform: translateY(18px) scale(0.9);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---- Idle Animation ---- */
@keyframes musicFloat {
  0% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-2px);
  }

  100% {
    transform: translateY(0);
  }
}

/* ---- Animation Trigger ---- */
.music-toggle.opened {
  animation:
    revealMusicButton 0.8s ease-out 6.6s forwards,
    musicFloat 3.5s ease-in-out 7.4s infinite;
}

/* ---- Music Rotation ---- */
@keyframes rotateMusic {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* ---- Music Playing ---- */
.music-toggle i {
  animation: rotateMusic 6s linear infinite;
  animation-play-state: paused;
}

.music-toggle.playing i {
  animation-play-state: running;
}

/* =============================
FORM
================================ */
input,
textarea,
select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-small);
  background: var(--white);
  color: var(--text);
  font-size: 0.95rem;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(142, 107, 99, 0.12);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

/* =============================
UTILITY
================================ */
.hidden {
  display: none !important;
}

::placeholder {
  color: var(--text-light);
  opacity: 0.8;
}