/* ============================================================
   SOHA MONY'S BIRTHDAY WEBSITE
   Design: "Midnight Carnival" — a deep night sky that throws
   a surprise party. Warm gold candlelight + confetti pinks and
   mints float over indigo dark, like a party seen from far away.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&family=Nunito:ital,wght@0,400;0,600;0,700;0,800;1,600&display=swap');

:root {
  /* Color tokens */
  --night-1: #1B1035;
  --night-2: #2D1B4E;
  --night-3: #150C29;
  --gold: #FFC857;
  --gold-soft: #FFE0A3;
  --pink: #FF6FA5;
  --mint: #6FEFC1;
  --lavender: #C9B6E4;
  --cream: #FBF7F0;
  --shadow: rgba(10, 4, 26, 0.45);

  /* Type */
  --font-display: 'Fredoka', system-ui, sans-serif;
  --font-body: 'Nunito', system-ui, sans-serif;

  /* Layout */
  --max-width: 980px;
  --radius-lg: 28px;
  --radius-md: 18px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--cream);
  background: radial-gradient(ellipse at 20% -10%, var(--night-2) 0%, var(--night-1) 45%, var(--night-3) 100%);
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
}

a { color: inherit; }

/* ---------- Star field ---------- */
#stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.star {
  position: absolute;
  background: var(--cream);
  border-radius: 50%;
  opacity: 0.7;
  animation: twinkle 3.5s ease-in-out infinite;
}
@keyframes twinkle {
  0%, 100% { opacity: 0.15; transform: scale(0.8); }
  50% { opacity: 0.9; transform: scale(1.15); }
}

/* ---------- Layout shell ---------- */
.page {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 120px 24px 80px;
  min-height: 100vh;
}

/* ---------- Balloon navigation ---------- */
.balloon-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  justify-content: center;
  gap: clamp(10px, 3vw, 28px);
  padding: 18px 16px 10px;
  background: linear-gradient(to bottom, rgba(21, 12, 41, 0.9), rgba(21, 12, 41, 0));
  backdrop-filter: blur(2px);
}
.balloon-link {
  --bcolor: var(--pink);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--cream);
  opacity: 0.75;
  transition: transform 0.25s ease, opacity 0.25s ease;
  animation: bob 4.5s ease-in-out infinite;
}
.balloon-link:nth-child(2) { animation-delay: -1s; }
.balloon-link:nth-child(3) { animation-delay: -2s; }
.balloon-link:nth-child(4) { animation-delay: -3s; }
.balloon-link:nth-child(5) { animation-delay: -1.5s; }
.balloon-link:hover { transform: translateY(-6px) scale(1.06); opacity: 1; }
.balloon-link.active { opacity: 1; }
.balloon-link .balloon-shape {
  width: 30px;
  height: 38px;
  border-radius: 50% 50% 50% 50% / 58% 58% 42% 42%;
  background: radial-gradient(circle at 32% 28%, color-mix(in srgb, var(--bcolor) 60%, white), var(--bcolor) 70%);
  box-shadow: 0 6px 14px var(--shadow);
  position: relative;
  margin-bottom: 4px;
}
.balloon-link .balloon-shape::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1.5px;
  height: 16px;
  background: rgba(251, 247, 240, 0.4);
  transform: translateX(-50%);
}
.balloon-link.active .balloon-shape {
  box-shadow: 0 0 0 2px var(--cream), 0 6px 14px var(--shadow);
}
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--night-3);
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  border: none;
  padding: 14px 28px;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(255, 200, 87, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(255, 200, 87, 0.35); }
.btn:active { transform: translateY(0); }
.btn.ghost {
  background: transparent;
  color: var(--cream);
  border: 1.5px solid rgba(251, 247, 240, 0.35);
  box-shadow: none;
}
.btn.ghost:hover { border-color: var(--cream); }

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
  margin-bottom: 10px;
  display: inline-block;
}

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  border: 1px solid rgba(251, 247, 240, 0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 20px 40px var(--shadow);
}

/* ---------- Footer nav (prev/next) ---------- */
.page-turn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 64px;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Confetti canvas ---------- */
#confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

/* ---------- Utility ---------- */
.center { text-align: center; }
.muted { color: var(--lavender); }
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.9s ease forwards;
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

::selection { background: var(--pink); color: var(--night-3); }

/* Scrollbar flair */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--night-3); }
::-webkit-scrollbar-thumb { background: var(--pink); border-radius: 10px; }