:root {
  --ink: #071326;
  --midnight: #0b2240;
  --gold: #ddb45b;
  --gold-bright: #f9df94;
  --cream: #fff8e9;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
  font-family: Georgia, "Times New Roman", serif;
}

button { font: inherit; }

.experience {
  min-height: 100svh;
  position: relative;
  isolation: isolate;
  background: radial-gradient(circle at 25% 20%, #1c4772 0, var(--midnight) 37%, var(--ink) 100%);
}

.ambient { position: fixed; border-radius: 999px; filter: blur(1px); opacity: .32; z-index: -1; }
.ambient-one { width: 38vw; height: 38vw; min-width: 360px; min-height: 360px; background: #c59839; top: -25vw; right: -12vw; }
.ambient-two { width: 28vw; height: 28vw; min-width: 270px; min-height: 270px; border: 1px solid #d9ae59; bottom: -16vw; left: -8vw; }

.welcome, .slideshow { position: absolute; inset: 0; }

.welcome {
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: opacity .8s ease, visibility .8s ease;
}

.welcome.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.welcome-photo {
  position: absolute;
  inset: 0;
  background-image: url("50F0718F-6E01-456E-9019-3F96BA474A2B.png");
  background-repeat: no-repeat;
  background-position: 93% 70%;
  background-size: min(72vw, 880px);
  opacity: .65;
  filter: saturate(.92) contrast(1.06);
}

.welcome-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5, 16, 32, .98) 0%, rgba(5, 16, 32, .92) 37%, rgba(5, 16, 32, .42) 100%), linear-gradient(0deg, rgba(5, 16, 32, .55), transparent 35%); }

.welcome-content { width: min(92vw, 620px); position: relative; padding: 42px 24px; text-align: center; animation: rise-in 1.1s cubic-bezier(.2,.8,.2,1) both; }

.birthday-mark { width: min(200px, 42vw); height: auto; margin: 0 auto 4px; display: block; filter: drop-shadow(0 10px 24px rgba(0,0,0,.35)); }
.eyebrow { margin: 8px 0 12px; color: var(--gold-bright); text-transform: uppercase; letter-spacing: .23em; font: 600 11px/1.4 Arial, sans-serif; }
h1 { margin: 0; font-size: clamp(52px, 10vw, 94px); line-height: .78; letter-spacing: -.07em; text-shadow: 0 4px 18px rgba(0,0,0,.32); }
h1 span { color: var(--gold); font-size: .58em; letter-spacing: -.04em; font-style: italic; }
.welcome-copy { max-width: 380px; margin: 28px auto 28px; color: rgba(255,248,233,.83); font-size: clamp(16px, 2vw, 20px); line-height: 1.5; }

.start-button {
  border: 1px solid rgba(255,238,184,.88);
  border-radius: 99px;
  padding: 15px 27px 16px 22px;
  color: #16253b;
  background: linear-gradient(135deg, #fff0bd, #cd9634);
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.7);
  font: 700 15px/1 Arial, sans-serif;
  transition: transform .2s ease, box-shadow .2s ease;
}
.start-button:hover, .start-button:focus-visible { transform: translateY(-2px); box-shadow: 0 13px 32px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.7); }
.button-icon { padding-right: 8px; font-size: 12px; }
.sound-note { margin: 13px 0 0; color: rgba(255,248,233,.58); font: 11px/1 Arial,sans-serif; letter-spacing: .08em; text-transform: uppercase; }

.slideshow { opacity: 0; visibility: hidden; background: #020912; transition: opacity .8s ease, visibility .8s ease; }
.slideshow.is-active { opacity: 1; visibility: visible; }
.slide-frame, .slide-image, .image-wash { position: absolute; inset: 0; width: 100%; height: 100%; }
.slide-frame { overflow: hidden; background: #071326; }
.slide-image { object-fit: contain; opacity: 0; transform: scale(1.07); transition: opacity 1.25s ease, transform 7s ease; }
.slide-image.is-active { opacity: 1; transform: scale(1.005); }
.image-wash { background: linear-gradient(180deg, rgba(2,9,18,.5), transparent 28%, transparent 65%, rgba(2,9,18,.75)); pointer-events: none; }

.slideshow-topbar { position: absolute; z-index: 2; top: 0; right: 0; left: 0; padding: 22px clamp(18px, 4vw, 55px); display: flex; justify-content: space-between; align-items: center; }
.mini-mark { font: 700 14px/1 Arial,sans-serif; letter-spacing: .14em; text-shadow: 0 2px 10px #000; }
.mini-mark span { color: var(--gold-bright); font: italic 25px/.6 Georgia,serif; letter-spacing: -.08em; }
.sound-button { width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(255,255,255,.44); background: rgba(3,13,26,.35); backdrop-filter: blur(8px); color: white; font-size: 18px; cursor: pointer; }

.slideshow-caption { position: absolute; z-index: 2; left: clamp(18px, 4vw, 55px); right: clamp(18px, 4vw, 55px); bottom: 25px; text-shadow: 0 2px 12px #000; }
.slideshow-caption p { margin: 0 0 12px; font-size: clamp(16px, 2.3vw, 25px); font-style: italic; }
.progress-track { height: 2px; background: rgba(255,255,255,.32); overflow: hidden; }
.progress-value { width: 0%; height: 100%; background: linear-gradient(90deg, var(--gold), var(--gold-bright)); transition: width .6s ease; }
#counter { display: block; margin-top: 10px; color: rgba(255,255,255,.75); font: 11px/1 Arial,sans-serif; letter-spacing: .15em; }

.nav { position: absolute; z-index: 3; top: 50%; width: 46px; height: 70px; margin-top: -35px; border: 0; background: linear-gradient(90deg, rgba(0,0,0,.3), transparent); color: white; cursor: pointer; font: 50px/.7 Arial, sans-serif; opacity: 0; transition: opacity .2s ease; }
.nav-previous { left: 0; }.nav-next { right: 0; background: linear-gradient(-90deg, rgba(0,0,0,.3), transparent); }
.slideshow:hover .nav, .nav:focus-visible { opacity: 1; }

@keyframes rise-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 640px) {
  .welcome-photo { background-size: 110vw; background-position: 89% 74%; opacity: .5; }
  .welcome-shade { background: linear-gradient(180deg, rgba(5,16,32,.88), rgba(5,16,32,.72) 60%, rgba(5,16,32,.93)); }
  .birthday-mark { width: min(165px, 40vw); }
  .nav { opacity: .65; width: 38px; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; } }