/* theme21 — Envelope Elegance */
:root {
  --ivory: #fffdf8;
  --beige: #f5ede3;
  --gold: #c9a96e;
  --taupe: #a89585;
  --rose: #d4a5a5;
  --brown: #7a6455;
}

html,
body {
  height: 100%;
  margin: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
  overflow-x: hidden;
}
*,
*::before,
*::after {
  box-sizing: inherit;
}

.t21-body {
  font-family: 'Cormorant Garamond', serif;
  background: var(--ivory);
  color: var(--brown);
}

.font-script {
  font-family: 'Great Vibes', cursive;
}
.font-sans-alt {
  font-family: 'Montserrat', sans-serif;
}

/* ── Main hidden ─────────────────── */
.t21-main--hidden {
  display: none;
}

/* ── Opening screen ──────────────── */
.t21-opening-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, #fffdf8 0%, #f5ede3 100%);
  position: relative;
  z-index: 20;
  transition: opacity 0.8s 1.5s, transform 0.8s 1.5s;
  overflow: hidden;
}
.t21-opening-screen.done {
  opacity: 0;
  transform: scale(1.05);
  pointer-events: none;
  position: fixed;
  inset: 0;
}

/* ── Envelope ────────────────────── */
.envelope-wrapper {
  perspective: 1200px;
}
.envelope {
  width: 320px;
  height: 220px;
  position: relative;
  transform-style: preserve-3d;
}
.envelope-body {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f5ede3, #ede5da);
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(122, 100, 85, 0.3);
  position: relative;
  overflow: hidden;
}
.envelope-body::before {
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid var(--gold);
  border-radius: 6px;
  opacity: 0.4;
}
.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, #ede5da, #f5ede3);
  transform-origin: top center;
  transform: rotateX(0deg);
  transition: transform 1.2s cubic-bezier(0.33, 1, 0.68, 1);
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  z-index: 10;
  border-radius: 8px 8px 0 0;
}
.envelope-flap.open {
  transform: rotateX(-180deg);
}
.seal {
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Great Vibes', cursive;
  color: #fff;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(201, 169, 110, 0.5);
  z-index: 11;
  transition: opacity 0.5s 0.3s;
}
.seal.hide {
  opacity: 0;
}
.invitation-card {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  width: 85%;
  height: 75%;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 1.5s cubic-bezier(0.33, 1, 0.68, 1) 0.6s,
    opacity 0.8s 0.6s;
  opacity: 1;
}
.invitation-card.reveal {
  transform: translateX(-50%) translateY(-120%);
}
.t21-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    rgba(201, 169, 110, 0.15) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 1s 0.8s;
  pointer-events: none;
}
.t21-glow.show {
  opacity: 1;
}

/* ── Open button ─────────────────── */
.t21-btn-open {
  transition: all 0.5s;
}
.t21-btn-open:hover {
  background: var(--gold);
  color: #fff;
}

/* ── Particles & petals ──────────── */
.particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: t21FloatUp 8s infinite;
}
@keyframes t21FloatUp {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0.5);
  }
  10% {
    opacity: 0.6;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translateY(-10vh) scale(1);
  }
}
.petal {
  position: fixed;
  width: 12px;
  height: 16px;
  background: var(--rose);
  border-radius: 50% 0 50% 50%;
  opacity: 0;
  animation: t21PetalFall 12s infinite linear;
  pointer-events: none;
  z-index: 1;
}
@keyframes t21PetalFall {
  0% {
    opacity: 0;
    transform: translate(0, -20px) rotate(0deg);
  }
  10% {
    opacity: 0.5;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translate(-40px, 100vh) rotate(360deg);
  }
}

/* ── Shimmer ─────────────────────── */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--gold) 0%,
    #e8d5a3 40%,
    var(--gold) 80%
  );
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: t21Shimmer 3s infinite;
}
@keyframes t21Shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ── Gold line draw ──────────────── */
.gold-line {
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 1.2s cubic-bezier(0.33, 1, 0.68, 1);
}
.gold-line.visible {
  transform: scaleX(1);
}

/* ── Fade-in animations ──────────── */
@keyframes t21FadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.animate-fade-in {
  animation: t21FadeIn 1s ease forwards;
  opacity: 0;
}

/* ── Scroll reveal ───────────────── */
.reveal-section {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s, transform 0.9s cubic-bezier(0.33, 1, 0.68, 1);
}
.reveal-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Section backgrounds ─────────── */
.t21-section-ivory {
  background: var(--ivory);
}
.t21-section-beige {
  background: var(--beige);
}

/* ── Hero ────────────────────────── */
.t21-hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--ivory), var(--beige));
}

/* ── Closing ─────────────────────── */
.t21-closing-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--beige), var(--ivory));
}

/* ── Cards ───────────────────────── */
.t21-card {
  background: #fff;
  box-shadow: 0 8px 40px rgba(168, 149, 133, 0.1);
}

/* ── Timeline dot ────────────────── */
.timeline-dot {
  width: 12px;
  height: 12px;
  background: var(--gold);
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 3px var(--gold);
  z-index: 1;
}

/* ── Gallery placeholder ─────────── */
.t21-gallery-placeholder {
  background: linear-gradient(135deg, var(--beige), #ede5da);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Inputs ──────────────────────── */
.t21-input {
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--beige);
  background: var(--ivory);
  color: var(--brown);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
}
.t21-input:focus {
  border-color: var(--gold);
}
.t21-textarea {
  resize: vertical;
  min-height: 5rem;
}

/* ── Radio pills ─────────────────── */
.t21-radio-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--beige);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--brown);
  cursor: pointer;
}
.t21-radio-pill:has(input:checked) {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}

/* ── Submit button ───────────────── */
.t21-btn-submit {
  background: var(--gold);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}
.t21-btn-submit:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

/* ── Link ────────────────────────── */
.t21-link {
  transition: background 0.3s, color 0.3s;
  text-decoration: none;
}
.t21-link:hover {
  background: var(--gold);
  color: #fff;
}

/* ── Toast ───────────────────────── */
.t21-toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: 200;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  color: #fff;
  background: rgba(122, 100, 85, 0.92);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transition: transform 0.35s ease;
  max-width: min(90vw, 360px);
  text-align: center;
}
.t21-toast.show {
  transform: translateX(-50%) translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}