:root {
  /* Colors */
  --color-bg: hsla(35, 30%, 96%, 0.85);
  --color-bg-alt: hsla(35, 20%, 92%, 0.85);
  --color-text: hsl(0, 0%, 20%);
  --color-text-light: hsl(0, 0%, 40%);
  --color-accent: hsl(37, 45%, 45%); /* Warm Gold / Brown */
  --color-accent-hover: hsl(37, 45%, 35%);
  --color-border: hsla(35, 15%, 85%, 0.6);

  /* Typography */
  --font-body-en: 'Inter', sans-serif;
  --font-heading-en: 'Playfair Display', serif;
  --font-ar: 'Cairo', sans-serif;

  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg) url('1.jpg') no-repeat center center fixed;
  background-size: 100% 100%;
  color: var(--color-text);
  font-family: var(--font-body-en);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* RTL Support */
html[dir="rtl"] body {
  font-family: var(--font-ar);
}

html[dir="rtl"] .hero .couple-names {
  font-family: var(--font-ar);
  font-weight: 700;
}

/* Typography Defaults */
h1, h2, h3 {
  font-family: var(--font-heading-en);
  font-weight: 400;
  color: var(--color-text);
}

html[dir="rtl"] h1, 
html[dir="rtl"] h2, 
html[dir="rtl"] h3 {
  font-family: var(--font-ar);
  font-weight: 600;
}

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

/* Container */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Language Toggle */
.lang-btn {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 100;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.5rem 1rem;
  border-radius: 30px;
  cursor: pointer;
  font-family: var(--font-ar);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: var(--transition);
}

html[dir="rtl"] .lang-btn {
  left: 2rem;
  right: auto;
  font-family: var(--font-body-en);
}

.lang-btn:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

/* Dynamic Card Deck Layout */
:root {
  --car-w: min(85vw, 400px);
  --car-h: min(75vh, 600px);
}

.carousel-wrapper {
  position: relative;
  width: 100vw; height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  overflow: hidden; opacity: 0; transition: opacity 1s ease 1s;
}

.carousel-wrapper.visible { opacity: 1; }

.scene {
  width: var(--car-w); height: var(--car-h);
  perspective: 1500px;
}

.carousel {
  width: 100%; height: 100%;
  position: relative;
  transform-style: preserve-3d;
}

.carousel-face {
  position: absolute;
  width: var(--car-w); height: var(--car-h);
  top: 0; left: 0;
  border-radius: 16px;
  background: rgba(250, 248, 245, 0.15); /* More transparent */
  backdrop-filter: blur(12px); /* Glassmorphism effect */
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  display: flex; flex-direction: column;
  overflow: hidden;
  
  /* Hidden by default */
  opacity: 0;
  pointer-events: none;
  z-index: 1;
  filter: blur(4px) brightness(0.8);
  transition: all 1.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.carousel-face.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 10;
  filter: blur(0px) brightness(1);
}

/* Mixed Transition Effects */
/* 1. Fade & Scale */
.carousel-face.effect-fade { transform: scale(0.8); }
.carousel-face.effect-fade.active { transform: scale(1); }

/* 2. 3D Flip */
.carousel-face.effect-flip { transform: rotateY(-90deg); }
.carousel-face.effect-flip.active { transform: rotateY(0deg); }

/* 3. Slide Up */
.carousel-face.effect-slide-up { transform: translateY(100px); }
.carousel-face.effect-slide-up.active { transform: translateY(0); }

/* 4. Zoom Out */
.carousel-face.effect-zoom { transform: scale(1.3); }
.carousel-face.effect-zoom.active { transform: scale(1); }

/* 5. Slide Side */
.carousel-face.effect-slide-side { transform: translateX(100px); }
.carousel-face.effect-slide-side.active { transform: translateX(0); }

.card-content {
  padding: 2.5rem 2rem;
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  
  /* Content animation */
  opacity: 0;
  transform: translateY(30px) scale(0.95);
  transition: opacity 1.2s cubic-bezier(0.25, 1, 0.5, 1) 0.5s,
              transform 1.2s cubic-bezier(0.25, 1, 0.5, 1) 0.5s;
}

.carousel-face.active .card-content {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.card-content.scrollable {
  justify-content: flex-start;
  overflow-y: auto;
}

.card-content::-webkit-scrollbar { width: 6px; }
.card-content::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 4px; }

/* 5 Faces of Pentagon Carousel */
.face-1 { transform: rotateY(0deg) translateZ(var(--car-tz)); }
.face-2 { transform: rotateY(72deg) translateZ(var(--car-tz)); }
.face-3 { transform: rotateY(144deg) translateZ(var(--car-tz)); }
.face-4 { transform: rotateY(216deg) translateZ(var(--car-tz)); }
.face-5 { transform: rotateY(288deg) translateZ(var(--car-tz)); }

/* Carousel Navigation */
.carousel-nav {
  position: absolute; bottom: 1.5rem;
  display: flex; align-items: center; gap: 2rem;
  background: rgba(255, 255, 255, 0.9);
  padding: 0.5rem 1.5rem;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  z-index: 20;
}

.nav-btn {
  background: transparent; border: none;
  font-size: 1.5rem; color: var(--color-accent);
  cursor: pointer; transition: transform 0.3s;
}

.nav-btn:hover { transform: scale(1.2); }
.nav-btn:active { transform: scale(0.95); }

.page-indicator {
  font-weight: 600; font-size: 1.1rem;
  color: var(--color-text);
}

.hero-content {
  text-align: center;
}

.pre-title {
  font-size: 1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.couple-names {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

.wedding-date {
  font-size: 1.25rem;
  letter-spacing: 1px;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  opacity: 0.8;
  color: var(--color-text);
}

.scroll-text {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  font-weight: 500;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.scroll-line::before {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollLine 2s cubic-bezier(0.77, 0, 0.175, 1) infinite;
}

/* Sections */
.section {
  padding: 6rem 0;
}

.bg-alt {
  background-color: var(--color-bg-alt);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background-color: var(--color-accent);
  margin: 1rem auto 0;
}

/* Countdown */
.countdown {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.time-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255, 255, 255, 0.15);
  padding: 1.5rem;
  border-radius: 12px;
  min-width: 100px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.time-box .number {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.time-box .label {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text);
}

/* Schedule Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(255, 255, 255, 0.3);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.timeline-item:nth-child(even) {
  flex-direction: row-reverse;
}

.timeline-item .time,
.timeline-item .content {
  width: 45%;
}

.timeline-item .time {
  text-align: right;
  font-size: 1.25rem;
  color: var(--color-accent);
  font-weight: 500;
}

.timeline-item:nth-child(even) .time {
  text-align: left;
}

.timeline-item .content {
  background: rgba(255, 255, 255, 0.15);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.timeline-item h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--color-text);
  font-size: 0.95rem;
}

/* Venue */
.venue-address {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.map-container {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

/* RSVP Form */
.rsvp-desc {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--color-text);
}

.rsvp-form {
  background: rgba(255, 255, 255, 0.15);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.04);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(168, 126, 68, 0.1);
}

.submit-btn {
  width: 100%;
  padding: 1rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.submit-btn:hover {
  background: var(--color-accent-hover);
}

.hidden {
  display: none;
}

#form-success {
  margin-top: 2rem;
  text-align: center;
  padding: 1.5rem;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 8px;
}

/* Footer */
.footer {
  text-align: center;
  padding: 3rem;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scrollLine {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* Responsive */
@media (max-width: 768px) {
  .timeline::before {
    left: 20px;
  }
  .timeline-item, .timeline-item:nth-child(even) {
    flex-direction: column;
    align-items: flex-start;
  }
  .timeline-item .time, .timeline-item .content {
    width: 100%;
  }
  .timeline-item .time {
    text-align: left;
    margin-bottom: 0.5rem;
    padding-left: 50px;
  }
  html[dir="rtl"] .timeline::before {
    left: auto;
    right: 20px;
  }
  html[dir="rtl"] .timeline-item .time {
    text-align: right;
    padding-left: 0;
    padding-right: 50px;
  }
  .rsvp-form {
    padding: 2rem 1.5rem;
  }
}

/* Cover (Envelope) Styles */
body.no-scroll {
  overflow: hidden;
}

.cover {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--color-bg) url('bg.jpg') no-repeat center center;
  background-size: 100% 100%;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1), opacity 1s ease;
}

.cover.open {
  transform: translateY(-100vh);
  opacity: 0;
  pointer-events: none;
}

.envelope {
  position: absolute;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  perspective: 2000px;
}

.env-back {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--color-bg) url('card.jpg') no-repeat center center fixed;
  background-size: 100% 100%;
}

.env-flap {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--color-bg) url('card.jpg') no-repeat center center fixed;
  background-size: 100% 100%;
  transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease 0.6s;
}

/* Modern Geometric Envelope Cuts */
.env-left {
  clip-path: polygon(0 0, 48% 50%, 0 100%);
  transform-origin: left;
  z-index: 4;
  filter: brightness(0.85);
}

.env-right {
  clip-path: polygon(100% 0, 52% 50%, 100% 100%);
  transform-origin: right;
  z-index: 4;
  filter: brightness(0.85);
}

.env-bottom {
  clip-path: polygon(0 100%, 100% 100%, 50% 48%);
  transform-origin: bottom;
  z-index: 5;
  filter: brightness(0.92);
}

.env-top {
  clip-path: polygon(0 0, 100% 0, 50% 55%);
  transform-origin: top;
  z-index: 6;
  filter: brightness(1.0);
  /* Optional drop shadow effect if supported */
  drop-shadow: 0 10px 20px rgba(0,0,0,0.5);
}

.env-left.open { transform: rotateY(-180deg); opacity: 0; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease 0.6s; }
.env-right.open { transform: rotateY(180deg); opacity: 0; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease 0.6s; }
.env-bottom.open { transform: rotateX(180deg); opacity: 0; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease 0.6s; }
.env-top.open { transform: rotateX(-180deg); opacity: 0; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.5s ease 0.6s; }

.box-overlay-content {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.box-overlay-content.hide {
  opacity: 0;
  pointer-events: none;
}

.cover-names {
  font-size: clamp(3.5rem, 8vw, 6rem);
  color: var(--color-accent);
  margin-bottom: 2rem;
  text-align: center;
  text-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.open-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: transparent;
  color: var(--color-accent);
  border: none;
  cursor: pointer;
  pointer-events: auto;
}

.monogram-svg {
  transition: transform 0.5s ease;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spinning-text {
  transform-origin: 80px 80px;
  animation: spin 18s linear infinite;
}

.open-btn:hover .monogram-svg {
  transform: scale(1.1);
  filter: drop-shadow(0 6px 12px rgba(168, 126, 68, 0.2));
}

.open-btn:hover .spinning-text {
  animation-duration: 8s;
}

.open-text {
  font-size: 0.9rem;
  letter-spacing: 2px;
  opacity: 0.8;
}