/* ============================================
   WEDDING INVITATION - PURE CSS
   Color Scheme: Rose Pink (#E94B7E), Gold (#F4D03F), Blush (#F5D5E3)
   ============================================ */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(to bottom, #FAFAF8, #F5D5E3);
    color: #2D1B2E;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=Poppins:wght@300;400;500;600;700&display=swap');

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

.couple-name {
    font-size: clamp(2.5rem, 8vw, 4rem);
    color: #E94B7E;
    text-align: center;
    letter-spacing: 2px;
    animation: fadeInScale 1s ease-out forwards;
}

.section-title {
    font-size: clamp(2rem, 6vw, 3rem);
    color: #E94B7E;
    text-align: center;
    letter-spacing: 1px;
}

/* ============================================
   SCROLL PROGRESS BAR
   ============================================ */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(to right, #E94B7E, #F4D03F, #E94B7E);
    width: 0%;
    z-index: 1000;
    box-shadow: 0 0 10px rgba(233, 75, 126, 0.5);
}

/* ============================================
   FLOATING RIBBON
   ============================================ */

.floating-ribbon {
    position: fixed;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    pointer-events: none;
    animation: floatRibbon 4s ease-in-out infinite;
}

.ribbon-content {
    background: linear-gradient(135deg, #E94B7E, #D4346B);
    color: white;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    box-shadow: 0 10px 30px rgba(233, 75, 126, 0.4);
    position: relative;
}

.ribbon-content::before,
.ribbon-content::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 30px;
    transform: translateY(-50%) skewX(-20deg);
    background: linear-gradient(to right, #D4346B, #E94B7E);
}

.ribbon-content::before {
    left: -15px;
}

.ribbon-content::after {
    right: -15px;
}

@keyframes floatRibbon {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(0deg); }
    50% { transform: translateX(-50%) translateY(-10px) rotate(2deg); }
}

/* ============================================
   PARTICLES
   ============================================ */

.particles-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 10;
}

.particle {
    position: absolute;
    pointer-events: none;
}

.particle-sparkle {
    width: 8px;
    height: 8px;
    background: radial-gradient(circle, #F4D03F, #E94B7E);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(244, 208, 63, 0.8);
}

/* ============================================
   BALLOONS
   ============================================ */

.balloons-container {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.balloon {
    position: absolute;
    width: 40px;
    height: 50px;
    border-radius: 50% 50% 50% 0;
    opacity: 0.8;
    animation: float 6s ease-in infinite;
}

.balloon::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 30px;
    background: rgba(0, 0, 0, 0.1);
}

.balloon-pink { background: linear-gradient(135deg, #E94B7E, #F5D5E3); }
.balloon-gold { background: linear-gradient(135deg, #F4D03F, #E8A000); }
.balloon-rose { background: linear-gradient(135deg, #D4346B, #E94B7E); }

@keyframes float {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: url('https://d2xsxph8kpxj0f.cloudfront.net/310519663460150372/V8mZk4wvgSWf5iiMsaeFCF/hero-background-U3pkgZtya4yujF7FXAjxbq.webp');
    background-size: cover;
    background-position: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(250, 250, 248, 0.2), rgba(245, 213, 227, 0.4));
    z-index: 1;
}

.envelope-wrapper {
    position: relative;
    z-index: 10;
}

/* ============================================
   ENVELOPE
   ============================================ */

.envelope {
    width: clamp(200px, 80vw, 400px);
    height: clamp(150px, 60vw, 300px);
    position: relative;
    cursor: pointer;
    perspective: 1000px;
}

.envelope-body {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.3s ease;
}

.envelope-front {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #E94B7E, #D4346B);
    border-radius: 8px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(233, 75, 126, 0.3);
    transition: all 0.3s ease;
}

.envelope-front:hover {
    box-shadow: 0 30px 70px rgba(233, 75, 126, 0.5);
    transform: scale(1.02);
}

.envelope-border-top,
.envelope-border-bottom,
.envelope-border-left,
.envelope-border-right {
    position: absolute;
    background: linear-gradient(90deg, transparent, #F4D03F, transparent);
}

.envelope-border-top,
.envelope-border-bottom {
    height: 2px;
    width: 100%;
}

.envelope-border-top { top: 10px; }
.envelope-border-bottom { bottom: 10px; }

.envelope-border-left,
.envelope-border-right {
    width: 2px;
    height: 100%;
}

.envelope-border-left { left: 10px; }
.envelope-border-right { right: 10px; }

.wax-seal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
}

.seal-circle {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 30% 30%, #F4D03F, #E8A000);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(244, 208, 63, 0.5), inset -2px -2px 5px rgba(0, 0, 0, 0.2);
    animation: sealPulse 2s ease-in-out infinite;
}

.seal-heart {
    font-size: 2.5rem;
    animation: heartBeat 1.5s ease-in-out infinite;
}

@keyframes sealPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.envelope-text {
    text-align: center;
    color: white;
    z-index: 3;
    position: relative;
}

.envelope-label {
    font-size: clamp(0.9rem, 3vw, 1.2rem);
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.envelope-subtitle {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 700;
    letter-spacing: 2px;
}

.click-hint {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    animation: bounce 2s ease-in-out infinite;
    z-index: 3;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

.envelope-flap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to bottom, #D4346B, #E94B7E);
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    transform-origin: top;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 10px 30px rgba(233, 75, 126, 0.3);
}

.flap-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), transparent);
    clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.envelope.opened .envelope-flap {
    transform: rotateX(-170deg);
}

.envelope-back {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #F5D5E3, #FFF);
    border-radius: 8px;
    z-index: -1;
}

/* ============================================
   SCROLL INDICATOR
   ============================================ */

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: #E94B7E;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    animation: fadeInOut 3s ease-in-out infinite;
    z-index: 10;
}

.scroll-arrow {
    font-size: 1.5rem;
    animation: slideDown 1s ease-in-out infinite;
    margin-top: 5px;
}

@keyframes slideDown {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.5; }
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

/* ============================================
   WEDDING SECTIONS
   ============================================ */

.wedding-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    position: relative;
    overflow: hidden;
}

.section-couple {
    background: linear-gradient(135deg, #FAFAF8 0%, #F5D5E3 100%);
}

.section-date {
    background: linear-gradient(135deg, #F5D5E3 0%, #FFF 100%);
}

.section-location {
    background: linear-gradient(135deg, #FFF 0%, #F5D5E3 100%);
}

.section-celebration {
    background: linear-gradient(135deg, #F5D5E3 0%, #FAFAF8 100%);
}

.section-content {
    width: 100%;
    max-width: 600px;
    position: relative;
    z-index: 2;
}

/* ============================================
   ORNATE FRAME
   ============================================ */

.ornate-frame {
    position: relative;
    padding: 40px;
    border: 4px solid #F4D03F;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(244, 208, 63, 0.1), rgba(233, 75, 126, 0.05));
    box-shadow: 0 20px 60px rgba(233, 75, 126, 0.15);
    animation: frameSlideIn 0.8s ease-out;
    transition: all 0.3s ease;
}

.ornate-frame:hover {
    transform: scale(1.02);
    box-shadow: 0 30px 80px rgba(233, 75, 126, 0.25);
}

.frame-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #F4D03F;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(244, 208, 63, 0.6);
}

.frame-corner-tl { top: -10px; left: -10px; }
.frame-corner-tr { top: -10px; right: -10px; }
.frame-corner-bl { bottom: -10px; left: -10px; }
.frame-corner-br { bottom: -10px; right: -10px; }

.frame-inner {
    position: relative;
    z-index: 2;
}

@keyframes frameSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8) rotate(-5deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

/* ============================================
   DIVIDERS
   ============================================ */

.divider-ornate {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #E94B7E, transparent);
    margin: 20px auto;
    position: relative;
}

.divider-ornate::before,
.divider-ornate::after {
    content: '✦';
    position: absolute;
    color: #E94B7E;
    font-size: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
}

.divider-ornate::before { left: -15px; }
.divider-ornate::after { right: -15px; }

.divider-floral {
    width: 80px;
    height: 30px;
    margin: 20px auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.divider-floral::before {
    content: '🌹';
    font-size: 1.5rem;
    animation: floatEmoji 3s ease-in-out infinite;
}

@keyframes floatEmoji {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ============================================
   TEXT STYLES
   ============================================ */

.couple-and {
    font-size: 2rem;
    color: #E94B7E;
    margin: 10px 0;
    font-weight: 300;
}

.date-text {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    color: #E94B7E;
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    margin: 20px 0;
}

.date-day {
    font-size: 1.2rem;
    color: #D4346B;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.location-text {
    font-size: clamp(1.5rem, 4vw, 2rem);
    color: #E94B7E;
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    margin: 20px 0;
}

.venue-text {
    font-size: 1rem;
    color: #D4346B;
    text-align: center;
    letter-spacing: 1px;
}

.celebration-text {
    font-size: 1.1rem;
    color: #2D1B2E;
    text-align: center;
    line-height: 1.8;
    margin: 20px 0;
}

.celebration-subtitle {
    font-size: 1rem;
    color: #E94B7E;
    text-align: center;
    font-style: italic;
    margin-top: 20px;
}

/* ============================================
   FLOATING ELEMENTS
   ============================================ */

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.floating-emoji {
    position: absolute;
    font-size: 2rem;
    animation: floatUp 8s ease-in-out infinite;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-200px) translateX(50px);
        opacity: 0;
    }
}

/* ============================================
   CONFETTI
   ============================================ */

.confetti-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 5;
}

.confetti {
    position: absolute;
    pointer-events: none;
}

.confetti-piece {
    width: 10px;
    height: 10px;
    background: #E94B7E;
    animation: confettiFall 3s ease-out forwards;
}

@keyframes confettiFall {
    to {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #E94B7E, #D4346B);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 10px 30px rgba(233, 75, 126, 0.4);
    transition: all 0.3s ease;
}

.back-to-top:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 40px rgba(233, 75, 126, 0.6);
}

.back-to-top.show {
    display: flex;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    .ornate-frame {
        padding: 30px;
        border-width: 3px;
    }

    .frame-corner {
        width: 15px;
        height: 15px;
    }

    .frame-corner-tl { top: -7px; left: -7px; }
    .frame-corner-tr { top: -7px; right: -7px; }
    .frame-corner-bl { bottom: -7px; left: -7px; }
    .frame-corner-br { bottom: -7px; right: -7px; }

    .envelope {
        width: clamp(150px, 90vw, 300px);
        height: clamp(120px, 70vw, 225px);
    }

    .seal-circle {
        width: 60px;
        height: 60px;
    }

    .seal-heart {
        font-size: 1.8rem;
    }

    .wedding-section {
        padding: 40px 15px;
    }

    .floating-ribbon {
        top: 20px;
    }

    .ribbon-content {
        padding: 10px 24px;
        font-size: 0.8rem;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .ornate-frame {
        padding: 20px;
        border-width: 2px;
    }

    .frame-corner {
        width: 12px;
        height: 12px;
    }

    .frame-corner-tl { top: -6px; left: -6px; }
    .frame-corner-tr { top: -6px; right: -6px; }
    .frame-corner-bl { bottom: -6px; left: -6px; }
    .frame-corner-br { bottom: -6px; right: -6px; }

    .envelope {
        width: clamp(120px, 85vw, 250px);
        height: clamp(100px, 65vw, 190px);
    }

    .seal-circle {
        width: 50px;
        height: 50px;
    }

    .seal-heart {
        font-size: 1.5rem;
    }

    .envelope-label {
        font-size: 0.8rem;
    }

    .envelope-subtitle {
        font-size: 1.2rem;
    }

    .click-hint {
        font-size: 0.75rem;
    }

    .wedding-section {
        padding: 30px 10px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .couple-name {
        font-size: 1.8rem;
    }

    .floating-ribbon {
        top: 15px;
    }

    .ribbon-content {
        padding: 8px 16px;
        font-size: 0.7rem;
    }

    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Utility animations */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}