/* BIRTHDAY INVITATION CSS - Rose Gold Glamour */

:root {
    --c-bg-deep-purple: #1a0f1a;
    --c-bg-dark-plum: #2a1b2a;
    --c-rose-gold: #b76e79;
    --c-rose-gold-light: #e0bfb8;
    --c-champagne: #fad6a5;
    --c-white: #ffffff;
    --c-gray-light: #dcdcdc;
    --c-border: rgba(183, 110, 121, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: #0d070d; /* Desktop background outside frame */
    font-family: 'Montserrat', sans-serif;
    color: var(--c-white);
    overflow-x: hidden;
}

/* Typography Utilities */
.font-montserrat { font-family: 'Montserrat', sans-serif; }
.font-vibes { font-family: 'Great Vibes', cursive; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.tracking-wide { letter-spacing: 2px; text-transform: uppercase; }

.text-white { color: var(--c-white); }
.text-rose-gold { color: var(--c-rose-gold); 
text-shadow: 0px 0px 8px rgba(0, 0, 0, 0.8);}
.text-champagne { color: var(--c-champagne); }
.text-gray-light { color: var(--c-gray-light); }
.text-center { text-align: center; }
.text-sm { font-size: 0.85rem; }
.text-lg { font-size: 1.15rem; }
.text-2xl { font-size: 2.5rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }
.w-100 { width: 100%; }

/* Mobile Frame for Desktop */
#mobile-frame {
    width: 100%;
    max-width: 480px;
    min-height: 100vh;
    margin: 0 auto;
    background-color: var(--c-bg-deep-purple);
    position: relative;
    box-shadow: 0 0 50px rgba(183, 110, 121, 0.15); /* Soft rose glow on desktop */
    overflow: hidden;
}

/* Cinematic Sections */
.party-section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    overflow: hidden;
}

/* Add a delicate champagne border inside each scene */
.party-section::after {
    content: '';
    position: absolute;
    top: 10px; left: 10px; width: calc(100% - 20px); height: calc(100% - 20px);
    pointer-events: none;
    z-index: 100;
    border: 1px solid rgba(250, 214, 165, 0.15);
}

.content {
    position: relative;
    z-index: 10;
    max-width: 100%;
}



.flex-col-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Backgrounds & Overlays */
.bg-deep-purple { background-color: var(--c-bg-deep-purple); }
.bg-dark-plum { background-color: var(--c-bg-dark-plum); }

.hero-bg {
    background-image: url('assets/imgbday/bd-hero-bg.jpg');
    background-size: cover;
    background-position: center;
}

.venue-bg {
    background-image: url('assets/imgbday/bd-venue-bg.jpg');
    background-size: cover;
    background-position: center;
}

.details-bg {
    background-image: url('assets/imgbday/bd-detail-bg.jpg');
    background-size: cover;
    background-position: center;
}

.memories-bg {
    background-image: url('assets/imgbday/bd-memories-bg.jpg');
    background-size: cover;
    background-position: center;
}

.vibe-bg {
    background-image: url('assets/imgbday/bd-vibe-bg.jpg');
    background-size: cover;
    background-position: center;
}

.rsvp-bg {
    background-image: url('assets/imgbday/bd-rsvp-bg.jpg');
    background-size: cover;
    background-position: center;
}

.glass-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(26, 15, 26, 0.4), rgba(42, 27, 42, 0.5));
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--c-border);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 15px 35px rgba(0,0,0,0.4);
}
.padding-lg { padding: 3rem 2rem; }

/* Components */
.title {
    font-size: 5.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    margin-top: 1rem;
}

.drop-shadow-glow {
    text-shadow: 0 0 20px rgba(183, 110, 121, 0.8), 2px 4px 10px rgba(0,0,0,0.6);
}

.subtitle {
    font-size: 1rem;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-shadow: 0px 0px 8px rgba(0,0,0, 0.8);
}

.divider {
    width: 50px;
    height: 2px;
    margin-top: 1rem;
}
.mx-auto { margin-left: auto; margin-right: auto; }
.bg-rose-gold { background-color: var(--c-rose-gold); }
.bg-champagne { background-color: var(--c-champagne); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 35px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.btn-rose {
    background: linear-gradient(45deg, var(--c-rose-gold), #d18a95);
    color: var(--c-white);
    box-shadow: 0 4px 15px rgba(183, 110, 121, 0.4);
}

.btn-rose:hover {
    box-shadow: 0 6px 20px rgba(183, 110, 121, 0.6);
    transform: translateY(-2px);
}

.btn-outline-rose {
    background-color: transparent;
    color: var(--c-rose-gold-light);
    border: 1px solid var(--c-rose-gold);
}

.btn-outline-rose:hover {
    background-color: var(--c-rose-gold);
    color: var(--c-white);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--c-champagne);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.8;
}
.mouse {
    width: 22px;
    height: 34px;
    border: 2px solid var(--c-champagne);
    border-radius: 15px;
    margin-top: 10px;
    position: relative;
}
.mouse::before {
    content: '';
    position: absolute;
    top: 5px; left: 50%;
    transform: translateX(-50%);
    width: 4px; height: 4px;
    background: var(--c-champagne);
    border-radius: 50%;
    animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
    0% { top: 5px; opacity: 1; }
    100% { top: 15px; opacity: 0; }
}

/* Polaroid Gallery */
.polaroid-stack {
    position: relative;
    height: 350px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.polaroid {
    background: #fff;
    padding: 10px 10px 20px 10px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
    position: absolute;
    transition: transform 0.5s ease;
    width: 200px;
}
.polaroid img {
    width: 100%;
    height: auto;
    display: block;
    filter: sepia(0.2) contrast(1.1);
}
.polaroid-caption {
    color: #333;
    text-align: center;
    font-size: 1.8rem;
    margin-top: 10px;
}
.p-left {
    transform: rotate(-10deg) translateX(-40px) translateY(20px);
    z-index: 1;
}
.p-right {
    transform: rotate(15deg) translateX(40px) translateY(-10px);
    z-index: 2;
}
.p-center {
    transform: rotate(2deg);
    z-index: 3;
}
.polaroid-stack:hover .p-left { transform: rotate(-15deg) translateX(-60px) translateY(10px); }
.polaroid-stack:hover .p-right { transform: rotate(20deg) translateX(60px) translateY(-20px); }
.polaroid-stack:hover .p-center { transform: rotate(0deg) scale(1.05); }

/* Form Styles */
.glam-form {
    width: 100%;
    text-align: left;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--c-champagne);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.form-group input, .form-group select {
    width: 100%;
    padding: 15px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(183, 110, 121, 0.3);
    color: var(--c-white);
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--c-rose-gold);
    background: rgba(255,255,255,0.08);
}
.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23fad6a5%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem top 50%;
    background-size: 0.65rem auto;
}
.form-group select option {
    background-color: var(--c-bg-deep-purple);
    color: var(--c-white);
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1); /* Bouncy effect */
}

.fade-up {
    transform: translateY(40px);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }

/* Floating Sparkles */
#sparkles-container {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 5;
}
.sparkle {
    position: absolute;
    bottom: -20px;
    background-color: var(--c-champagne);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--c-champagne), 0 0 20px var(--c-champagne);
    opacity: 0;
    animation: floatUp 4s ease-in infinite;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) scale(0);
        opacity: 0;
    }
    20% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}