/* ===================================
   PREMIUM WEDDING INVITATION CSS
   Gold/Glassmorphism Theme
   =================================== */

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

/* Performance Optimizations for AOS */
[data-aos] {
    will-change: transform, opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
}

[data-aos^="fade"] {
    transition-property: transform, opacity !important;
}

:root {
    /* Gold & Premium Colors */
    --color-gold: #d4af37;
    --color-gold-light: #f4e4c1;
    --color-gold-dark: #b8941f;

    /* Neutrals */
    --color-white: #ffffff;
    --color-black: #2c2c2c;
    --color-gray: #666666;
    --color-light-gray: #f8f9fa;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.3);

    /* Fonts */
    --font-script: 'Great Vibes', cursive;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Poppins', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Effects */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    --transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
    overscroll-behavior-y: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-black);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    background-color: var(--color-white);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8)),
        url('wedding-bg.png');
    background-size: cover;
    background-position: center;
    z-index: -1;
    transform: translateZ(0);
    will-change: transform;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   COVER PAGE
   =================================== */
.cover-page {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
        url('wedding-bg.png');
    background-size: cover;
    background-position: center;
    animation: gradientShift 10s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: transform 0.8s ease, opacity 0.8s ease;
    overflow: hidden;
}

.cover-page.hide {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.cover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
}

.cover-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    animation: fadeInUp 1s ease;
}

.cover-label {
    font-family: var(--font-script);
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(212, 175, 55, 0.5);
}

.cover-names {
    font-family: var(--font-serif);
    text-align: center;
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 2rem;
    letter-spacing: 3px;
    text-shadow: 0 4px 20px rgba(212, 175, 55, 0.6);
}

.cover-guest {
    margin-bottom: 3rem;
}

.guest-label {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.guest-name-cover {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gold-light);
}

.btn-open-invitation {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-white);
    border: 2px solid var(--color-gold-light);
    padding: 1rem 3rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
}

.btn-open-invitation:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
}

.btn-open-invitation i {
    font-size: 1.3rem;
}

.cover-ornament {
    position: absolute;
    width: 150px;
    height: 150px;
    border: 2px solid var(--color-gold);
    opacity: 0.2;
}

.cover-ornament.top-left {
    top: 50px;
    left: 50px;
    border-right: none;
    border-bottom: none;
}

.cover-ornament.top-right {
    top: 50px;
    right: 50px;
    border-left: none;
    border-bottom: none;
}

.cover-ornament.bottom-left {
    bottom: 50px;
    left: 50px;
    border-right: none;
    border-top: none;
}

.cover-ornament.bottom-right {
    bottom: 50px;
    right: 50px;
    border-left: none;
    border-top: none;
}

/* ===================================
   MAIN CONTENT
   =================================== */
.main-content {
    opacity: 1;
}

.main-content:not(.hidden) {
    animation: fadeInMain 0.8s ease forwards;
}

.main-content.hidden {
    display: none;
    opacity: 0;
    pointer-events: none;
}

@keyframes fadeInMain {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   MUSIC TOGGLE
   =================================== */
.music-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-white);
    border: 2px solid var(--color-gold-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: var(--shadow-md);
    z-index: 10000;
    transition: var(--transition);
}

.music-toggle:hover {
    transform: scale(1.1);
}

.music-toggle.playing {
    animation: rotate 3s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

/* ===================================
   GLASS CARD
   =================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .glass-card {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

/* ===================================
   SECTIONS
   =================================== */
section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    font-family: var(--font-script);
    font-size: 3.5rem;
    color: var(--color-gold);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
}

.section-description {
    text-align: center;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

/* ===================================
   WELCOME SECTION
   =================================== */
.welcome-section {
    padding-top: calc(var(--spacing-xl) + 50px);
}

.greeting {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.verse-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    text-align: center;
    font-style: italic;
}

.verse-source {
    text-align: center;
    color: var(--color-gold);
    font-weight: 600;
    font-size: 1.1rem;
}

/* ===================================
   COUPLE SECTION
   =================================== */
.couple-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.couple-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    will-change: transform;
}

.couple-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .couple-card {
        backdrop-filter: blur(5px);
    }
}

.photo-frame {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    border: 5px solid var(--color-gold);
    padding: 5px;
    box-shadow: var(--shadow-gold);
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.photo-placeholder.groom::before {
    content: '🤵';
}

.photo-placeholder.bride::before {
    content: '👰';
}

.couple-name {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.couple-fullname {
    font-size: 1.2rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.couple-parents {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gold);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--color-gold-dark);
    transform: scale(1.05);
}

.couple-divider {
    font-family: var(--font-serif);
    font-size: 4rem;
    color: var(--color-gold);
    text-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
}

/* ===================================
   COUNTDOWN SECTION
   =================================== */
.countdown-section {
    background: linear-gradient(135deg, var(--color-gold-light) 0%, #fff 100%);
    color: var(--color-black);
}

.countdown-section .section-title {
    color: var(--color-gold-dark);
}

.countdown-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.countdown-box {
    background: var(--color-white);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-gold-light);
    border-radius: 15px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.countdown-box:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.countdown-value {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.countdown-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.9;
}

/* ===================================
   EVENT SECTION
   =================================== */
.event-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto var(--spacing-md);
}

.event-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .event-card {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.event-icon {
    font-size: 3rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
}

.event-name {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-sm);
}

.event-date {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.event-day {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.event-time {
    font-size: 1.1rem;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.event-location {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
}

.location-address {
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.event-map {
    margin: var(--spacing-lg) auto;
    max-width: 1000px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: 10px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transform: translateZ(0);
}

.event-map iframe {
    border-radius: 15px;
    display: block;
    width: 100%;
}

.map-actions {
    padding: var(--spacing-md) 0;
    display: flex;
    justify-content: center;
}

.map-actions .btn-secondary {
    padding: 0.8rem 2rem;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .event-map {
        margin: var(--spacing-md) 0;
        border-radius: 20px;
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }

    .event-map iframe {
        height: 300px;
    }
}

.calendar-save {
    text-align: center;
}

/* ===================================
   TIMELINE/STORY SECTION
   =================================== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-gold), var(--color-gold-light));
}

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.timeline-item:nth-child(even) {
    direction: rtl;
}

.timeline-item:nth-child(even) .timeline-content {
    direction: ltr;
}

.timeline-date {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    display: inline-block;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-gold);
}

.timeline-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .timeline-content {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.timeline-photo {
    width: 100%;
    height: 200px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.timeline-photo .photo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.timeline-photo .photo-placeholder::before {
    content: '📸';
}

.timeline-content h4 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===================================
   GALLERY SECTION
   =================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    padding-top: 100%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.gallery-item .photo-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 50%, var(--color-gold-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.gallery-item .photo-placeholder::before {
    content: '📷';
}

/* ===================================
   VIDEO SECTION
   =================================== */
.video-container {
    max-width: 800px;
    margin: 0 auto;
}

.video-placeholder {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 100px var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .video-placeholder {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.video-placeholder i {
    font-size: 5rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
}

.video-placeholder p {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: 0.5rem;
}

.video-placeholder small {
    color: var(--color-gray);
    opacity: 0.7;
}

/* ===================================
   GIFT SECTION
   =================================== */
.gift-description {
    text-align: center;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
}

.gift-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.bank-card {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-white);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-gold);
    transition: var(--transition);
}

.bank-card:hover {
    transform: translateY(-5px) scale(1.02);
}

.bank-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    font-weight: 700;
}

.bank-logo i {
    font-size: 2rem;
}

.account-info {
    margin-bottom: var(--spacing-md);
}

.account-number {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
    font-family: monospace;
}

.account-name {
    font-size: 1.1rem;
    opacity: 0.9;
}

.btn-copy {
    background: var(--color-gold);
    color: var(--color-white);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn-copy:hover {
    background: var(--color-gold-dark);
    transform: scale(1.05);
}

/* ===================================
   RSVP SECTION
   =================================== */
.rsvp-container {
    max-width: 800px;
    margin: 0 auto;
}

.rsvp-form {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transform: translateZ(0);
    text-align: center;
}

.rsvp-form .btn-primary {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    width: 80%;
    max-width: 300px;
}

@media (max-width: 768px) {
    .rsvp-form {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 1px solid var(--color-gold-light);
    border-radius: 12px;
    font-family: var(--font-sans);
    font-size: 1rem;
    background: var(--color-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.wishes-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .wishes-container {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.wishes-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--color-gold);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.wishes-list {
    max-height: 500px;
    overflow-y: auto;
}

.wish-item {
    background: var(--color-white);
    border-left: 4px solid var(--color-gold);
    border-radius: 10px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.wish-item:hover {
    transform: translateX(5px);
}

.wish-animate {
    animation: slideInUp 0.6s ease forwards;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.wish-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.wish-name {
    font-weight: 600;
    color: var(--color-gold);
}

.wish-attendance {
    padding: 0.3rem 1rem;
    border-radius: 20px;
    background: var(--color-gold);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 600;
}

.wish-message {
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===================================
   CLOSING SECTION
   =================================== */
.closing-section {
    padding-bottom: 100px;
}

.closing-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    max-width: 800px;
    margin: 0 auto;
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .closing-content {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
}

.closing-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.closing-greeting {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.closing-signature {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.closing-names {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-top: var(--spacing-md);
}

/* ===================================
   BUTTONS
   =================================== */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-gold);
    border: 2px solid var(--color-gold);
}

.btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-white);
}

.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    filter: grayscale(0.5);
    transform: none !important;
    box-shadow: none !important;
}

#wishesCount.update {
    animation: pop 0.3s ease;
    display: inline-block;
}

@keyframes pop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.4);
        color: var(--color-gold);
    }

    100% {
        transform: scale(1);
    }
}

/* === ================================
   BOTTOM NAVIGATION
   =================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    /* Slightly more opaque for performance */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    padding: 0.8rem 0;
    z-index: 9998;
    transform: translateZ(0);
}

@media (max-width: 768px) {
    .bottom-nav {
        backdrop-filter: blur(5px);
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-gray);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.nav-item:hover,
.nav-item.active {
    color: var(--color-gold);
}

.nav-item i {
    font-size: 1.5rem;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   RESPONSIVE DESIGN - MOBILE OPTIMIZED
   =================================== */

/* Tablet & Medium Screens */
@media (max-width: 768px) {
    :root {
        --spacing-xs: 0.4rem;
        --spacing-sm: 0.8rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 2.5rem;
        --spacing-xl: 3.5rem;
    }

    html {
        font-size: 15px;
    }

    .container {
        padding: 0 1.5rem;
    }

    /* Cover Page */
    .cover-label {
        font-size: 2rem;
    }

    .cover-names {
        font-size: 3rem;
        letter-spacing: 2px;
    }

    .guest-name-cover {
        font-size: 1.3rem;
    }

    .btn-open-invitation {
        padding: 0.9rem 2.5rem;
        font-size: 1rem;
    }

    /* Sections */
    section {
        padding: var(--spacing-xl) 0;
    }

    .section-title {
        font-size: 2.8rem;
        margin-bottom: var(--spacing-md);
    }

    /* Glass Cards */
    .glass-card {
        padding: var(--spacing-md);
        border-radius: 18px;
    }

    /* Welcome */
    .greeting {
        font-size: 1.2rem;
    }

    .verse-text {
        font-size: 1rem;
    }

    .verse-source {
        font-size: 1rem;
    }

    /* Couple */
    .couple-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .couple-divider {
        transform: rotate(90deg);
        font-size: 3.5rem;
        margin: var(--spacing-md) 0;
    }

    .couple-card {
        padding: var(--spacing-md);
    }

    .photo-frame {
        width: 180px;
        height: 180px;
    }

    .couple-name {
        font-size: 2.2rem;
    }

    .couple-fullname {
        font-size: 1.1rem;
    }

    /* Countdown */
    .countdown-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .countdown-value {
        font-size: 2.8rem;
    }

    /* Events */
    .event-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .event-card {
        padding: var(--spacing-md);
    }

    .event-icon {
        font-size: 2.5rem;
    }

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

    .event-date {
        font-size: 1.3rem;
    }

    /* Timeline */
    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
        gap: var(--spacing-sm);
    }

    .timeline-item:nth-child(even) {
        direction: ltr;
    }

    .timeline-date {
        font-size: 0.9rem;
        padding: 0.4rem 1.2rem;
    }

    .timeline-photo {
        height: 180px;
    }

    /* Gallery */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    /* Gift Cards */
    .gift-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .bank-card {
        padding: var(--spacing-md);
    }

    /* RSVP */
    .rsvp-form,
    .wishes-container {
        padding: var(--spacing-md);
        border-radius: 20px;
    }

    /* Bottom Nav */
    .bottom-nav {
        padding: 0.7rem 0;
    }

    .nav-item {
        font-size: 0.8rem;
    }

    .nav-item i {
        font-size: 1.4rem;
    }
}

/* Mobile Phones - Optimized */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.3rem;
        --spacing-sm: 0.6rem;
        --spacing-md: 1.2rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }

    html {
        font-size: 14px;
    }

    body {
        line-height: 1.5;
    }

    .container {
        padding: 0 1rem;
    }

    /* Cover Page - Mobile Optimized */
    .cover-page {
        padding: 0 1rem;
        height: 100dvh;
        min-height: -webkit-fill-available;
    }

    .cover-label {
        font-size: 1.6rem;
        margin-bottom: 0.8rem;
    }

    .cover-names {
        font-size: 2.8rem;
        letter-spacing: 1px;
        margin-bottom: 2rem;
        line-height: 1.2;
        text-shadow: 0 4px 15px rgba(212, 175, 55, 0.5);
    }

    .guest-label {
        font-size: 0.95rem;
    }

    .guest-name-cover {
        font-size: 1.2rem;
    }

    .cover-guest {
        margin-bottom: 2rem;
    }

    .btn-open-invitation {
        padding: 0.85rem 2rem;
        font-size: 0.95rem;
        gap: 0.6rem;
    }

    .btn-open-invitation i {
        font-size: 1.1rem;
    }

    .cover-ornament {
        width: 80px;
        height: 80px;
    }

    .cover-ornament.top-left,
    .cover-ornament.top-right {
        top: 15px;
    }

    .cover-ornament.bottom-left,
    .cover-ornament.bottom-right {
        bottom: 15px;
    }

    .cover-ornament.top-left,
    .cover-ornament.bottom-left {
        left: 15px;
    }

    .cover-ornament.top-right,
    .cover-ornament.bottom-right {
        right: 15px;
    }

    /* Music Toggle - Bottom Mobile Position */
    .music-toggle {
        width: 50px;
        height: 50px;
        top: auto;
        left: auto;
        bottom: 110px;
        right: 20px;
        font-size: 1.1rem;
    }

    /* Sections */
    section {
        padding: var(--spacing-lg) 0;
    }

    .section-title {
        font-size: 2.2rem;
        margin-bottom: var(--spacing-md);
    }

    .section-description {
        font-size: 1rem;
        padding: 0 0.5rem;
    }

    /* Glass Cards */
    .glass-card {
        padding: 1.5rem;
        border-radius: 15px;
    }

    /* Welcome Section */
    .welcome-section {
        padding-top: var(--spacing-xl);
    }

    .greeting {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-md);
    }

    .verse-text {
        font-size: 0.95rem;
        line-height: 1.7;
        padding: 0 0.5rem;
    }

    .verse-source {
        font-size: 0.9rem;
    }

    /* Couple Section - Major Mobile Improvements */
    .couple-container {
        gap: var(--spacing-md);
    }

    .couple-card {
        padding: 1.5rem 1rem;
        border-radius: 20px;
    }

    .couple-divider {
        font-size: 2.8rem;
        margin: 1rem 0;
        text-align: center;
    }

    .photo-frame {
        width: 140px;
        height: 140px;
        border-width: 4px;
        margin-bottom: 1rem;
    }

    .photo-placeholder {
        font-size: 3.5rem;
    }

    .couple-name {
        font-size: 1.9rem;
        margin-bottom: 0.5rem;
    }

    .couple-fullname {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .couple-parents {
        font-size: 0.9rem;
        line-height: 1.6;
        margin-bottom: 1rem;
    }

    .social-link {
        font-size: 0.9rem;
    }

    /* Countdown - Mobile Optimized */
    .countdown-section .section-title {
        font-size: 2rem;
    }

    .countdown-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
        max-width: 100%;
    }

    .countdown-box {
        padding: 1.2rem 0.8rem;
        border-radius: 12px;
    }

    .countdown-value {
        font-size: 2.3rem;
        margin-bottom: 0.3rem;
    }

    .countdown-label {
        font-size: 0.8rem;
        letter-spacing: 1px;
    }

    /* Event Section - Mobile */
    .event-cards {
        gap: var(--spacing-md);
    }

    .event-card {
        padding: 1.5rem;
        border-radius: 18px;
    }

    .event-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .event-name {
        font-size: 1.6rem;
        margin-bottom: 0.8rem;
    }

    .event-date {
        font-size: 1.2rem;
    }

    .event-day {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .event-time {
        font-size: 1rem;
    }

    .event-location {
        font-size: 0.95rem;
    }

    .location-address {
        font-size: 0.85rem;
        line-height: 1.5;
    }

    .btn-secondary {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    /* Timeline - Mobile View */
    .timeline {
        padding-left: 0;
    }

    .timeline::before {
        left: 15px;
        width: 2px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 40px;
        margin-bottom: var(--spacing-lg);
    }

    .timeline-item:nth-child(even) {
        direction: ltr;
    }

    .timeline-date {
        font-size: 0.85rem;
        padding: 0.4rem 1rem;
        margin-bottom: 1rem;
        display: inline-block;
        position: relative;
    }

    .timeline-date::before {
        content: '';
        position: absolute;
        left: -32px;
        top: 50%;
        transform: translateY(-50%);
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--color-gold);
        border: 3px solid white;
        box-shadow: 0 0 0 2px var(--color-gold);
    }

    .timeline-content {
        padding: 1.2rem;
        border-radius: 15px;
    }

    .timeline-photo {
        height: 150px;
        border-radius: 12px;
        margin-bottom: 1rem;
    }

    .timeline-photo .photo-placeholder {
        font-size: 2.5rem;
    }

    .timeline-content h4 {
        font-size: 1.3rem;
        margin-bottom: 0.5rem;
    }

    .timeline-content p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* Gallery - Mobile Single Column */
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .gallery-item {
        border-radius: 15px;
    }

    .gallery-item .photo-placeholder {
        font-size: 2.5rem;
    }

    /* Video Section */
    .video-placeholder {
        padding: 60px 1.5rem;
        border-radius: 15px;
    }

    .video-placeholder i {
        font-size: 3.5rem;
        margin-bottom: 1rem;
    }

    .video-placeholder p {
        font-size: 1rem;
    }

    /* Gift Section - Mobile Stacked */
    .gift-description {
        font-size: 1rem;
        padding: 0 0.5rem;
        margin-bottom: var(--spacing-md);
    }

    .gift-cards {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .bank-card {
        padding: 1.5rem;
        border-radius: 15px;
    }

    .bank-logo {
        font-size: 1.3rem;
        margin-bottom: 1.2rem;
    }

    .bank-logo i {
        font-size: 1.8rem;
    }

    .account-number {
        font-size: 1.3rem;
        letter-spacing: 1px;
    }

    .account-name {
        font-size: 1rem;
    }

    .btn-copy {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        min-height: 44px;
    }

    /* RSVP Section - Mobile */
    .rsvp-form,
    .wishes-container {
        padding: 1.5rem;
        border-radius: 18px;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.9rem 1.2rem;
        font-size: 0.95rem;
        border-radius: 12px;
    }

    .wishes-title {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .wishes-list {
        max-height: 400px;
    }

    .wish-item {
        padding: 1rem;
        border-radius: 8px;
        margin-bottom: 0.8rem;
    }

    .wish-name {
        font-size: 0.95rem;
    }

    .wish-attendance {
        font-size: 0.75rem;
        padding: 0.25rem 0.7rem;
    }

    .wish-message {
        font-size: 0.9rem;
    }

    /* Closing Section */
    .closing-section {
        padding-bottom: 80px;
    }

    .closing-content {
        padding: var(--spacing-lg);
        border-radius: 18px;
    }

    .closing-text {
        font-size: 1rem;
        line-height: 1.7;
    }

    .closing-greeting {
        font-size: 1.1rem;
    }

    .closing-names {
        font-size: 2rem;
    }

    /* Buttons - Mobile Touch Optimized */
    .btn-primary,
    .btn-secondary {
        padding: 0.9rem 1.8rem;
        font-size: 0.95rem;
        min-height: 44px;
    }

    .btn-primary i,
    .btn-secondary i {
        font-size: 1rem;
    }

    /* Bottom Navigation - Mobile Optimized */
    .bottom-nav {
        padding: 0.5rem 0;
        padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
    }

    .nav-item {
        gap: 0.2rem;
        font-size: 0.7rem;
        padding: 0.3rem 0;
    }

    .nav-item i {
        font-size: 1.2rem;
    }

    .nav-item span {
        font-size: 0.7rem;
    }
}

/* Extra Small Devices (iPhone SE, etc) */
@media (max-width: 375px) {
    html {
        font-size: 13px;
    }

    .cover-names {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .couple-name {
        font-size: 1.7rem;
    }

    .photo-frame {
        width: 120px;
        height: 120px;
    }

    .countdown-value {
        font-size: 2rem;
    }

    .event-name {
        font-size: 1.4rem;
    }

    .closing-names {
        font-size: 1.8rem;
    }

    .cover-ornament {
        width: 60px;
        height: 60px;
    }
}

/* Landscape Mobile Optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .cover-page {
        min-height: 100vh;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .countdown-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Safe Area for Notched Devices */
@supports (padding: max(0px)) {
    .bottom-nav {
        padding-bottom: max(0.5rem, env(safe-area-inset-bottom));
    }

    .music-toggle {
        bottom: max(110px, env(safe-area-inset-bottom));
        right: max(20px, env(safe-area-inset-right));
        top: auto;
        left: auto;
    }
}