/* 
   Save the Date - Premium CSS Stylesheet
   Designed for Hyeokju Gwon & Madison Marshall's wedding
*/

/* -----------------------------------------
   1. Design Tokens & Variables
   ----------------------------------------- */
:root {
    /* Color System */
    --color-champagne: hsl(38, 30%, 93%);
    --color-champagne-light: hsl(100, 12%, 97%);
    --color-cream: hsl(100, 10%, 99%);
    --color-gold-metallic: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%);
    --color-gold-solid: #a37c3f;
    --color-gold-light: rgba(163, 124, 63, 0.12);
    
    --color-text-dark: #1c2821; /* Deep forest charcoal */
    --color-text-muted: #556259; /* Soft sage charcoal */
    
    --glass-bg: rgba(255, 255, 255, 0.65); /* Increased opacity for excellent readability */
    --glass-border: rgba(255, 255, 255, 0.75);
    --glass-shadow: 0 24px 64px rgba(28, 40, 33, 0.15);
    --glass-blur: blur(24px);

    /* Fonts */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Montserrat', sans-serif;
    --font-script: 'Great Vibes', cursive;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-dark);
    background-color: var(--color-champagne-light);
    background-image: url('assets/wedding_background.png');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 2rem 1.5rem;
}

/* Vignette overlay for rich visual contrast */
.bg-vignette {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0) 40%, rgba(43, 37, 32, 0.15) 100%);
    pointer-events: none;
    z-index: 1;
}

/* -----------------------------------------
   3. Main Container & Elegant Card
   ----------------------------------------- */
.main-container {
    width: 100%;
    max-width: 600px;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.save-the-date-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    padding: 3.5rem 2.5rem;
    width: 100%;
    text-align: center;
    position: relative;
    overflow: hidden;
    
    /* Animation on load */
    animation: cardFadeIn 1.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
    transform: translateY(30px);
}

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

/* -----------------------------------------
   4. Golden Corner Accents
   ----------------------------------------- */
.corner-gold {
    position: absolute;
    width: 25px;
    height: 25px;
    border: 1px solid transparent;
    pointer-events: none;
}

.corner-gold::before,
.corner-gold::after {
    content: '';
    position: absolute;
    background: var(--color-gold-solid);
}

/* Size and offsets for corner styling */
.top-left {
    top: 20px;
    left: 20px;
}
.top-left::before { top: 0; left: 0; width: 100%; height: 1px; }
.top-left::after { top: 0; left: 0; width: 1px; height: 100%; }

.top-right {
    top: 20px;
    right: 20px;
}
.top-right::before { top: 0; right: 0; width: 100%; height: 1px; }
.top-right::after { top: 0; right: 0; width: 1px; height: 100%; }

.bottom-left {
    bottom: 20px;
    left: 20px;
}
.bottom-left::before { bottom: 0; left: 0; width: 100%; height: 1px; }
.bottom-left::after { bottom: 0; left: 0; width: 1px; height: 100%; }

.bottom-right {
    bottom: 20px;
    right: 20px;
}
.bottom-right::before { bottom: 0; right: 0; width: 100%; height: 1px; }
.bottom-right::after { bottom: 0; right: 0; width: 1px; height: 100%; }

/* -----------------------------------------
   5. Card Header Section
   ----------------------------------------- */
.card-header {
    margin-bottom: 2rem;
}

.save-the-date-tag {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    color: var(--color-text-muted);
    text-transform: uppercase;
    display: inline-block;
    animation: fadeInDown 1s ease-out 0.2s both;
}

.gold-divider {
    height: 1px;
    width: 60px;
    background: var(--color-gold-metallic);
    margin: 1rem auto;
    animation: scaleWidth 1s ease-out 0.4s both;
}

.announcement {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    animation: fadeInDown 1s ease-out 0.5s both;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleWidth {
    from { width: 0; }
    to { width: 60px; }
}

/* -----------------------------------------
   6. Elegant Names Section
   ----------------------------------------- */
.names-section {
    margin-bottom: 2.5rem;
}

.name-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.couple-name {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    color: var(--color-text-dark);
    line-height: 1.1;
    transition: transform 0.4s ease;
}

/* Specific Sub-name (Jason Gwon underneath Hyeokju) */
.sub-name {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #000000; /* Pure black text */
    margin-top: 0.35rem;
    position: relative;
    opacity: 0.95;
    animation: fadeIn 1.2s ease-out 0.8s both;
}

.ampersand-container {
    margin: 0.4rem 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ampersand {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 300;
    font-style: normal; /* Completely traditional upright ampersand */
    color: var(--color-gold-solid);
    line-height: 1;
    display: inline-block;
    animation: popAmpersand 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.6s both;
}

@keyframes popAmpersand {
    from {
        opacity: 0;
        transform: scale(0.7);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* -----------------------------------------
   7. Details Section (Date & Location)
   ----------------------------------------- */
.details-section {
    background: rgba(255, 255, 255, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.detail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    color: var(--color-text-dark);
}

.detail-icon {
    width: 18px;
    height: 18px;
    color: var(--color-gold-solid);
}

.event-date {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.event-location {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    font-style: normal;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* -----------------------------------------
   8. Countdown Timer Section
   ----------------------------------------- */
.countdown-section {
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 1s both;
}

.countdown-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
}

.countdown-box {
    background: rgba(255, 255, 255, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.8rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 4px 15px rgba(43, 37, 32, 0.04);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.countdown-box:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.65);
    border-color: rgba(184, 145, 70, 0.3);
    box-shadow: 0 10px 25px rgba(184, 145, 70, 0.1);
}

.countdown-value {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color-text-dark);
    line-height: 1.2;
}

.countdown-label {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
    font-weight: 500;
}

/* -----------------------------------------
   9. Button & Action Elements
   ----------------------------------------- */
.card-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.btn {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 0.9rem 1.6rem;
    border-radius: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    outline: none;
}

.btn-icon {
    width: 14px;
    height: 14px;
}

/* Primary Button Styling (Add to Calendar) */
.btn-primary {
    background: var(--color-text-dark);
    color: var(--color-champagne);
    border: 1px solid var(--color-text-dark);
    box-shadow: 0 4px 15px rgba(43, 37, 32, 0.15);
}

.btn-primary:hover,
.btn-primary:focus {
    background: transparent;
    color: var(--color-text-dark);
    border-color: var(--color-text-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(43, 37, 32, 0.2);
}

/* Secondary Button Styling (View Map) */
.btn-secondary {
    background: transparent;
    color: var(--color-text-dark);
    border: 1px solid rgba(43, 37, 32, 0.2);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: rgba(255, 255, 255, 0.3);
    border-color: var(--color-text-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(43, 37, 32, 0.05);
}

/* -----------------------------------------
   10. Interactive Dropdown Menu
   ----------------------------------------- */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(43, 37, 32, 0.12);
    border-radius: 12px;
    padding: 0.5rem 0;
    min-width: 180px;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.6rem 1.2rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--color-text-dark);
    text-decoration: none;
    text-transform: uppercase;
    text-align: center;
    transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-item:hover {
    background: var(--color-gold-light);
    color: var(--color-gold-solid);
}

.dropdown-item:not(:last-child) {
    border-bottom: 1px solid rgba(43, 37, 32, 0.05);
}

/* -----------------------------------------
   11. Invitation Card Footer
   ----------------------------------------- */
.card-footer {
    margin-top: 1.5rem;
    animation: fadeInUp 1s ease-out 1.4s both;
}

.formal-invite {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

/* -----------------------------------------
   11.5. Language Navigation & Fade Animation
   ----------------------------------------- */
.language-nav {
    position: fixed;
    top: 2rem;
    left: 2rem;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(28, 40, 33, 0.05);
    animation: fadeInDown 1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.lang-btn {
    background: transparent;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0.2rem 0.4rem;
    transition: all 0.3s ease;
    outline: none;
}

.lang-btn:hover {
    color: var(--color-gold-solid);
}

.lang-btn.active {
    color: var(--color-text-dark);
    font-weight: 600;
}

.lang-divider {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    color: rgba(28, 40, 33, 0.2);
}

/* Card Content Translation Cross-Fade */
.card-content-fade {
    transition: opacity 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 1;
}

.card-content-fade.fade-out {
    opacity: 0;
}

/* -----------------------------------------
   12. Responsive Media Queries
   ----------------------------------------- */
@media (max-width: 480px) {
    body {
        padding: 4.5rem 0.8rem 1.5rem 0.8rem; /* Increased top padding to clear language nav */
        background-attachment: scroll; /* Critical fix for iOS Safari fixed-background zoom/crop bug */
        background-position: center center;
    }

    .language-nav {
        top: 1rem;
        left: 1rem;
        padding: 0.3rem 0.6rem;
    }
    
    .save-the-date-card {
        padding: 2.5rem 1.2rem;
        background: rgba(255, 255, 255, 0.45); /* High glass translucency so background trees show through */
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid rgba(255, 255, 255, 0.5);
    }

    .details-section {
        background: rgba(255, 255, 255, 0.15);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .countdown-box {
        background: rgba(255, 255, 255, 0.3);
        border: 1px solid rgba(255, 255, 255, 0.4);
    }

    .couple-name {
        font-size: 2.1rem;
    }

    .ampersand {
        font-size: 2.8rem;
    }

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

    .countdown-value {
        font-size: 1.4rem;
    }

    .countdown-label {
        font-size: 0.55rem;
        letter-spacing: 0.1em;
    }

    .card-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }

    .dropdown-container, 
    .btn {
        width: 100%;
    }

    .dropdown-menu {
        bottom: 100%;
        width: 100%;
    }
}