/* Minimal Design - Clean Wedding Invitation */

@font-face {
    font-family: 'MS Mincho';
    src: url('/static/fonts/MSMINCHO.TTF') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

@font-face {
    font-family: 'SunBatang';
    src: url('/static/fonts/SunBatang-Medium.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

:root {
    --color-bg: #FFFFFF;
    --color-text: #333333;
    --color-text-light: #888888;
    --color-accent: #D4A574;
    --color-border: #EEEEEE;
    --color-card: #FAFAFA;

    --font-serif: 'SunBatang', 'Noto Serif KR', serif;
    --font-sans: 'SunBatang', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --max-width: 430px;

    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s ease;
}

/* Japanese font override */
html[lang="ja"] {
    --font-serif: 'MS Mincho', 'Yu Mincho', '游明朝', 'Hiragino Mincho ProN', serif;
    --font-sans: 'MS Mincho', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

/* Prevent scroll when intro is visible */
body.intro-visible {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

/* Intro Overlay */
.intro-overlay {
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, #F5F0EB 0%, #E8E0D8 100%);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    overflow: hidden;
    transition: opacity 1s cubic-bezier(0.25, 0.1, 0.25, 1),
                visibility 1s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.intro-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.intro-content {
    text-align: center;
    padding: 40px;
}

.intro-date {
    font-size: 14px;
    letter-spacing: 4px;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.intro-names {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 48px;
    line-height: 1.4;
}

.intro-button {
    padding: 16px 48px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 15px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.intro-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 165, 116, 0.3);
}

.intro-button:active {
    transform: translateY(0);
}

.intro-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    font-size: 14px;
    color: var(--color-text-light);
}

/* Intro Names - Both languages */
.intro-names-ja {
    display: block;
    font-size: 20px;
    margin-top: 8px;
    opacity: 0.8;
}

/* Intro Language Selection */
.intro-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.intro-select-lang {
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--color-text-light);
    text-transform: uppercase;
}

.intro-lang-buttons {
    display: flex;
    gap: 16px;
}

.intro-lang-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 32px;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.intro-lang-btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

.lang-flag {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-accent);
}

.lang-name {
    font-size: 16px;
    color: var(--color-text);
}

/* Easter Egg Styles */
.easter-egg-name {
    cursor: pointer;
    transition: color 0.2s ease, transform 0.1s ease;
    user-select: none;
    display: inline-block;
    pointer-events: auto;
    position: relative;
    z-index: 10;
}

.easter-egg-name:hover {
    color: var(--color-accent);
}

.easter-egg-name:active {
    transform: scale(0.95);
    color: var(--color-accent);
}

.easter-egg-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--color-text-light);
    opacity: 0.6;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    animation: hintPulse 3s ease-in-out infinite;
}

.hint-icon {
    font-size: 14px;
}

@keyframes hintPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

/* Easter Egg Modal */
.easter-egg-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    padding: 20px;
    transition: opacity 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.easter-egg-modal.active {
    display: flex;
    opacity: 1;
}

.easter-egg-content {
    background: var(--color-bg);
    border-radius: 16px;
    padding: 40px 28px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    position: relative;
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1),
                opacity 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.easter-egg-modal.active .easter-egg-content {
    transform: translateY(0);
    opacity: 1;
}

.easter-egg-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--color-text-light);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.easter-egg-emoji {
    font-size: 48px;
    margin-bottom: 12px;
    animation: eggBounce 0.6s ease;
}

@keyframes eggBounce {
    0% { transform: scale(0); }
    60% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.easter-egg-title {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.easter-egg-info {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 24px;
    text-align: left;
}

.easter-egg-info p {
    margin-bottom: 4px;
}

.easter-egg-info .info-label {
    font-size: 10px;
    color: var(--color-accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 12px;
    margin-bottom: 2px;
}

.easter-egg-info .info-label:first-child {
    margin-top: 0;
}

.easter-egg-info .info-value {
    font-size: 14px;
    color: var(--color-text);
    font-weight: 400;
    line-height: 1.5;
}

.easter-egg-found {
    font-size: 12px;
    color: var(--color-text-light);
    padding: 8px 16px;
    background: rgba(212, 165, 116, 0.15);
    border-radius: 20px;
    display: inline-block;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background-color: #F5F0EB;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* App Container */
.app-container {
    max-width: var(--max-width);
    margin: 0 auto;
    background-color: var(--color-bg);
    min-height: 100vh;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.08);
}

/* Navigation */
.nav-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Music Toggle in Nav */
.music-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.music-toggle:hover {
    background: var(--color-card);
}

.music-toggle svg {
    width: 16px;
    height: 16px;
    color: var(--color-text);
}

.music-toggle.muted svg {
    color: var(--color-text-light);
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

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

.lang-divider {
    color: var(--color-border);
}

.lang-switch {
    color: var(--color-text-light);
    text-decoration: none;
}

/* Hero Section */
.hero-section {
    min-height: calc(100vh - 56px);
    min-height: calc(100dvh - 56px);
    padding: 20px 24px 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 300;
    font-style: italic;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 32px;
}

/* Photo Frame */
.photo-frame {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 28px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.main-photo {
    width: 100%;
    display: block;
}

/* Petals Animation */
.petals-container {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.petal {
    position: absolute;
    width: 12px;
    height: 12px;
    background: radial-gradient(ellipse at center,
        rgba(255, 220, 200, 0.9) 0%,
        rgba(255, 200, 180, 0.6) 50%,
        transparent 70%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: petalFall linear infinite;
    opacity: 0;
}

@keyframes petalFall {
    0% {
        opacity: 0;
        transform: translateY(-20px) rotate(0deg) scale(0.5);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(400px) rotate(360deg) scale(1);
    }
}

/* Couple Names */
.couple-names {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 400;
}

.names-heart {
    color: var(--color-accent);
    font-size: 14px;
}

/* Calendar Section */
.calendar-section {
    min-height: 100vh;
    min-height: 100dvh;
    padding: 60px 24px;
    text-align: center;
    background-color: var(--color-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.calendar-title {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    letter-spacing: 6px;
    color: var(--color-text);
    margin-bottom: 20px;
}

.calendar-date-main {
    font-size: 15px;
    color: var(--color-text);
    margin-bottom: 6px;
}

.calendar-date-sub {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.calendar-grid {
    width: 100%;
    max-width: 320px;
    margin-bottom: 32px;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.calendar-header span {
    font-size: 12px;
    color: var(--color-text-light);
    text-align: center;
}

.calendar-header .sun {
    color: #D4A5A5;
}

.calendar-header .sat {
    color: #7BA3C9;
}

.calendar-body {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.calendar-body span {
    font-size: 14px;
    color: var(--color-text);
    text-align: center;
    padding: 6px 0;
}

.calendar-body .sun {
    color: #D4A5A5;
}

.calendar-body .sat {
    color: #7BA3C9;
}

.calendar-body .wedding-day {
    background-color: var(--color-accent);
    color: white;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.countdown-container {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.countdown-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 16px 12px;
    min-width: 64px;
}

.countdown-number {
    display: block;
    font-size: 24px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 4px;
}

.countdown-label {
    display: block;
    font-size: 10px;
    color: var(--color-text-light);
    letter-spacing: 1px;
}

.countdown-message {
    font-size: 14px;
    color: var(--color-text);
}

.countdown-message .heart {
    color: var(--color-accent);
}

.countdown-message .dday-number {
    color: var(--color-accent);
    font-weight: 600;
}

/* Message Section */
.message-section {
    min-height: 100vh;
    min-height: 100dvh;
    padding: 40px 24px;
    text-align: center;
    background-color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.invitation-message {
    font-size: 15px;
    line-height: 2;
    color: var(--color-text);
}

/* Info Section */
.info-section {
    min-height: 100vh;
    min-height: 100dvh;
    padding: 40px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-card);
}

/* Video Section */
.video-section {
    padding: 60px 24px;
    background-color: var(--color-bg);
    text-align: center;
}

.video-subtitle {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 32px;
}

.video-wrapper {
    max-width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.video-player {
    width: 100%;
    display: block;
    background: #000;
}

.info-card {
    display: flex;
    text-align: center;
}

.info-date,
.info-location {
    flex: 1;
    padding: 0 13px;
}

.info-divider {
    width: 1px;
    background-color: var(--color-border);
}

.date-label,
.location-label {
    display: block;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.date-value,
.location-value {
    font-family: var(--font-serif);
    font-size: 16px;
    margin-bottom: 8px;
}

.time-detail,
.address-detail {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Section Title */
.section-title {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    text-align: center;
    margin-bottom: 24px;
    color: var(--color-text);
}

/* Gallery Section */
.gallery-section {
    padding: 40px 24px;
    background-color: var(--color-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.gallery-item {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
}

.gallery-item:hover {
    transform: scale(1.02);
}

.gallery-item:active {
    opacity: 0.8;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-expanded {
    margin-top: 8px;
}

.gallery-more {
    text-align: center;
    margin-top: 20px;
}

.btn-gallery-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 24px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    font-size: 14px;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.btn-gallery-more:hover {
    border-color: var(--color-text);
}

.btn-gallery-more.expanded svg {
    transform: rotate(180deg);
}

.btn-gallery-more svg {
    transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox img {
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: white;
    font-size: 32px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 16px;
}

.lightbox-next {
    right: 16px;
}

.lightbox-counter {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 14px;
}

/* Map Section */
.map-section {
    padding: 40px 24px;
    background-color: var(--color-card);
}

.map-container {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
}

.map-container iframe {
    width: 100%;
    height: 200px;
    border: none;
}

.map-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.map-btn {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
    font-size: 13px;
    color: var(--color-text);
    background: var(--color-bg);
    transition: all 0.2s;
}

.map-btn:active {
    transform: scale(0.98);
}

.map-btn.kakao:hover { background: #FEE500; border-color: #FEE500; }
.map-btn.naver:hover { background: #03C75A; border-color: #03C75A; color: white; }
.map-btn.google:hover { background: #4285F4; border-color: #4285F4; color: white; }

.transport-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.transport-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px;
    background: var(--color-card);
    border-radius: 12px;
}

.transport-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    color: var(--color-accent);
}

.transport-icon svg {
    width: 100%;
    height: 100%;
}

.transport-text h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
}

.transport-text p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* RSVP Section */
.rsvp-section {
    padding: 40px 24px;
    background-color: var(--color-card);
}

.rsvp-form {
    max-width: 320px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="tel"] {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    font-size: 15px;
    background: var(--color-bg);
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.toggle-group {
    display: flex;
    gap: 8px;
}

.toggle-option {
    flex: 1;
}

.toggle-option input {
    display: none;
}

.toggle-option span {
    display: block;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    text-align: center;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--color-bg);
}

.toggle-option input:checked + span {
    background-color: var(--color-text);
    border-color: var(--color-text);
    color: white;
}

/* Attendee Count Input */
.attendee-count-input {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.count-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: var(--color-bg);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: var(--color-text);
}

.count-btn:hover {
    border-color: var(--color-text);
    background: var(--color-card);
}

.count-btn:active {
    transform: scale(0.95);
}

#attendeeCount {
    width: 60px;
    height: 40px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    background: var(--color-bg);
    color: var(--color-text);
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background-color: var(--color-text);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-submit:active {
    opacity: 0.8;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1500;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--color-bg);
    border-radius: 16px;
    padding: 32px 24px;
    width: 100%;
    max-width: 360px;
    position: relative;
    transform: translateY(16px);
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1),
                opacity 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.modal.active .modal-content {
    transform: translateY(0);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--color-text-light);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    text-align: center;
    margin-bottom: 24px;
    color: var(--color-text);
}

/* Floating Action Button */
.fab-rsvp {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-text);
    color: white;
    border: none;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: transform 0.2s, box-shadow 0.2s;
}

/* 넓은 화면에서 컨텐츠 영역 안에 고정 */
@media (min-width: 481px) {
    .fab-rsvp {
        right: calc(50% - var(--max-width) / 2 + 24px);
    }
}

.fab-rsvp:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.fab-rsvp:active {
    transform: scale(0.95);
}

/* Account Section */
.account-section {
    padding: 40px 24px;
    background: var(--color-bg);
}

.account-divider {
    width: 40px;
    height: 1px;
    background: var(--color-border);
    margin: 0 auto 32px;
}

.account-desc {
    text-align: center;
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.account-accordion {
    max-width: 360px;
    margin: 0 auto;
}

.accordion-item {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 16px 20px;
    background: var(--color-bg);
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 15px;
    color: var(--color-text);
}

.accordion-header svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-light);
    transition: transform 0.3s ease;
}

.accordion-header.active svg {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    text-align: center;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.25, 0.1, 0.25, 1),
                opacity 0.4s cubic-bezier(0.25, 0.1, 0.25, 1),
                padding 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.accordion-content.active {
    max-height: 500px;
    padding: 0 20px 20px;
    opacity: 1;
}

.account-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.account-tab {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-bg);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.account-tab.active {
    background-color: var(--color-text);
    border-color: var(--color-text);
    color: white;
}

.account-panel {
    display: none;
    text-align: center;
    padding: 24px;
    background: var(--color-card);
    border-radius: 12px;
}

.account-panel.active {
    display: block;
}

.account-bank {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.account-number {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
    word-break: break-all;
}

.account-holder {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.btn-copy {
    padding: 10px 24px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-copy:active {
    background: var(--color-card);
}

/* Account Item for multiple accounts */
.account-item {
    padding: 8px 0;
}

.account-label {
    font-size: 11px;
    color: var(--color-accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.account-divider-line {
    height: 1px;
    background: var(--color-border);
    margin: 16px 0;
}

/* Guestbook Section */
.guestbook-section {
    padding: 60px 24px;
    background-color: #C9A87C;
    background: linear-gradient(180deg, #C9A87C 0%, #D4B896 100%);
}

.guestbook-title {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
    letter-spacing: 6px;
    color: #fff;
    text-align: center;
    margin-bottom: 12px;
}

.guestbook-subtitle {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    margin-bottom: 32px;
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
    max-height: 500px;
    overflow-y: auto;
}

.message-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 12px;
    position: relative;
}

.message-text {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 16px;
    white-space: pre-wrap;
}

.message-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.message-from {
    font-size: 13px;
    color: var(--color-accent);
}

.message-from strong {
    color: var(--color-text);
}

.message-date {
    font-size: 12px;
    color: var(--color-text-light);
}

.btn-write-message {
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 30px;
    font-size: 15px;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-write-message:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Message Modal */
.message-modal-content {
    padding: 40px 24px;
}

.message-modal-title {
    font-size: 20px;
    font-weight: 500;
    text-align: center;
    margin-bottom: 8px;
    color: var(--color-text);
}

.message-modal-subtitle {
    font-size: 14px;
    color: var(--color-accent);
    text-align: center;
    margin-bottom: 24px;
}

.message-modal-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.message-modal-form input,
.message-modal-form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--color-bg);
    resize: none;
}

.message-modal-form input:focus,
.message-modal-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.btn-submit-message {
    width: 100%;
    padding: 16px;
    background: var(--color-accent);
    border: none;
    border-radius: 8px;
    font-size: 15px;
    color: #fff;
    cursor: pointer;
    margin-top: 8px;
    transition: opacity 0.2s;
}

.btn-submit-message:hover {
    opacity: 0.9;
}

.message-date {
    font-size: 12px;
    color: var(--color-text-light);
}

.message-text {
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.6;
}

/* RSVP Section Inline */
.rsvp-section-inline {
    padding: 60px 24px;
    text-align: center;
    background: var(--color-card);
}

.rsvp-divider {
    width: 40px;
    height: 1px;
    background: var(--color-border);
    margin: 0 auto 32px;
}

.rsvp-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.btn-rsvp-inline {
    display: inline-block;
    padding: 16px 48px;
    background: var(--color-text);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 15px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-rsvp-inline:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-rsvp-inline:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    padding: 40px 24px;
    text-align: center;
    background: var(--color-bg);
}

.footer-names {
    font-family: var(--font-serif);
    font-size: 18px;
    margin-bottom: 8px;
}

.footer-date {
    font-size: 13px;
    color: var(--color-text-light);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--color-text);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Animations */
.animate-fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1.2s cubic-bezier(0.25, 0.1, 0.25, 1) forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 1s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 1s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered reveal for children */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1),
                transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }


/* Photo Frame Animation */
.photo-frame {
    animation: photoFloat 8s ease-in-out infinite;
}

@keyframes photoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* Gallery Item Hover Effect */
.gallery-item {
    transition: transform 0.5s cubic-bezier(0.25, 0.1, 0.25, 1),
                box-shadow 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

/* Heart Animation */
.names-heart {
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Responsive - Mobile First */
@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .photo-frame {
        max-width: 280px;
    }

    .couple-names {
        font-size: 16px;
    }

    .gallery-grid {
        gap: 6px;
    }

    .section-title {
        font-size: 18px;
    }

    .fab-rsvp {
        width: 56px;
        height: 56px;
        font-size: 11px;
        bottom: 20px;
        right: 20px;
    }
}

/* Desktop - Wide screens */
@media (min-width: 481px) {
    body {
        padding: 20px 0;
    }

    .app-container {
        border-radius: 24px;
        min-height: calc(100vh - 40px);
    }
}