:root {
    --bg-cream: #FFFEF7;
    --bg-card: #FFFFFF;
    --bg-gold-light: #FDF6E3;
    --bg-gold-medium: #F5E6C8;
    --text-brown: #5D4037;
    --text-brown-light: #795548;
    --text-muted: #8D7B68;
    --text-body: #6B5B4F;
    --accent-gold: #C9A227;
    --accent-gold-hover: #B8960F;
    --accent-gold-light: rgba(201, 162, 39, 0.15);
    --accent-champagne: #D4AF37;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --transition: all 0.3s ease;
    --shadow-soft: 0 4px 20px rgba(93, 64, 55, 0.1);
}

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

html { scroll-behavior: smooth; font-size: 18px; }

body {
    font-family: var(--font-sans);
    background-color: var(--bg-cream);
    color: var(--text-body);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 520px;
    margin: 0 auto;
    padding: 40px 24px;
    animation: fadeIn 0.8s ease;
}

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

.balloons-decoration {
    position: fixed;
    top: -20px;
    left: -30px;
    width: 280px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.95;
    animation: floatBalloons 8s ease-in-out infinite;
}

@keyframes floatBalloons {
    0%, 100% { transform: translateY(0) rotate(-3deg); }
    50% { transform: translateY(-35px) rotate(3deg); }
}

.balloon-40th {
    position: fixed;
    top: 30px;
    right: 20px;
    width: 160px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.95;
    animation: float40th 6s ease-in-out infinite;
}

@keyframes float40th {
    0%, 100% { transform: translateY(0) rotate(2deg); }
    50% { transform: translateY(-25px) rotate(-2deg); }
}

.hero::before {
    content: '✦';
    position: absolute;
    top: 10px;
    right: calc(15% + 50px);
    font-size: 1rem;
    color: var(--accent-gold);
    animation: twinkle 2s ease-in-out infinite;
}

.hero::after {
    content: '✦';
    position: absolute;
    top: 30px;
    right: calc(25% + 50px);
    font-size: 0.7rem;
    color: var(--accent-champagne);
    animation: twinkle 2s ease-in-out infinite 0.5s;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

body::after {
    content: '';
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: linear-gradient(to top, rgba(212, 175, 55, 0.3), rgba(212, 175, 55, 0.1), transparent);
    pointer-events: none;
    z-index: -1;
}

.hero {
    text-align: center;
    padding: 30px 0 15px;
    position: relative;
}

.hero-image {
    max-width: 100%;
    width: 380px;
    height: auto;
}

@media (max-width: 480px) {
    .hero-image { width: 300px; }
}

.countdown-section {
    padding: 28px 0;
    margin: 0 0 24px 0;
    background: var(--bg-gold-light);
    border-radius: var(--border-radius);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.countdown-item {
    text-align: center;
    background: var(--bg-card);
    padding: 16px 12px;
    border-radius: var(--border-radius-sm);
    min-width: 70px;
    box-shadow: var(--shadow-soft);
}

.countdown-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-brown);
    line-height: 1;
}

.countdown-label {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.35rem;
}

.event-details {
    padding: 12px 0;
    text-align: center;
}

.detail-block { margin-bottom: 16px; }

.detail-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.35rem;
}

.hero-label {
    margin-top: 12px;
    margin-bottom: 4px;
}

.detail-value {
    display: block;
    font-size: 1.55rem;
    color: var(--text-brown);
    font-weight: 500;
    font-family: var(--font-serif);
}

.detail-note {
    display: block;
    font-size: 1rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.maps-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px 24px;
    color: var(--accent-gold);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    background: transparent;
    border: 2px solid var(--bg-gold-medium);
    border-radius: 25px;
    transition: var(--transition);
}

.maps-link::before { content: '🗺️'; font-size: 1rem; }

.maps-link:hover {
    background: var(--bg-gold-light);
    border-color: var(--accent-gold);
    color: var(--text-brown);
}

.rsvp-section {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 32px 28px;
    margin-top: 12px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--bg-gold-light);
}

.rsvp-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 28px;
    color: var(--text-brown);
}

.form-group { margin-bottom: 24px; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 10px;
    font-weight: 500;
}

.form-group input[type="text"] {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-brown);
    background: var(--bg-cream);
    border: 2px solid var(--bg-gold-medium);
    border-radius: var(--border-radius-sm);
    outline: none;
    transition: var(--transition);
}

.form-group input[type="text"]:focus {
    border-color: var(--accent-gold);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px var(--accent-gold-light);
}

.form-group input[type="text"]::placeholder { color: var(--text-muted); }

.toggle-group { display: flex; gap: 12px; }

.toggle-btn {
    flex: 1;
    padding: 14px 16px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 2px solid var(--bg-gold-medium);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.toggle-btn:hover {
    border-color: var(--accent-gold);
    color: var(--text-brown-light);
    background: var(--bg-gold-light);
}

.toggle-btn.active {
    background: transparent;
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    font-weight: 600;
}

.radio-indicator {
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-gold-medium);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.toggle-btn:hover .radio-indicator { border-color: var(--accent-gold); }

.toggle-btn.active .radio-indicator {
    border-color: var(--accent-gold);
    background: var(--accent-gold);
}

.toggle-btn.active .radio-indicator::after {
    content: '';
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

.drinks-group { animation: slideDown 0.3s ease; }
.drinks-group.hidden { display: none; }

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

.drinks-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.drink-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-cream);
    border: 2px solid var(--bg-gold-light);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.drink-item:hover {
    background: var(--bg-gold-light);
    border-color: var(--bg-gold-medium);
}

.drink-item.selected {
    background: var(--accent-gold-light);
    border-color: var(--accent-gold);
}

.drink-item input[type="checkbox"] { display: none; }

.drink-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    transition: var(--transition);
    flex-shrink: 0;
}

.drink-icon svg { width: 22px; height: 22px; }
.drink-item.selected .drink-icon { color: var(--text-brown); }

.drink-label {
    font-size: 0.9rem;
    color: var(--text-brown-light);
    font-weight: 500;
    flex: 1;
}

.drink-item.selected .drink-label { color: var(--text-brown); }

.drink-item::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-gold-medium);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    margin-left: auto;
}

.drink-item.selected::after {
    content: '✓';
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: white;
    font-size: 11px;
    font-weight: bold;
}

.submit-btn {
    width: 100%;
    padding: 16px 32px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    color: white;
    background: var(--accent-gold);
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-top: 8px;
}

.submit-btn:hover {
    background: var(--accent-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 162, 39, 0.35);
}

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

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.message {
    margin-top: 24px;
    padding: 18px;
    border-radius: var(--border-radius-sm);
    text-align: center;
    font-size: 0.95rem;
    animation: fadeIn 0.3s ease;
}

.message.success {
    background: #E8F5E9;
    border: 1px solid #A5D6A7;
    color: #2E7D32;
}

.message.error {
    background: #FFEBEE;
    border: 1px solid #EF9A9A;
    color: #C62828;
}


@media (max-width: 480px) {
    .container { padding: 24px 16px; }
    .hero { padding: 36px 0 30px; }
    .countdown { gap: 12px; }
    .countdown-item { min-width: 60px; padding: 12px 8px; }
    .countdown-value { font-size: 1.8rem; }
    .rsvp-section { padding: 28px 20px; }
    .toggle-group { flex-direction: column; }
    .drinks-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .balloons-decoration { width: 220px; top: -10px; left: -20px; }
    .balloon-40th { width: 127px; top: 25px; right: 15px; }
}

@media (max-width: 600px) {
    .balloons-decoration { width: 180px; top: -15px; left: -25px; }
    .balloon-40th { width: 104px; top: 20px; right: 10px; }
}

@media (max-width: 480px) {
    .balloons-decoration { width: 160px; top: -20px; left: -35px; }
    .balloon-40th { width: 86px; top: 15px; right: 8px; }
}