/* ==========================================================================
   Wedding Invitation — Minh Đạt & Hoa
   Primary: #7E1E2B | Cream: #F7F0E8 | Gold: #D7B46A
   ========================================================================== */

:root {
    --color-primary: #7E1E2B;
    --color-primary-dark: #5A1520;
    --color-primary-light: #9A2A3A;
    --color-cream: #F7F0E8;
    --color-cream-dark: #EDE4D8;
    --color-gold: #D7B46A;
    --color-gold-light: #E8CC8A;
    --color-gold-dark: #B8963F;
    --color-text: #2C1810;
    --color-text-muted: #6B5344;
    --color-white: #FFFFFF;

    --font-script: 'Great Vibes', cursive;
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Be Vietnam Pro', system-ui, sans-serif;

    --shadow-soft: 0 4px 24px rgba(126, 30, 43, 0.08);
    --shadow-medium: 0 8px 40px rgba(126, 30, 43, 0.12);
    --shadow-strong: 0 16px 64px rgba(126, 30, 43, 0.18);
    --shadow-gold: 0 4px 20px rgba(215, 180, 106, 0.35);

    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);

    --nav-height: 72px;
    --section-padding: clamp(80px, 12vw, 140px);
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-cream);
    overflow-x: hidden;
}

body.no-scroll {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-gold-dark);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.hidden {
    display: none !important;
}

.container {
    width: min(1140px, 92vw);
    margin-inline: auto;
}

/* ==========================================================================
   Particles
   ========================================================================== */

#particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    opacity: 0;
    will-change: transform, opacity;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    height: var(--nav-height);
    transform: translateY(-100%);
    transition: transform var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
}

.main-nav.visible {
    transform: translateY(0);
}

.main-nav.scrolled {
    background: rgba(247, 240, 232, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-soft);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    width: min(1140px, 92vw);
    margin-inline: auto;
}

.nav-logo {
    font-family: var(--font-script);
    font-size: 1.75rem;
    color: var(--color-primary);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(12px, 2vw, 28px);
    list-style: none;
}

.nav-links a {
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-gold);
    transition: width var(--transition-base), left var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
    left: 0;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ==========================================================================
   Music Button
   ========================================================================== */

.music-btn {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 950;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-spring), box-shadow var(--transition-base), background var(--transition-base);
    opacity: 0;
    pointer-events: none;
}

.music-btn.visible {
    opacity: 1;
    pointer-events: auto;
}

.music-btn:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow-strong);
    background: var(--color-primary-light);
}

.music-btn.playing .music-waves span {
    animation-play-state: running;
}

.music-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.music-icon--pause {
    display: none;
}

.music-btn.playing .music-icon--play {
    display: none;
}

.music-btn.playing .music-icon--pause {
    display: flex;
}

.music-waves {
    position: absolute;
    inset: -4px;
    border-radius: var(--radius-full);
    border: 2px solid var(--color-gold);
    opacity: 0.5;
}

.music-waves span {
    position: absolute;
    inset: -6px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-gold);
    animation: musicPulse 2s ease-out infinite;
    animation-play-state: paused;
}

.music-waves span:nth-child(2) { animation-delay: 0.6s; }
.music-waves span:nth-child(3) { animation-delay: 1.2s; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
    color: var(--color-cream);
}

.btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(215, 180, 106, 0.2) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn--primary:hover::before {
    opacity: 1;
}

.btn--glow {
    animation: btnGlow 3s ease-in-out infinite;
}

.btn--submit {
    width: 100%;
    margin-top: 8px;
}

.btn--submit.loading .btn-text {
    opacity: 0;
}

.btn--submit.loading .btn-loader {
    opacity: 1;
}

.btn-loader {
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2px solid rgba(247, 240, 232, 0.3);
    border-top-color: var(--color-cream);
    border-radius: 50%;
    opacity: 0;
    animation: spin 0.8s linear infinite;
}

.btn--directions svg {
    width: 20px;
    height: 20px;
}

.btn--gift {
    margin-top: 24px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-slide {
    position: absolute;
    inset: -10%;
    background-size: cover;
    background-position: center;
    will-change: transform;
}

.hero-bg-slide--1 {
    background-image: url('../images/gallery/PING5680.jpg');
    animation: kenBurns1 20s ease-in-out infinite alternate;
}

.hero-bg-slide--2 {
    background-image: url('../images/gallery/PING5418.jpg');
    opacity: 0;
    animation: kenBurns2 20s ease-in-out infinite alternate;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(
        180deg,
        rgba(44, 24, 16, 0.55) 0%,
        rgba(126, 30, 43, 0.45) 50%,
        rgba(44, 24, 16, 0.65) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 24px;
    color: var(--color-cream);
}

.hero-eyebrow {
    font-family: var(--font-serif);
    font-size: clamp(0.85rem, 2vw, 1rem);
    font-weight: 400;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-script);
    font-size: clamp(3.5rem, 12vw, 7rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 12px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-amp {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 0.45em;
    font-style: italic;
    color: var(--color-gold);
    margin: 0 0.15em;
    vertical-align: middle;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    font-weight: 300;
    letter-spacing: 0.08em;
    opacity: 0.9;
    margin-bottom: 28px;
}

.hero-divider {
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    margin: 0 auto 28px;
}

.hero-date {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 500;
    letter-spacing: 0.2em;
    margin-bottom: 8px;
}

.hero-time {
    font-family: var(--font-sans);
    font-size: 1rem;
    letter-spacing: 0.15em;
    opacity: 0.8;
    margin-bottom: 40px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(247, 240, 232, 0.5);
    border-radius: 12px;
    position: relative;
}

.hero-scroll span::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 2px;
    animation: scrollBounce 2s ease-in-out infinite;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.invitation {
    position: relative;
    z-index: 2;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section--welcome {
    background: var(--color-cream);
}

.section--couple {
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
}

.section--parents {
    background: var(--color-cream-dark);
}

.section--info {
    background: var(--color-primary);
    color: var(--color-cream);
}

.section--info .section-tag,
.section--info .section-title {
    color: var(--color-cream);
}

.section--info .ornament span:first-child,
.section--info .ornament span:last-child {
    background: var(--color-gold);
}

.section--countdown {
    background: var(--color-cream);
}

.section--story {
    background: linear-gradient(180deg, var(--color-cream-dark) 0%, var(--color-cream) 100%);
}

.section--gallery {
    background: var(--color-cream);
}

.section--rsvp {
    background: var(--color-cream-dark);
}

.section--gift {
    background: var(--color-cream);
    text-align: center;
}

.section--map {
    background: var(--color-cream-dark);
    padding-bottom: 0;
}

.section-header {
    text-align: center;
    margin-bottom: clamp(48px, 8vw, 72px);
}

.section-tag {
    display: block;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-gold-dark);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-script);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    color: var(--color-primary);
    line-height: 1.2;
}

.ornament {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.ornament span:first-child,
.ornament span:last-child {
    width: 60px;
    height: 1px;
    background: var(--color-gold);
}

.ornament span:nth-child(2) {
    font-size: 0.75rem;
    color: var(--color-gold);
}

/* ==========================================================================
   Welcome
   ========================================================================== */

.welcome-text {
    max-width: 680px;
    margin-inline: auto;
    text-align: center;
}

.welcome-text p {
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 400;
    line-height: 1.9;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.welcome-text p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Couple
   ========================================================================== */

.couple-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: clamp(24px, 5vw, 48px);
    max-width: 900px;
    margin-inline: auto;
}

.couple-card {
    text-align: center;
    padding: clamp(32px, 5vw, 48px) clamp(24px, 4vw, 40px);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(215, 180, 106, 0.2);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.couple-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-medium);
}

.couple-avatar {
    width: clamp(140px, 22vw, 180px);
    height: clamp(140px, 22vw, 180px);
    border-radius: var(--radius-full);
    object-fit: cover;
    margin: 0 auto 24px;
    border: 4px solid var(--color-gold);
    box-shadow: var(--shadow-gold);
    padding: 4px;
    background: var(--color-cream);
}

.couple-card h3 {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 3vw, 1.6rem);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.couple-role {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-gold-dark);
}

.couple-heart {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-gold);
    font-size: 1.5rem;
    box-shadow: var(--shadow-medium);
    animation: heartBeat 2s ease-in-out infinite;
}

/* ==========================================================================
   Parents
   ========================================================================== */

.parents-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(24px, 4vw, 40px);
    max-width: 860px;
    margin-inline: auto;
}

.parent-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(215, 180, 106, 0.15);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.parent-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.parent-card__header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 24px 32px;
    text-align: center;
    color: var(--color-cream);
}

.parent-card__icon {
    display: block;
    font-size: 1.25rem;
    color: var(--color-gold);
    margin-bottom: 8px;
}

.parent-card__header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.parent-card__body {
    padding: 32px;
    text-align: center;
}

.parent-name {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--color-text);
    margin-bottom: 8px;
}

.parent-name strong {
    font-weight: 600;
    color: var(--color-primary);
}

.parent-divider {
    width: 40px;
    height: 1px;
    background: var(--color-gold);
    margin: 20px auto;
}

.parent-address {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* ==========================================================================
   Info Cards
   ========================================================================== */

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(20px, 3vw, 32px);
}

.info-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(215, 180, 106, 0.25);
    border-radius: var(--radius-lg);
    padding: clamp(32px, 4vw, 48px) clamp(24px, 3vw, 32px);
    text-align: center;
    transition: transform var(--transition-base), background var(--transition-base);
}

.info-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.12);
}

.info-card__icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    color: var(--color-gold);
}

.info-card__icon svg {
    width: 100%;
    height: 100%;
}

.info-card h3 {
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: 16px;
}

.info-card__main {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 600;
    margin-bottom: 8px;
}

.info-card__sub {
    font-size: 0.95rem;
    opacity: 0.85;
    line-height: 1.6;
    margin-bottom: 8px;
}

.info-card__time {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-gold);
    letter-spacing: 0.1em;
}

.info-card__link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--color-gold);
    letter-spacing: 0.05em;
    transition: opacity var(--transition-fast);
}

.info-card__link:hover {
    opacity: 0.8;
    color: var(--color-gold-light);
}

/* ==========================================================================
   Countdown
   ========================================================================== */

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(12px, 3vw, 24px);
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: clamp(80px, 18vw, 120px);
    padding: clamp(20px, 4vw, 32px) clamp(16px, 3vw, 24px);
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(215, 180, 106, 0.2);
}

.countdown-value {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1;
    transition: transform var(--transition-fast);
}

.countdown-value.tick {
    animation: countTick 0.4s ease;
}

.countdown-label {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-top: 8px;
}

.countdown-sep {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-gold);
    font-weight: 300;
    animation: sepBlink 1s step-end infinite;
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
    position: relative;
    max-width: 720px;
    margin-inline: auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-gold), var(--color-primary), var(--color-gold));
}

.timeline-item {
    position: relative;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 4px;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--color-gold);
    border: 3px solid var(--color-cream);
    box-shadow: 0 0 0 3px var(--color-primary);
}

.timeline-content {
    background: var(--color-white);
    padding: clamp(24px, 4vw, 32px);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    border-left: 3px solid var(--color-gold);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.timeline-content:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-medium);
}

.timeline-date {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-gold-dark);
    background: rgba(215, 180, 106, 0.15);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.timeline-content h3 {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* ==========================================================================
   Gallery Masonry
   ========================================================================== */

.gallery-masonry {
    columns: 3;
    column-gap: 16px;
}

.gallery-item {
    break-inside: avoid;
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow), box-shadow var(--transition-base);
}

.gallery-item.loaded {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item:hover {
    box-shadow: var(--shadow-strong);
}

.gallery-item img {
    width: 100%;
    display: block;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(126, 30, 43, 0.6) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 20px;
}

.gallery-item:hover .gallery-item__overlay {
    opacity: 1;
}

.gallery-item__overlay svg {
    width: 32px;
    height: 32px;
    color: var(--color-cream);
}

.gallery-loading {
    text-align: center;
    padding: 48px;
    font-family: var(--font-serif);
    color: var(--color-text-muted);
    column-span: all;
}

/* ==========================================================================
   RSVP Form
   ========================================================================== */

.rsvp-form {
    max-width: 600px;
    margin-inline: auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-white);
    border: 1px solid rgba(126, 30, 43, 0.15);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(215, 180, 106, 0.2);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #C0392B;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.rsvp-success {
    max-width: 480px;
    margin: 48px auto 0;
    text-align: center;
    padding: 48px 32px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(215, 180, 106, 0.3);
}

.rsvp-success__icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    animation: heartBeat 1.5s ease-in-out infinite;
}

.rsvp-success h3 {
    font-family: var(--font-script);
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.rsvp-success p {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Gift Section & Modal
   ========================================================================== */

.gift-intro {
    max-width: 560px;
    margin-inline: auto;
    font-family: var(--font-serif);
    font-size: 1.15rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.gift-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.gift-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(44, 24, 16, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.gift-modal__content {
    position: relative;
    z-index: 1;
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    padding: clamp(32px, 5vw, 48px);
    max-width: 640px;
    width: 100%;
    box-shadow: var(--shadow-strong);
    transform: scale(0.9);
    opacity: 0;
    transition: transform var(--transition-spring), opacity var(--transition-base);
}

.gift-modal.active .gift-modal__content {
    transform: scale(1);
    opacity: 1;
}

.gift-modal__close {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 2rem;
    color: var(--color-text-muted);
    line-height: 1;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.gift-modal__close:hover {
    color: var(--color-primary);
    transform: rotate(90deg);
}

.gift-modal__title {
    font-family: var(--font-script);
    font-size: clamp(2rem, 5vw, 2.75rem);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 8px;
}

.gift-modal__subtitle {
    font-family: var(--font-serif);
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.gift-qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.gift-qr-card {
    text-align: center;
    padding: 24px 16px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    border: 1px solid rgba(215, 180, 106, 0.25);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.gift-qr-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
}

.gift-qr-card__frame {
    width: 160px;
    height: 160px;
    margin: 0 auto 16px;
    padding: 8px;
    border: 2px solid var(--color-gold);
    border-radius: var(--radius-sm);
    background: var(--color-white);
}

.gift-qr-card__frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gift-qr-card h4 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.gift-qr-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Map
   ========================================================================== */

.map-wrapper {
    position: relative;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.map-iframe {
    width: 100%;
    height: clamp(320px, 50vw, 480px);
    border: none;
    display: block;
    filter: grayscale(20%) contrast(1.05);
    transition: filter var(--transition-base);
}

.map-wrapper:hover .map-iframe {
    filter: grayscale(0%) contrast(1);
}

.map-info {
    background: var(--color-primary);
    color: var(--color-cream);
    padding: clamp(24px, 4vw, 40px);
    text-align: center;
}

.map-info h3 {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 600;
    margin-bottom: 8px;
}

.map-info p {
    opacity: 0.85;
    margin-bottom: 20px;
}

.btn--directions {
    background: var(--color-gold);
    color: var(--color-primary-dark);
}

.btn--directions:hover {
    background: var(--color-gold-light);
    color: var(--color-primary-dark);
}

/* ==========================================================================
   Lightbox
   ========================================================================== */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: rgba(0, 0, 0, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 2.5rem;
    color: var(--color-cream);
    z-index: 10;
    opacity: 0.7;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.lightbox-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    color: var(--color-cream);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.lightbox-nav svg {
    width: 28px;
    height: 28px;
}

.lightbox-nav:hover {
    background: rgba(215, 180, 106, 0.3);
    transform: translateY(-50%) scale(1.08);
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-image {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    transform: scale(0.85);
    opacity: 0;
    transition: transform var(--transition-spring), opacity var(--transition-base);
}

.lightbox.active .lightbox-image.visible {
    transform: scale(1);
    opacity: 1;
}

.lightbox-counter {
    margin-top: 16px;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: var(--color-primary-dark);
    color: var(--color-cream);
    text-align: center;
    padding: clamp(48px, 8vw, 72px) 24px;
}

.footer-names {
    font-family: var(--font-script);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 8px;
}

.footer-date {
    font-family: var(--font-serif);
    font-size: 1rem;
    letter-spacing: 0.2em;
    opacity: 0.8;
    margin-bottom: 24px;
}

.footer-divider {
    width: 60px;
    height: 1px;
    background: var(--color-gold);
    margin: 0 auto 24px;
}

.footer-copy {
    font-size: 0.85rem;
    opacity: 0.6;
    letter-spacing: 0.05em;
}