:root {
    --bg-color: #f6f3eb;
    --text-color: #3b3632;
    
    --env-back: #dccbb9;
    --env-side: #ebded0;
    --env-bottom: #e2d2c2;
    --env-top: #e7d8c7;
    
    --card-bg: #fff;
    --card-text: #3b3632;
    --card-border: #eee3d5;
    
    --primary: #c28d75;
    --primary-hover: #b07e66;
    
    --shadow-color: rgba(90, 75, 60, 0.15);
    
    --env-width: 60vw;
    --env-height: 50vh;
}

[data-theme="dark"] {
    --bg-color: #1a1816;
    --text-color: #e8e3dc;
    
    --env-back: #3a322c;
    --env-side: #4f463e;
    --env-bottom: #453c35;
    --env-top: #554b42;
    
    --card-bg: #2d2824;
    --card-text: #e8e3dc;
    --card-border: #443c35;
    
    --primary: #d4a373;
    --primary-hover: #e5b382;
    
    --shadow-color: rgba(0, 0, 0, 0.6);
}

@media (max-width: 768px) {
    :root {
        --env-width: 88vw;
        --env-height: 22vh; /* Reduced from 35vh */
    }
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
    scroll-behavior: smooth;
}

.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-color);
    cursor: pointer;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px var(--shadow-color);
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px var(--shadow-color);
}

.theme-toggle svg {
    width: 22px;
    height: 22px;
}

.scroll-container {
    height: 400vh; /* Plenty of scrolling runway */
    position: relative;
    background: var(--bg-color);
}

.scene {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    perspective: 1200px;
    z-index: 10;
    opacity: var(--scene-opacity, 1);
    transform: translateY(var(--scene-y, 0));
    pointer-events: var(--scene-pointer-events, auto);
}

.instruction-text {
    font-family: 'Playfair Display', serif;
    font-size: 2.2vw; /* Reduced from 3vw */
    margin-bottom: 4vh;
    font-style: italic;
    opacity: 0.8;
    color: var(--text-color);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.open-scene .instruction-text {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}

.envelope-group {
    position: relative;
    width: var(--env-width);
    height: var(--env-height);
    /* Remove transition for direct scrubbing */
    transform: translateY(calc(var(--scene-y, 0) + 10vh)) scale(var(--envelope-scale, 1));
}

.flap-back {
    position: absolute;
    inset: 0;
    background: var(--env-back);
    border-radius: 6px;
    z-index: 1;
    box-shadow: 0 15px 35px var(--shadow-color);
}

.flap-left {
    position: absolute;
    left: 0; top: 0;
    width: 58%; height: 100%;
    background: var(--env-side);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
    z-index: 3;
    border-radius: 6px 0 0 6px;
}

.flap-right {
    position: absolute;
    right: 0; top: 0;
    width: 58%; height: 100%;
    background: var(--env-side);
    clip-path: polygon(100% 0, 0 50%, 100% 100%);
    z-index: 3;
    border-radius: 0 6px 6px 0;
}

.flap-bottom {
    position: absolute;
    left: 0; bottom: 0;
    width: 100%; height: 62%;
    background: var(--env-bottom);
    clip-path: polygon(0 100%, 50% 0, 100% 100%);
    z-index: 4;
    border-radius: 0 0 6px 6px;
}

.flap-top {
    position: absolute;
    left: 0; top: 0;
    width: 100%; height: 65%;
    background: var(--env-top);
    clip-path: polygon(0 0, 50% 100%, 100% 0);
    z-index: var(--flap-z, 5);
    transform-origin: top;
    /* Use scrubbed CSS Variable */
    transform: rotateX(var(--flap-angle, 0deg));
    border-radius: 6px 6px 0 0;
}

/* Pseudo-elements for subtle drop shadows to make flaps distinct */
.flap-left::after, .flap-right::after, .flap-top::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.03);
    pointer-events: none;
}

.pocket-mask {
    position: absolute;
    inset: 0;
    overflow: var(--pocket-overflow, hidden);
    border-radius: 6px;
    pointer-events: none;
}

.card {
    position: absolute;
    left: 50%;
    bottom: calc(var(--env-height) * 0.05);
    
    width: calc(var(--env-width) * 0.9); /* Slightly wider relative to envelope */
    min-height: calc(var(--env-height) * 1.1); /* Reduced height ratio to make it landscape */
    height: max-content;
    margin-left: calc(var(--env-width) * -0.45);
    
    background: var(--card-bg);
    color: var(--card-text);
    z-index: var(--card-z, 2);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-color);
    transform-origin: center bottom;
    box-sizing: border-box;
    transition: background-color 0.4s ease, color 0.4s ease;
    
    /* Scrubs directly - now using vh for better scaling */
    transform: translateY(var(--card-y, 0)) scale(var(--card-scale, 0.6));
    opacity: 1; 
    pointer-events: var(--card-pointer-events, none);
}

.card-inner {
    padding: 4vh 3vw;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    text-align: center;
    position: relative;
    background-image: 
        radial-gradient(var(--card-border) 1px, transparent 1px),
        radial-gradient(var(--card-border) 1px, transparent 1px);
    background-size: 4vw 4vw;
    background-position: 0 0, 2vw 2vw;
}

.card-inner::before {
    content: '';
    position: absolute;
    inset: 0.5rem;
    border: 1px solid var(--primary);
    border-radius: 4px;
    opacity: 0.3;
    pointer-events: none;
}

.card-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.82rem, 2.889vw, 2.6rem); /* Reduced from 3.2rem */
    font-style: italic;
    color: var(--primary);
    margin-bottom: 0.3rem;
    font-weight: 500;
}

.card-header h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--card-text); /* Theme-aware color */
    opacity: 0.7;
    font-weight: 500;
}

.card-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: clamp(1.2rem, 2.222vw, 2rem);
    margin: clamp(0.9rem, 1.667vw, 1.5rem) 0;
}

.greeting {
    font-family: 'Playfair Display', serif;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--card-text); /* Theme-aware color */
    padding: 0 clamp(0.6rem, 1.111vw, 1rem);
    font-style: italic;
}

.details {
    display: flex;
    flex-direction: row; /* Layout in a row for landscape cards */
    justify-content: center;
    gap: clamp(1.5rem, 2.778vw, 2.5rem);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.detail-item .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary);
    font-weight: 600;
}

.detail-item .value {
    font-size: 1.2rem;
    font-weight: 500;
    font-family: 'Playfair Display', serif;
    color: var(--card-text); /* Explicitly set for contrast */
}

.detail-item .sub-value {
    font-size: 0.8rem;
    opacity: 0.7;
    color: var(--card-text);
}

.card-footer {
    position: relative;
    z-index: 10;
}

.rsvp-btn {
    background-color: var(--primary);
    color: #fff;
    border: none;
    padding: clamp(0.6rem, 1.111vw, 1rem) clamp(1.5rem, 2.778vw, 2.5rem);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
    box-shadow: 0 8px 20px rgba(194, 141, 117, 0.3);
}

.rsvp-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(194, 141, 117, 0.4);
}

.confetti-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 50;
    overflow: hidden;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: var(--primary);
    animation: fall 3s ease-in-out forwards;
}

@keyframes fall {
    0% {
        transform: translateY(-100px) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Scale typography for smaller screens cleanly */
@media (max-width: 650px) {
    .card-inner {
        padding: clamp(0.9rem, 1.667vw, 1.5rem) clamp(0.6rem, 1.111vw, 1rem);
    }
    .details {
        flex-direction: column;
        gap: clamp(0.6rem, 1.111vw, 1rem);
    }
    .card-header h2 { font-size: clamp(1.54rem, 2.444vw, 2.2rem); }
    .card-header h3 { font-size: 0.7rem; letter-spacing: 2px; }
    .greeting { font-size: 0.95rem; }
    .detail-item .value { font-size: 1.1rem; }
    .detail-item .label { font-size: 0.65rem; }
    .rsvp-btn { padding: 0.8rem clamp(1.2rem, 2.222vw, 2rem); font-size: 0.9rem; }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 1s ease 1s;
    z-index: 10;
    color: var(--text-color);
}

.scroll-indicator span {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0.7;
}

.scroll-indicator svg {
    width: 20px;
    height: 20px;
    animation: bounce 2s infinite;
    opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.open-scene .scroll-indicator {
    opacity: 1;
}

/* Sections */
section {
    min-height: 100vh;
    padding: clamp(3.6rem, 6.667vw, 6rem) 10%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-color);
    position: relative;
    z-index: 20; 
}

.details-section {
    background-color: var(--card-bg); 
}

.section-content {
    max-width: 800px;
    text-align: center;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.96rem, 3.111vw, 2.8rem); /* Reduced from 3.5rem */
    font-style: italic;
    color: var(--primary);
    margin-bottom: clamp(0.72rem, 1.333vw, 1.2rem);
}

.section-text {
    font-size: 1.05rem; /* Reduced from 1.2rem */
    line-height: 1.7;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: clamp(1.8rem, 3.333vw, 3rem);
    max-width: 750px;
    text-align: center;
}

/* Info Cards */
.info-card {
    background: var(--bg-color);
    padding: clamp(1.5rem, 2.778vw, 2.5rem) clamp(1.2rem, 2.222vw, 2rem);
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: transform 0.3s ease;
    border: 1px solid var(--card-border);
}

.info-card:hover {
    transform: translateY(-10px);
}

.info-card .icon {
    font-size: clamp(1.75rem, 2.778vw, 2.5rem);
    margin-bottom: clamp(0.6rem, 1.111vw, 1rem);
}

.info-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.05rem, 1.667vw, 1.5rem);
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.info-card p {
    font-size: 1rem;
    line-height: 1.5;
    opacity: 0.8;
}

/* Photobooth Gallery */
.photobooth-section {
    align-items: center;
}

.gallery {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: clamp(1.8rem, 3.333vw, 3rem);
    margin-top: clamp(1.2rem, 2.222vw, 2rem);
    width: 100%;
}

.photo-frame {
    background: #fff;
    padding: 15px 15px clamp(36px, 4.167vw, 60px) 15px;
    border-radius: 4px;
    box-shadow: 0 15px 35px var(--shadow-color);
    transition: transform 0.4s cubic-bezier(0.34, 1.3, 0.64, 1), box-shadow 0.4s ease;
    position: relative;
    cursor: pointer;
}

.photo-frame:nth-child(1) { transform: rotate(-4deg); }
.photo-frame:nth-child(2) { transform: rotate(2deg) translateY(-20px); }
.photo-frame:nth-child(3) { transform: rotate(-2deg); }

.photo-frame:hover {
    transform: scale(1.05) rotate(0deg) !important;
    box-shadow: 0 25px 50px var(--shadow-color);
    z-index: 10;
}

.photo-frame img {
    width: 280px;
    height: 320px;
    object-fit: cover;
    border-radius: 2px;
    filter: sepia(0.2) contrast(1.1) saturate(1.2);
}

[data-theme="dark"] .photo-frame {
    background: #e6ddcf;
}

.photo-caption {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 1.2rem;
    color: #333; 
    text-align: center;
    position: absolute;
    bottom: 20px;
}

/* Scroll Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.25, 1, 0.5, 1), transform 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }

/* Itinerary Section */
.itinerary-section {
    background: linear-gradient(145deg, var(--bg-color), var(--env-side));
    min-height: auto; /* Allow it to be more compact */
    padding-top: clamp(2.4rem, 4.444vw, 4rem);
    padding-bottom: clamp(2.4rem, 4.444vw, 4rem);
}

.timeline {
    position: relative;
    max-width: 650px; /* Reduced from 800px for a tighter feel */
    margin: 0 auto;
    padding-left: clamp(1.2rem, 2.222vw, 2rem);
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 4.5rem;
    width: 2px;
    background: var(--card-border);
}

.timeline-item {
    position: relative;
    margin-bottom: clamp(1.8rem, 3.333vw, 3rem);
    display: flex;
    align-items: flex-start;
}

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

.timeline-time {
    width: 4rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.95rem;
    padding-top: 0.5rem;
    text-align: right;
    margin-right: clamp(1.2rem, 2.222vw, 2rem);
}

.timeline-marker {
    position: absolute;
    left: 4.5rem;
    transform: translateX(-50%);
    top: 0.5rem;
    width: 12px; /* Slightly smaller marker */
    height: 12px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 3px solid var(--primary);
    z-index: 2;
    transition: background-color 0.4s ease, transform 0.4s ease;
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    transform: translateX(-50%) scale(1.3);
}

.timeline-content {
    flex: 1;
    background: var(--card-bg);
    padding: clamp(0.72rem, 1.333vw, 1.2rem) clamp(0.9rem, 1.667vw, 1.5rem); /* More compact padding */
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-color);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease;
}

.timeline-item:hover .timeline-content {
    transform: translateX(10px);
}

.timeline-content h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    margin-bottom: 0;
    opacity: 0.85;
    line-height: 1.6;
}

/* Ensure mobile looks good */
@media (max-width: 600px) {
    .timeline { padding-left: 0; }
    .timeline::before { left: 1rem; }
    .timeline-item { flex-direction: column; position: relative; }
    .timeline-time { 
        text-align: left; 
        margin-right: 0; 
        margin-left: clamp(1.8rem, 3.333vw, 3rem); 
        margin-bottom: 0.5rem; 
        padding-top: 0;
        width: auto;
    }
    .timeline-marker { left: 1rem; top: 0.2rem; }
    .timeline-content { margin-left: clamp(0.9rem, 1.667vw, 1.5rem); width: calc(100% - 1.5rem); }
}

/* Photo Modal / Lightbox */
.photo-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.photo-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    max-width: 90%;
    max-height: 80vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.34, 1.3, 0.64, 1);
}

.photo-modal.active .modal-content {
    transform: scale(1);
}

.modal-content img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    border: 4px solid #fff;
    background: #fff;
}

.modal-caption {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    color: #fff;
    font-size: clamp(1.26rem, 2.000vw, 1.8rem);
    margin-top: clamp(0.9rem, 1.667vw, 1.5rem);
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.modal-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: none;
    border: none;
    color: #fff;
    font-size: clamp(2.1rem, 3.333vw, 3rem);
    cursor: pointer;
    line-height: 1;
    transition: transform 0.3s ease;
}

.modal-close:hover {
    transform: scale(1.2) rotate(90deg);
}

/* Itinerary Improvements */
.itinerary-icon {
    font-size: clamp(1.26rem, 2.000vw, 1.8rem);
    color: var(--text-color);
    opacity: 0.6; /* More subtle and unified with the design */
    filter: drop-shadow(0 2px 4px var(--shadow-color));
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.timeline-item:hover .itinerary-icon {
    opacity: 1;
    transform: scale(1.1);
    color: var(--primary); /* subtle color shift on hover only */
}

.timeline-content i {
    filter: drop-shadow(0 2px 5px var(--shadow-color));
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary);
    box-shadow: 0 10px 30px var(--shadow-color);
}

/* Thank You Section */
.thank-you-section {
    background: var(--card-bg);
    padding: 10vh 5%;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.thank-you-section .section-title {
    font-size: clamp(2.45rem, 3.889vw, 3.5rem); /* Reduced from 4.5rem */
    margin-bottom: clamp(0.9rem, 1.667vw, 1.5rem);
}

.signature p {
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem; /* Significantly reduced for a delicate feel */
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.7;
}

.signature h4 {
    font-family: 'Playfair Display', serif;
    font-style: italic;
    color: var(--primary);
    font-size: clamp(1.26rem, 2.000vw, 1.8rem); /* Reduced from 2.8rem to small text */
    font-weight: 400;
}

@media (max-width: 768px) {
    .thank-you-section .section-title {
        font-size: clamp(2.1rem, 3.333vw, 3rem);
    }
    .signature h4 {
        font-size: clamp(1.75rem, 2.778vw, 2.5rem);
    }
}


/* Added for customisable content */
[hidden] { display: none !important; }
.map-link { display: block; margin-top: .6rem; font-size: .85rem; color: inherit; text-decoration: underline; opacity: .8; }
.rsvp-btn { display: inline-block; margin-top: clamp(0.9rem, 1.667vw, 1.5rem); text-decoration: none; }