:root {
    --bg-emerald-deep: #02120b;
    --bg-emerald-dark: #031b11;
    --emerald-primary: #043825;
    --emerald-light: #065438;
    --gold-primary: #d4af37;
    --gold-light: #f3e5ab;
    --gold-dark: #aa841c;
    --text-light: #f0f6f3;
    --text-muted: #a6c0b4;
    --glass-bg: rgba(2, 22, 14, 0.28);
    --glass-border: rgba(212, 175, 55, 0.22);
    --glass-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Montserrat', Helvetica, sans-serif;
}

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

body {
    background-color: var(--bg-emerald-deep);
    color: var(--text-light);
    font-family: var(--font-sans);
    overflow: hidden;
    height: 100vh;
    height: 100dvh;
    width: 100vw;
    position: relative;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior-y: none;
    touch-action: none;
    -webkit-font-smoothing: antialiased;
}

/* Disable transitions during initial page preloading to prevent jumps */
.preload,
.preload * {
    transition: none !important;
}

/* Forest Background, Container and Content fade transitions on load */
.forest-bg,
.forest-container,
.content-wrapper,
.music-toggle-btn {
    transition: opacity 1.5s cubic-bezier(0.25, 1, 0.4, 1), visibility 1.5s cubic-bezier(0.25, 1, 0.4, 1);
}

/* Preloader Overlay (Full screen gold & emerald magical cover) */
.preloader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background-color: var(--bg-emerald-deep);
    background: radial-gradient(circle at 50% 50%, var(--bg-emerald-dark) 0%, var(--bg-emerald-deep) 100%);
    z-index: 9999; /* Higher than all text, canvases, and overlays */
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1.0s cubic-bezier(0.25, 1, 0.4, 1), visibility 1.0s;
    opacity: 1;
    visibility: visible;
}

.preloader-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.preloader-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 25px;
}

.spinner-svg {
    width: 100%;
    height: 100%;
    animation: spin 1.8s linear infinite;
}

.preloader-sparkle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    animation: pulse 1.8s ease-in-out infinite;
}

.preloader-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 300;
    color: #ffffff;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.preloader-subtitle {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--gold-primary);
    animation: pulseText 1.8s ease-in-out infinite alternate;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

@keyframes pulseText {
    0% { opacity: 0.4; }
    100% { opacity: 0.95; }
}

/* Ambient Background Gradient */
.forest-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 55%, var(--bg-emerald-dark) 0%, var(--bg-emerald-deep) 100%);
    z-index: 1;
}

/* Fireflies Canvas */
#fireflies-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

/* Foreground Fireflies Canvas (sits in front of everything) */
#fireflies-fg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9; /* Sits in front of trees, cards, and text! */
    pointer-events: none; /* Allows mouse interactions to pass through to buttons/forms */
}

/* Forest Canvas Container & Tree Layers */
.forest-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none; /* Allows clicks to go through to background card triggers, though we handle click triggers on body/cards too */
}

.tree-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-between;
}

.tree-group {
    position: absolute;
    bottom: 0;
    height: 100vh;
    width: 60vw; /* Wide enough for overlap */
    pointer-events: auto; /* Allow clicking on trees */
    cursor: pointer;
}

.tree-group.left-side {
    left: 0;
    transform-origin: bottom left;
    transform: translateX(0);
    will-change: transform;
}

.tree-group.right-side {
    right: 0;
    transform-origin: bottom right;
    transform: translateX(0);
    will-change: transform;
}

.tree {
    position: absolute;
    bottom: -5vh;
    height: 110vh; /* Exceed screen heights to avoid gaps */
    width: auto;
    aspect-ratio: 1 / 1; /* Match square PNG assets to completely prevent layout shifts on load */
    object-fit: contain;
    user-select: none;
    pointer-events: none;
    will-change: transform;
}

/* Foreground Trees Specific Layout & Depth */
.fg-layer .tree-group.left-side .tree-1 {
    right: -10vw;
    bottom: -6vh;
    height: 115vh;
    filter: brightness(0.68) contrast(1.1) drop-shadow(0 15px 30px rgba(0, 0, 0, 0.7));
    transform: scaleX(-1);
    z-index: 2;
}
.fg-layer .tree-group.left-side .tree-2 {
    right: -24vw;
    bottom: -8vh;
    height: 122vh;
    filter: brightness(0.6) contrast(1.15) drop-shadow(0 15px 30px rgba(0, 0, 0, 0.7));
    z-index: 1;
}
.fg-layer .tree-group.right-side .tree-1 {
    left: -10vw;
    bottom: -6vh;
    height: 115vh;
    filter: brightness(0.68) contrast(1.1) drop-shadow(0 15px 30px rgba(0, 0, 0, 0.7));
    z-index: 2;
}
.fg-layer .tree-group.right-side .tree-2 {
    left: -24vw;
    bottom: -8vh;
    height: 122vh;
    filter: brightness(0.6) contrast(1.15) drop-shadow(0 15px 30px rgba(0, 0, 0, 0.7));
    transform: scaleX(-1);
    z-index: 1;
}

/* Midground Trees Specific Layout & Depth */
.md-layer .tree-group.left-side .tree-1 {
    right: 8vw;
    bottom: -4vh;
    height: 96vh;
    filter: brightness(0.38) contrast(1.05);
}
.md-layer .tree-group.left-side .tree-2 {
    right: -4vw;
    bottom: -4vh;
    height: 106vh;
    filter: brightness(0.32) contrast(1.08);
    transform: scaleX(-1);
}
.md-layer .tree-group.left-side .tree-3 {
    right: -16vw;
    bottom: -4vh;
    height: 102vh;
    filter: brightness(0.34) contrast(1.05);
}
.md-layer .tree-group.right-side .tree-1 {
    left: 8vw;
    bottom: -4vh;
    height: 96vh;
    filter: brightness(0.38) contrast(1.05) scaleX(-1);
}
.md-layer .tree-group.right-side .tree-2 {
    left: -4vw;
    bottom: -4vh;
    height: 106vh;
    filter: brightness(0.32) contrast(1.08);
}
.md-layer .tree-group.right-side .tree-3 {
    left: -16vw;
    bottom: -4vh;
    height: 102vh;
    filter: brightness(0.34) contrast(1.05) scaleX(-1);
}

/* Background Trees Specific Layout & Depth */
.bg-layer .tree-group.left-side .tree-1 {
    right: 22vw;
    bottom: -2vh;
    height: 80vh;
    filter: brightness(0.24) contrast(1.02);
    opacity: 0.95;
}
.bg-layer .tree-group.left-side .tree-2 {
    right: 12vw;
    bottom: -2vh;
    height: 88vh;
    filter: brightness(0.2) contrast(1.02);
    transform: scaleX(-1);
    opacity: 0.95;
}
.bg-layer .tree-group.left-side .tree-3 {
    right: 0vw;
    bottom: -2vh;
    height: 94vh;
    filter: brightness(0.18) contrast(1.02);
    opacity: 0.95;
}
.bg-layer .tree-group.left-side .tree-4 {
    right: -12vw;
    bottom: -2vh;
    height: 98vh;
    filter: brightness(0.16) contrast(1.02);
    transform: scaleX(-1);
    opacity: 0.95;
}
.bg-layer .tree-group.right-side .tree-1 {
    left: 22vw;
    bottom: -2vh;
    height: 80vh;
    filter: brightness(0.24) contrast(1.02) scaleX(-1);
    opacity: 0.95;
}
.bg-layer .tree-group.right-side .tree-2 {
    left: 12vw;
    bottom: -2vh;
    height: 88vh;
    filter: brightness(0.2) contrast(1.02);
    opacity: 0.95;
}
.bg-layer .tree-group.right-side .tree-3 {
    left: 0vw;
    bottom: -2vh;
    height: 94vh;
    filter: brightness(0.18) contrast(1.02) scaleX(-1);
    opacity: 0.95;
}
.bg-layer .tree-group.right-side .tree-4 {
    left: -12vw;
    bottom: -2vh;
    height: 98vh;
    filter: brightness(0.16) contrast(1.02);
    opacity: 0.95;
}

/* Volumetric 3D Forest Floor (Individual Plants Layout) */
.forest-floor {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100vw;
    height: 18vh;
    pointer-events: none;
}

.ground-plant {
    position: absolute;
    bottom: -4vh;
    height: 15vh;
    width: auto;
    object-fit: contain;
    user-select: none;
    pointer-events: none;
    will-change: transform;
    transform-origin: bottom center;
}

/* Ground Plants Organic Wind Sway Animations */
.ground-plant {
    animation: groundPlantSway 7.2s ease-in-out infinite alternate;
}

.ground-plant:nth-child(even) {
    animation: groundPlantSwayAlt 5.6s ease-in-out infinite alternate 0.6s;
}

@keyframes groundPlantSway {
    0% { transform: rotate(0deg) skewX(0deg); }
    100% { transform: rotate(3deg) skewX(1.5deg); }
}

@keyframes groundPlantSwayAlt {
    0% { transform: rotate(0deg) skewX(0deg) scaleX(-1); }
    100% { transform: rotate(-3deg) skewX(-1.5deg) scaleX(-1); } /* Preserve mirror scaleX(-1) */
}

/* Layer 1: Volumetric deep background layer (under bg trees) */
.forest-floor-deep { z-index: 2.5; }
.forest-floor-deep .ground-plant {
    height: 9vh;
    bottom: -3vh;
    filter: brightness(0.12) contrast(1.0) blur(2.5px);
}
.forest-floor-deep .plant-1 { left: 4vw; }
.forest-floor-deep .plant-2 { left: 21vw; }
.forest-floor-deep .plant-3 { left: 39vw; }
.forest-floor-deep .plant-4 { left: 56vw; }
.forest-floor-deep .plant-5 { left: 74vw; }
.forest-floor-deep .plant-6 { left: 88vw; }

/* Layer 2: Volumetric middle layer (between bg and md trees) */
.forest-floor-mid { z-index: 3.2; }
.forest-floor-mid .ground-plant {
    height: 11.5vh;
    bottom: -3.8vh;
    filter: brightness(0.2) contrast(1.05) blur(1.3px);
}
.forest-floor-mid .plant-1 { left: 8vw; }
.forest-floor-mid .plant-2 { left: 27vw; }
.forest-floor-mid .plant-3 { left: 46vw; }
.forest-floor-mid .plant-4 { left: 63vw; }
.forest-floor-mid .plant-5 { left: 79vw; }
.forest-floor-mid .plant-6 { left: 93vw; }

/* Layer 3: Volumetric back foreground layer (behind fg trees) */
.forest-floor-back { z-index: 3.7; }
.forest-floor-back .ground-plant {
    height: 14.5vh;
    bottom: -4.5vh;
    filter: brightness(0.32) contrast(1.1) blur(0.4px);
}
.forest-floor-back .plant-1 { left: 13vw; }
.forest-floor-back .plant-2 { left: 31vw; }
.forest-floor-back .plant-3 { left: 49vw; }
.forest-floor-back .plant-4 { left: 67vw; }
.forest-floor-back .plant-5 { left: 84vw; }

/* Layer 4: Volumetric front foreground layer (in front of all trees) */
.forest-floor-front { z-index: 3.9; }
.forest-floor-front .ground-plant {
    height: 17.5vh;
    bottom: -5.5vh;
    filter: brightness(0.5) contrast(1.25) drop-shadow(0 -6px 14px rgba(0, 0, 0, 0.6));
}
.forest-floor-front .plant-1 { left: 3vw; }
.forest-floor-front .plant-2 { left: 24vw; }
.forest-floor-front .plant-3 { left: 48vw; }
.forest-floor-front .plant-4 { left: 70vw; }
.forest-floor-front .plant-5 { left: 88vw; }

/* CSS Parallax Wind Sway Animation on wrappers */
.tree-sway-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    will-change: transform;
}
.tree-group.left-side .tree-sway-wrapper {
    transform-origin: bottom left;
}
.tree-group.right-side .tree-sway-wrapper {
    transform-origin: bottom right;
}

/* Foreground trees: slow, wide sway */
.fg-layer .tree-group.left-side {
    transition: transform 2.0s cubic-bezier(0.25, 1, 0.4, 1);
}
.fg-layer .tree-group.left-side .tree-sway-wrapper {
    animation: windSwayLeftFG 7.5s ease-in-out infinite alternate;
}
.fg-layer .tree-group.right-side {
    transition: transform 2.0s cubic-bezier(0.25, 1, 0.4, 1);
}
.fg-layer .tree-group.right-side .tree-sway-wrapper {
    animation: windSwayRightFG 7.5s ease-in-out infinite alternate-reverse;
}

/* Midground trees: medium sway */
.md-layer .tree-group.left-side {
    transition: transform 2.2s cubic-bezier(0.25, 1, 0.4, 1);
}
.md-layer .tree-group.left-side .tree-sway-wrapper {
    animation: windSwayLeftMD 5.8s ease-in-out infinite alternate 1.2s;
}
.md-layer .tree-group.right-side {
    transition: transform 2.2s cubic-bezier(0.25, 1, 0.4, 1);
}
.md-layer .tree-group.right-side .tree-sway-wrapper {
    animation: windSwayRightMD 5.8s ease-in-out infinite alternate-reverse 0.5s;
}

/* Background trees: fast, subtle sway */
.bg-layer .tree-group.left-side {
    transition: transform 2.5s cubic-bezier(0.25, 1, 0.4, 1);
}
.bg-layer .tree-group.left-side .tree-sway-wrapper {
    animation: windSwayLeftBG 4.5s ease-in-out infinite alternate 0.3s;
}
.bg-layer .tree-group.right-side {
    transition: transform 2.5s cubic-bezier(0.25, 1, 0.4, 1);
}
.bg-layer .tree-group.right-side .tree-sway-wrapper {
    animation: windSwayRightBG 4.5s ease-in-out infinite alternate-reverse 0.9s;
}

/* Parallax Wind Sway Keyframes */
@keyframes windSwayLeftFG {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(2.4deg) skewX(1.4deg) translateX(24px); }
}
@keyframes windSwayRightFG {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(-2.4deg) skewX(-1.4deg) translateX(-24px); }
}
@keyframes windSwayLeftMD {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(1.6deg) skewX(1.0deg) translateX(16px); }
}
@keyframes windSwayRightMD {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(-1.6deg) skewX(-1.0deg) translateX(-16px); }
}
@keyframes windSwayLeftBG {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(0.8deg) skewX(0.5deg) translateX(8px); }
}
@keyframes windSwayRightBG {
    0% { transform: rotate(0deg) skewX(0deg) translateX(0); }
    100% { transform: rotate(-0.8deg) skewX(-0.5deg) translateX(-8px); }
}

/* ========================================================
   PARALLAX PARTING FOREST STATES
   Depending on step, we move trees outwards.
   ======================================================== */

/* State 0: Welcome Screen (Trees fully closed) */
body[data-nav-step="0"] .fg-layer .tree-group.left-side { transform: translateX(0); }
body[data-nav-step="0"] .fg-layer .tree-group.right-side { transform: translateX(0); }
body[data-nav-step="0"] .md-layer .tree-group.left-side { transform: translateX(0); }
body[data-nav-step="0"] .md-layer .tree-group.right-side { transform: translateX(0); }
body[data-nav-step="0"] .bg-layer .tree-group.left-side { transform: translateX(0); }
body[data-nav-step="0"] .bg-layer .tree-group.right-side { transform: translateX(0); }

/* State 1: Wedding Invitation details (Parted slightly) */
body[data-nav-step="1"] .fg-layer .tree-group.left-side { transform: translateX(-68%); }
body[data-nav-step="1"] .fg-layer .tree-group.right-side { transform: translateX(68%); }
body[data-nav-step="1"] .md-layer .tree-group.left-side { transform: translateX(-40%); }
body[data-nav-step="1"] .md-layer .tree-group.right-side { transform: translateX(40%); }
body[data-nav-step="1"] .bg-layer .tree-group.left-side { transform: translateX(-15%); }
body[data-nav-step="1"] .bg-layer .tree-group.right-side { transform: translateX(15%); }

/* State 2: Dress Code (Parted slightly more) */
body[data-nav-step="2"] .fg-layer .tree-group.left-side { transform: translateX(-78%); }
body[data-nav-step="2"] .fg-layer .tree-group.right-side { transform: translateX(78%); }
body[data-nav-step="2"] .md-layer .tree-group.left-side { transform: translateX(-50%); }
body[data-nav-step="2"] .md-layer .tree-group.right-side { transform: translateX(50%); }
body[data-nav-step="2"] .bg-layer .tree-group.left-side { transform: translateX(-24%); }
body[data-nav-step="2"] .bg-layer .tree-group.right-side { transform: translateX(24%); }

/* State 3: RSVP Form / Success (Parted even more, but keeping trees fully visible at the sides) */
body[data-nav-step="3"] .fg-layer .tree-group.left-side,
body[data-nav-step="4"] .fg-layer .tree-group.left-side { transform: translateX(-88%); }
body[data-nav-step="3"] .fg-layer .tree-group.right-side,
body[data-nav-step="4"] .fg-layer .tree-group.right-side { transform: translateX(88%); }

body[data-nav-step="3"] .md-layer .tree-group.left-side,
body[data-nav-step="4"] .md-layer .tree-group.left-side { transform: translateX(-60%); }
body[data-nav-step="3"] .md-layer .tree-group.right-side,
body[data-nav-step="4"] .md-layer .tree-group.right-side { transform: translateX(60%); }

body[data-nav-step="3"] .bg-layer .tree-group.left-side,
body[data-nav-step="4"] .bg-layer .tree-group.left-side { transform: translateX(-34%); }
body[data-nav-step="3"] .bg-layer .tree-group.right-side,
body[data-nav-step="4"] .bg-layer .tree-group.right-side { transform: translateX(34%); }

/* ========================================================
   CONTENT CARDS SYSTEM (Glassmorphism + Elegant Typography)
   ======================================================== */
.content-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 500px;
    height: auto;
    max-height: 85vh;
    max-height: 85dvh;
    z-index: 4;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none; /* Keeps cards container clear so user can click forest directly, but card kids should enable pointer events */
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px) saturate(110%);
    -webkit-backdrop-filter: blur(10px) saturate(110%);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
    padding: 40px 30px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    opacity: 0;
    transform: scale(0.92) translateY(20px);
    pointer-events: none;
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 1, 0.4, 1), visibility 0.8s;
    visibility: hidden;
    position: absolute;
    overflow-y: auto;
    max-height: 82vh;
    max-height: 82dvh;
    overscroll-behavior-y: contain;
    touch-action: pan-y;
}

/* Custom Scrollbar for scrollable cards on smaller heights */
.card::-webkit-scrollbar {
    width: 5px;
}
.card::-webkit-scrollbar-track {
    background: transparent;
}
.card::-webkit-scrollbar-thumb {
    background: rgba(212, 175, 55, 0.2);
    border-radius: 10px;
}
.card::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 175, 55, 0.5);
}

.card.active {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
    visibility: visible;
    position: relative;
    z-index: 5;
}

/* Card Decorative Ornament */
.card-ornament {
    width: 120px;
    margin-bottom: 15px;
    opacity: 0.85;
}
.gold-vine {
    width: 100%;
    height: auto;
}

.card-subtitle {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--gold-light);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.card-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 600;
    line-height: 1.15;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    margin-bottom: 25px;
    letter-spacing: 0.02em;
}

.card-title.main-title {
    font-size: 3.5rem;
    font-weight: 300;
}

.and-symbol {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--gold-primary);
    font-size: 2.2rem;
    display: inline-block;
    margin: 5px 0;
    position: relative;
}

.card-intro {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-light);
    max-width: 460px;
    margin-bottom: 30px;
    font-weight: 300;
    letter-spacing: 0.01em;
}

.card-text {
    font-size: 0.92rem;
    line-height: 1.65;
    color: var(--text-light);
    margin-bottom: 25px;
    font-weight: 300;
}

.card-subtext {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 25px;
}

/* ========================================================
   DETAILS AND GRID STYLING
   ======================================================== */
.details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    width: 100%;
    max-width: 440px;
    margin-bottom: 30px;
}

.details-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 16px;
    transition: background 0.3s, transform 0.3s;
}

.details-item:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-2px);
    border-color: rgba(212, 175, 55, 0.15);
}

.details-icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
}

.details-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.details-value {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 4px;
}

.details-value.highlight-gold {
    color: var(--gold-light);
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}

.details-sub {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 300;
}

/* Countdown */
.countdown-container {
    margin-top: 10px;
    margin-bottom: 30px;
    width: 100%;
}

.countdown-label {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.time-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
    background: rgba(212, 175, 55, 0.06);
    border: 1px solid rgba(212, 175, 55, 0.12);
    border-radius: 8px;
    padding: 8px 4px;
}

.time-block span {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--gold-light);
}

.time-block .time-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

/* ========================================================
   DRESS CODE & PALETTE STYLING
   ======================================================== */
.palette-container {
    display: grid;
    grid-template-columns: repeat(4, max-content);
    justify-content: center;
    gap: 15px;
    margin: 25px 0;
}

.palette-color {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-hex);
    border: 2px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3), inset 0 2px 4px rgba(255, 255, 255, 0.2);
    cursor: pointer;
    position: relative;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
}

.palette-color:hover {
    transform: scale(1.18);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5), 0 0 12px var(--color-hex);
    z-index: 10;
}

.color-tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #02120b;
    border: 1px solid var(--gold-primary);
    color: var(--text-light);
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.palette-color:hover .color-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ========================================================
   FORM AND INPUT STYLING (Premium RSVP)
   ======================================================== */
.rsvp-form {
    width: 100%;
    max-width: 440px;
    text-align: left;
}

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

.form-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: #ffffff;
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
}

.form-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--gold-primary);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.15);
}

/* Radio buttons styled as premium tags */
.custom-radio-group, .custom-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.custom-checkbox-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

@media (min-width: 480px) {
    .custom-checkbox-group {
        grid-template-columns: 1fr 1fr;
    }
}

.custom-radio, .custom-checkbox {
    cursor: pointer;
    position: relative;
    width: 100%;
}

.custom-radio input, .custom-checkbox input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-btn, .checkbox-btn {
    display: block;
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 10px 16px;
    font-size: 0.82rem;
    color: var(--text-light);
    transition: all 0.3s ease;
    text-align: center;
}

.custom-radio:hover .radio-btn, .custom-checkbox:hover .checkbox-btn {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(212, 175, 55, 0.25);
}

.custom-radio input:checked + .radio-btn, 
.custom-checkbox input:checked + .checkbox-btn {
    background: rgba(212, 175, 55, 0.12);
    border-color: var(--gold-primary);
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.2);
    color: var(--gold-light);
    font-weight: 500;
}

/* Success panel specifics */
.success-icon {
    font-size: 3.5rem;
    margin-bottom: 15px;
    animation: floatingIcon 4s ease-in-out infinite alternate;
}

@keyframes floatingIcon {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-8px) rotate(2deg); }
}

/* ========================================================
   BUTTONS STYLING
   ======================================================== */
.btn {
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    padding: 14px 32px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    margin-top: 10px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-dark) 100%);
    color: #02120b;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold-primary) 100%);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35), 0 0 15px rgba(212, 175, 55, 0.2);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--gold-primary);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.15);
    color: var(--gold-light);
    transform: translateY(-2px);
}

/* Pulsing highlight effect */
.btn-pulse {
    position: relative;
    animation: buttonPulse 2s infinite alternate;
}

@keyframes buttonPulse {
    0% { box-shadow: 0 4px 15px rgba(212, 175, 55, 0.2); }
    100% { box-shadow: 0 4px 22px rgba(212, 175, 55, 0.5), 0 0 10px rgba(212, 175, 55, 0.3); }
}

/* ========================================================
   NAVIGATION & UTILITIES
   ======================================================== */
.navigation-controls {
    position: absolute;
    bottom: calc(30px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 30px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s, visibility 0.8s;
}

.navigation-controls.visible {
    opacity: 1;
    visibility: visible;
}

.nav-arrow {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-muted);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s;
    appearance: none;
    -webkit-appearance: none;
    padding: 0;
    margin: 0;
    outline: none;
    line-height: 1;
    font-family: inherit;
}

.nav-arrow:hover {
    border-color: var(--gold-primary);
    color: var(--gold-light);
    background: rgba(255, 255, 255, 0.05);
}

.nav-dots {
    display: flex;
    gap: 12px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.4s;
    display: block;
    flex-shrink: 0;
    padding: 0;
    margin: 0;
}

.dot.active {
    background: var(--gold-primary);
    box-shadow: 0 0 8px var(--gold-primary);
    transform: scale(1.35);
}

/* Music Control button */
.music-toggle-btn {
    position: absolute;
    top: calc(25px + env(safe-area-inset-top, 0px));
    right: calc(25px + env(safe-area-inset-right, 0px));
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--glass-shadow);
    transition: all 0.3s;
}

.music-toggle-btn:hover {
    border-color: var(--gold-primary);
    transform: scale(1.08);
}

.music-icon {
    font-size: 1.1rem;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.music-toggle-btn.playing .music-icon {
    opacity: 1;
    animation: musicWiggle 1s ease-in-out infinite alternate;
}

.music-ripple {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    border: 1px solid var(--gold-primary);
    opacity: 0;
    pointer-events: none;
}

.music-toggle-btn.playing .music-ripple {
    animation: ripple 2s linear infinite;
}

@keyframes musicWiggle {
    0% { transform: rotate(-5deg); }
    100% { transform: rotate(10deg); }
}

@keyframes ripple {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.6); opacity: 0; }
}

/* ========================================================
   RESPONSIVE DESIGN MEDIA QUERIES
   ======================================================== */
@media (max-width: 768px) {
    .card-title {
        font-size: 2.2rem;
        margin-bottom: 18px;
    }
    
    .card-title.main-title {
        font-size: 2.8rem;
    }

    .and-symbol {
        font-size: 1.8rem;
    }

    .card {
        padding: 30px 20px;
        max-height: 75vh;
    }

    .details-value {
        font-size: 1.3rem;
    }

    .time-block {
        min-width: 50px;
        padding: 6px 2px;
    }

    .time-block span {
        font-size: 1.4rem;
    }

    /* Adjust tree overlap translations on small screens so they clear cards beautifully */
    body[data-nav-step="1"] .fg-layer .tree-group.left-side { transform: translateX(-92%); }
    body[data-nav-step="1"] .fg-layer .tree-group.right-side { transform: translateX(92%); }
    body[data-nav-step="1"] .md-layer .tree-group.left-side { transform: translateX(-68%); }
    body[data-nav-step="1"] .md-layer .tree-group.right-side { transform: translateX(68%); }

    body[data-nav-step="2"] .fg-layer .tree-group.left-side { transform: translateX(-96%); }
    body[data-nav-step="2"] .fg-layer .tree-group.right-side { transform: translateX(96%); }
}

@media (max-height: 600px) {
    .card {
        padding: 15px 20px;
    }
    .card-title {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    .card-title.main-title {
        font-size: 2rem;
    }
    .card-subtitle {
        font-size: 1rem;
        margin-bottom: 4px;
    }
    .details-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-bottom: 10px;
    }
    .details-item {
        padding: 8px;
    }
    .countdown-container {
        margin-bottom: 10px;
    }
    .palette-container {
        margin: 10px 0;
    }
    .palette-color {
        width: 35px;
        height: 35px;
    }
    .btn {
        padding: 10px 20px;
    }
}