/* ==========================================================================
   DESIGN SYSTEM & CUSTOM PROPERTIES (THEMES)
   ========================================================================== */

:root {
    /* Fonts */
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Montserrat', 'Inter', sans-serif;
    
    /* Layout */
    --sidebar-width: 420px;
    --sidebar-collapsed-width: 0px;
    --transition-speed: 0.3s;
   
    /* Shared Glows & Metallic Gold */
    --gold-gradient: linear-gradient(135deg, #c5a059 0%, #f7f1e3 50%, #b38f4d 100%);
    --gold-metallic: #c5a059;
    --gold-light: #f3e9d2;
    --gold-dark: #8a6d3b;
    --gold-glow: 0 0 15px rgba(197, 160, 89, 0.4);
    
    /* System Colors */
    --white: #ffffff;
    --black: #111111;
    --success: #2ec4b6;
    
    /* Interactive variables (Overridden by themes) */
    --bg-primary: #fcfbf7;
    --bg-secondary: #f4f1ea;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --accent-color: #c5a059;
    --card-bg: rgba(255, 255, 255, 0.92);
    --card-border: rgba(197, 160, 89, 0.25);
    --card-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    --input-bg: #ffffff;
    --input-border: #dfe6e9;
    --particle-color: rgba(197, 160, 89, 0.3);
}

/* Theme 1: Champagne & Gold (Light, classic ceremony) */
body.theme-champagne {
    --bg-primary: #faf8f5;
    --bg-secondary: #f2ede4;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --accent-color: #c5a059;
    --card-bg: rgba(255, 255, 255, 0.94);
    --card-border: rgba(197, 160, 89, 0.3);
    --card-shadow: 0 30px 60px rgba(139, 125, 96, 0.15);
    --input-bg: #ffffff;
    --input-border: rgba(197, 160, 89, 0.25);
    --particle-color: rgba(197, 160, 89, 0.35);
}

/* Theme 2: Sapphire & Gold (Deep Navy Blue, formal ceremony) */
body.theme-sapphire {
    --bg-primary: #0a1128;
    --bg-secondary: #001f54;
    --text-primary: #ffffff;
    --text-secondary: #a5b1c2;
    --accent-color: #f7b731;
    --card-bg: rgba(10, 25, 47, 0.85);
    --card-border: rgba(247, 183, 49, 0.4);
    --card-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    --input-bg: #0d1e36;
    --input-border: rgba(247, 183, 49, 0.3);
    --particle-color: rgba(247, 183, 49, 0.5);
}

/* Theme 3: Emerald & Gold (Deep Forest Green, rich ceremony) */
body.theme-emerald {
    --bg-primary: #052e16;
    --bg-secondary: #022c22;
    --text-primary: #f0fdf4;
    --text-secondary: #a7f3d0;
    --accent-color: #fbbf24;
    --card-bg: rgba(6, 40, 30, 0.88);
    --card-border: rgba(251, 191, 36, 0.4);
    --card-shadow: 0 30px 60px rgba(2, 20, 15, 0.6);
    --input-bg: #093c2c;
    --input-border: rgba(251, 191, 36, 0.3);
    --particle-color: rgba(251, 191, 36, 0.4);
}

/* Theme 4: Ruby / Burgundy (Warm royal ceremony) */
body.theme-ruby {
    --bg-primary: #2d000f;
    --bg-secondary: #4a0018;
    --text-primary: #fff5f7;
    --text-secondary: #f3a3b9;
    --accent-color: #ffd32a;
    --card-bg: rgba(54, 5, 23, 0.88);
    --card-border: rgba(255, 211, 42, 0.45);
    --card-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    --input-bg: #4c0821;
    --input-border: rgba(255, 211, 42, 0.3);
    --particle-color: rgba(255, 211, 42, 0.5);
}

/* ==========================================================================
   GLOBAL STYLES & RESET
   ========================================================================== */

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    height: 100vh;
    min-height: 100vh;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(197, 160, 89, 0.3);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(197, 160, 89, 0.6);
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */

.app-container {
    display: flex;
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

/* ==========================================================================
   EDITOR SIDEBAR STYLES
   ========================================================================== */

.editor-sidebar {
    width: var(--sidebar-width);
    height: 100%;
    background: #ffffff;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
   /* z-index: 100; Need changes */
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.03);
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), margin-left 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    color: #2d3436; /* Always readable light background for the settings panel */
    position:absolute;
}

/* For sidebar collapse */
.editor-sidebar.collapsed {
    margin-left: calc(-1 * var(--sidebar-width));
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    font-size: 24px;
}

.brand h2 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: #111111;
}

.toggle-sidebar-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #636e72;
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
}

.toggle-sidebar-btn:hover {
    background-color: #f1f2f6;
    color: var(--gold-metallic);
}

/* Sidebar Tab Controls */
.tabs-nav {
    display: flex;
    padding: 10px 20px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    gap: 10px;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    padding: 12px 6px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    color: #636e72;
    position: relative;
    transition: color 0.2s;
}

.tab-btn:hover {
    color: #111111;
}

.tab-btn.active {
    color: var(--gold-metallic);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--gold-metallic);
    border-radius: 2px;
}

.tab-btn .badge {
    background: var(--gold-metallic);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 4px;
}

/* Sidebar content panels */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* Form Styles inside sidebar */
.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 8px;
    color: #2d3436;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="datetime-local"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-sans);
    font-size: 14px;
    border: 1px solid #dfe6e9;
    border-radius: 8px;
    outline: none;
    background-color: #fcfcfc;
    color: #2d3436;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--gold-metallic);
    box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.15);
    background-color: #ffffff;
}

.form-group textarea {
    resize: vertical;
    line-height: 1.5;
}

.help-text {
    display: block;
    font-size: 11px;
    color: #8395a7;
    margin-top: 5px;
}

/* Image Preset Grid */
.image-selector-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.image-preset-btn {
    height: 48px;
    border: 1px solid #dfe6e9;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s;
}

/* Presets custom background images */
.image-preset-btn:nth-child(1) { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('assets/graduation_cover.png'); }
.image-preset-btn:nth-child(2) { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?q=80&w=120&auto=format&fit=crop'); }
.image-preset-btn:nth-child(3) { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1541339907198-e08756dedf3f?q=80&w=120&auto=format&fit=crop'); }
.image-preset-btn:nth-child(4) { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1511578314322-379afb476865?q=80&w=120&auto=format&fit=crop'); }

.preset-label {
    position: absolute;
    bottom: 4px;
    left: 6px;
    color: white;
    font-size: 10px;
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}

.image-preset-btn.active {
    border: 2px solid var(--gold-metallic);
    transform: scale(1.02);
}

.image-preset-btn.active::after {
    content: '✓';
    position: absolute;
    top: 4px;
    right: 6px;
    background: var(--gold-metallic);
    color: white;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    font-size: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-url-group {
    border-top: 1px dashed rgba(0, 0, 0, 0.08);
    padding-top: 12px;
}

.or-text {
    display: block;
    font-size: 11px;
    color: #636e72;
    margin-bottom: 6px;
}

/* Theme selector options */
.theme-selector-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.theme-option {
    display: flex;
    align-items: center;
    padding: 10px;
    border: 1px solid #dfe6e9;
    border-radius: 8px;
    background: none;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.theme-option:hover {
    background-color: #f8f9fa;
    border-color: #b2bec3;
}

.theme-option.active {
    border-color: var(--gold-metallic);
    background-color: rgba(197, 160, 89, 0.05);
}

.color-preview {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    margin-right: 12px;
    flex-shrink: 0;
    box-shadow: inset 0 0 3px rgba(0,0,0,0.1);
}

.theme-info {
    display: flex;
    flex-direction: column;
}

.theme-name {
    font-size: 13px;
    font-weight: 600;
    color: #2d3436;
}

.theme-desc {
    font-size: 11px;
    color: #74b9ff;
    color: #636e72;
}

/* Toggle Switches */
.toggle-control {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.toggle-control span {
    font-size: 13px;
    color: #2d3436;
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .3s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
}

input:checked + .slider {
    background-color: var(--gold-metallic);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--gold-metallic);
}

input:checked + .slider:before {
    transform: translateX(20px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

/* RSVP tab items list */
.rsvp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.rsvp-header h3 {
    font-size: 14px;
    color: #111111;
}

.clear-rsvp-btn {
    background: none;
    border: none;
    color: #ff7675;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
}

.clear-rsvp-btn:hover {
    text-decoration: underline;
}

.rsvp-list-wrapper {
    max-height: 400px;
    overflow-y: auto;
}

.rsvp-list {
    list-style: none;
}

.rsvp-list li {
    padding: 12px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 13px;
    background-color: #fcfcfc;
    animation: slideIn 0.3s ease;
}

.rsvp-name {
    font-weight: 700;
    color: #111111;
    display: block;
    margin-bottom: 3px;
}

.rsvp-guests-count {
    font-size: 11px;
    color: var(--gold-metallic);
    font-weight: 600;
    display: inline-block;
    background-color: rgba(197, 160, 89, 0.1);
    padding: 1px 6px;
    border-radius: 4px;
    margin-bottom: 4px;
}

.rsvp-comment {
    font-style: italic;
    color: #636e72;
    display: block;
    margin-top: 4px;
    font-size: 12px;
}

.empty-state {
    text-align: center;
    color: #b2bec3;
    font-style: italic;
    padding: 40px 10px;
    border: 1px dashed rgba(0,0,0,0.1) !important;
}

.sidebar-footer {
    padding: 18px 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    background: #ffffff;
}

/* ==========================================================================
   BUTTON SYSTEM
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background-color: #111111;
    color: #ffffff;
    border: 1px solid #111111;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--gold-metallic);
    border-color: var(--gold-metallic);
    box-shadow: var(--gold-glow);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #3b2b11 !important;
    border: 1px solid var(--gold-metallic);
    box-shadow: 0 4px 15px rgba(197, 160, 89, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(197, 160, 89, 0.5), var(--gold-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.btn-outline:hover {
    background-color: rgba(197, 160, 89, 0.1);
    border-color: var(--accent-color);
}

/* ==========================================================================
   LIVE PREVIEW CONTAINER STYLES
   ========================================================================== */

.preview-area {
    flex: 1;
    height: 100%;
    position: relative;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 20px;
    background: radial-gradient(circle at top right, var(--bg-secondary) 0%, var(--bg-primary) 70%);
    transition: background var(--transition-speed) ease;
}

/* Particle effect container */
.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    background-color: var(--particle-color);
    border-radius: 50%;
    pointer-events: none;
    animation: floatParticle 8s infinite linear;
}

/* Floating Music Toggle */
.music-toggle-floating {
    position: fixed;
    top: 25px;
    right: 25px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.3s ease;
}

.music-toggle-floating:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
    box-shadow: var(--gold-glow);
}

.music-toggle-floating.playing {
    animation: pulseMusic 2s infinite;
}

.music-toggle-floating.playing .music-icon {
    display: inline-block;
    animation: spinMusic 3s infinite linear;
}

/* ==========================================================================
   PREMIUM INVITATION CARD
   ========================================================================== */

.invitation-viewport {
    width: 100%;
    max-width: 580px;
    z-index: 5;
    position: relative;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.invitation-card {
    background-color: var(--card-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 50px 40px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-speed) ease;
    overflow: hidden;
    position: relative;
}

/* Card inner gold borders */
.invitation-card::before {
    content: '';
    position: absolute;
    top: 15px;
    right: 15px;
    bottom: 15px;
    left: 15px;
    border: 1px solid rgba(197, 160, 89, 0.4);
    border-radius: 12px;
    pointer-events: none;
}

.invitation-card::after {
    content: '';
    position: absolute;
    top: 20px;
    right: 20px;
    bottom: 20px;
    left: 20px;
    border: 1px solid rgba(197, 160, 89, 0.15);
    border-radius: 8px;
    pointer-events: none;
}

/* School Crest decoration */
.card-crest {
    display: inline-block;
    margin-bottom: 20px;
    animation: float 4s ease-in-out infinite;
}

.crest-svg {
    width: 65px;
    height: 65px;
}

.crest-shield {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 1.5;
}

.crest-shield-inner {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 0.8;
    stroke-dasharray: 2, 2;
}

.crest-diamond {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 1;
}

.crest-circle {
    fill: var(--accent-color);
    opacity: 0.8;
}

.crest-laurel {
    fill: none;
    stroke: var(--white);
    stroke-width: 1.5;
}

/* Card Header styles */
.school-name {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 12px;
}

.header-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
}

.header-divider .dot {
    width: 4px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

.header-divider .line {
    width: 60px;
    height: 1px;
    background-color: var(--card-border);
}

/* Cover Image Frame */
.card-media-wrapper {
    margin-bottom: 35px;
    position: relative;
    perspective: 1000px;
}

.card-media-frame {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    border: 3px double var(--card-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    background-color: rgba(0,0,0,0.05);
    transform-style: preserve-3d;
    transition: transform 0.5s ease;
}

.card-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.card-media-frame:hover .card-image {
    transform: scale(1.06);
}

.media-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.3));
    pointer-events: none;
}

/* Intro Text */
.tagline {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 8px;
}

.ceremony-title {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 25px;
}

/* Main Text Body */
.card-body {
    max-width: 460px;
    margin: 0 auto 35px;
}

.invitation-text {
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    font-style: italic;
}

/* COUNTDOWN DISPLAY SECTION */
.countdown-section {
    background-color: rgba(0,0,0,0.02);
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    padding: 24px 10px;
    margin-bottom: 35px;
}

.countdown-label {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 14px;
}

.countdown-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.countdown-item {
    min-width: 65px;
}

.countdown-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 6px;
}

.countdown-unit {
    font-family: var(--font-sans);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 500;
}

.countdown-separator {
    font-family: var(--font-serif);
    font-size: 26px;
    color: var(--accent-color);
    font-weight: 600;
    transform: translateY(-8px);
}

/* Event Logistics Section */
.card-logistics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
    text-align: left;
}

.logistic-item {
    display: flex;
    gap: 12px;
}

.logistic-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: rgba(197, 160, 89, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--card-border);
}

.logistic-details {
    display: flex;
    flex-direction: column;
}

.logistic-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.logistic-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.logistic-value-sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Action Buttons inside Card */
.card-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.card-actions .btn {
    flex: 1;
    max-width: 200px;
}

/* ==========================================================================
   MODAL WINDOW STYLES
   ========================================================================== */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    width: 90%;
    max-width: 480px;
    padding: 35px 30px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--text-primary);
}

.modal-backdrop.open .modal-card {
    transform: scale(1);
}

.close-modal-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.close-modal-btn:hover {
    color: var(--text-primary);
}

.modal-header {
    text-align: center;
    margin-bottom: 25px;
}

.modal-header h2 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.modal-header p {
    font-size: 13px;
    color: var(--text-secondary);
}

.modal-form .form-group label {
    color: var(--text-primary);
}

.modal-form .form-group input,
.modal-form .form-group select,
.modal-form .form-group textarea {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 25px;
}

/* ==========================================================================
   ANIMATION KEYFRAMES
   ========================================================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) translateX(0) scale(1);
        opacity: 0;
    }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% {
        transform: translateY(-10vh) translateX(100px) scale(0.6);
        opacity: 0;
    }
}

@keyframes pulseMusic {
    0% { box-shadow: 0 0 0 0 rgba(197, 160, 89, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(197, 160, 89, 0); }
    100% { box-shadow: 0 0 0 0 rgba(197, 160, 89, 0); }
}

@keyframes spinMusic {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   RESPONSIVE DESIGN STYLES (MOBILE-FIRST PRINCIPLE)
   ========================================================================== */

/* Utility visibility classes */
.desktop-only {
    display: flex !important;
}
.mobile-only {
    display: none !important;
}

/* Mobile Screens and Small Tablets */
@media (max-width: 992px) {
    .desktop-only {
        display: none !important;
    }
    
    .mobile-only {
        display: flex !important;
    }
    
    .app-container {
        flex-direction: column;
    }
    
    .editor-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 100%;
        max-width: 380px;
        z-index: 1000;
        transform: translateX(-100%);
    }
    
    .editor-sidebar.open {
        transform: translateX(0);
        box-shadow: 5px 0 35px rgba(0, 0, 0, 0.25);
    }
    
    /* Toggle control button for sidebar */
    .floating-editor-toggle {
        position: fixed;
        bottom: 20px;
        left: 20px;
        width: 54px;
        height: 54px;
        border-radius: 50%;
        background-color: var(--accent-color);
        color: white;
        border: none;
        box-shadow: 0 5px 20px rgba(0,0,0,0.3);
        cursor: pointer;
        z-index: 900;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: transform 0.2s ease, background-color 0.2s;
    }
    
    .floating-editor-toggle:hover {
        transform: scale(1.05);
    }
    
    .floating-editor-toggle.active {
        background-color: #2d3436;
        transform: rotate(90deg);
    }
    
    .preview-area {
        padding: 40px 15px 80px 15px; /* bottom padding for mobile action button */
    }
    
    .invitation-card {
        padding: 35px 20px;
    }
    
    .ceremony-title {
        font-size: 26px;
    }
    
    .card-logistics {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .card-actions {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    
    .card-actions .btn {
        max-width: 100%;
        width: 100%;
    }
}