/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Performance Optimizations */
html {
    scroll-behavior: smooth;
}

/* Reduce motion for users who prefer it (Accessibility) */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Optimize rendering performance */
.hero-img,
.form-input,
.form-textarea,
.submit-btn,
.guests-table {
    will-change: transform;
}

/* GPU acceleration for animations */
.tab-btn,
.form-group,
.guests-table tbody tr {
    transform: translateZ(0);
    backface-visibility: hidden;
}

:root {
    /* Dark Theme Color Palette */
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --primary-light: #1e3a8a;
    --secondary-color: #a78bfa;
    --secondary-hover: #8b5cf6;
    --secondary-light: #5b21b6;
    --accent-color: #34d399;
    --accent-light: #064e3b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* Dark Background Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-gradient: linear-gradient(135deg, #0a0a0a 0%, #111827 50%, #1f2937 100%);
    --bg-overlay: rgba(0, 0, 0, 0.8);
    
    /* Dark Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #e5e7eb;
    --text-muted: #9ca3af;
    --text-inverse: #111827;
    --text-accent: #60a5fa;
    
    /* Dark Border Colors */
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.2);
    --border-dark: rgba(255, 255, 255, 0.3);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
}

body {
    font-family: var(--font-family);
    background: var(--bg-gradient);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    margin: 0;
    padding: 0;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(96, 165, 250, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(167, 139, 250, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(52, 211, 153, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes float {
    0%, 100% { transform: translateX(0) translateY(0); }
    50% { transform: translateX(-5px) translateY(-5px); }
}

@keyframes heroZoom {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

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

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmerEffect {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes textGlow {
    0% {
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }
    100% {
        text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5), 0 0 10px rgba(255, 255, 255, 0.3);
    }
}

@keyframes subtitleFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes gradientPulse {
    0%, 100% {
        background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    }
    50% {
        background: linear-gradient(to bottom, var(--secondary-color), var(--accent-color));
    }
}

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

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

@keyframes emptyStatePulse {
    0%, 100% {
        border-color: var(--border-medium);
        transform: scale(1);
    }
    50% {
        border-color: var(--border-dark);
        transform: scale(1.02);
    }
}

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(5deg);
    }
}

@keyframes counterPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes counterShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Tab Navigation */
.tab-navigation {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-lg) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.tab-navigation .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.app-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.8);
    margin: 0;
}

.tabs {
    display: flex;
    gap: var(--space-md);
}

.tab-btn {
    background: rgba(15, 23, 42, 0.8);
    color: var(--text-secondary);
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.2), transparent);
    transition: left 0.5s ease;
}

.tab-btn:hover {
    color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(96, 165, 250, 0.4);
    transform: translateY(-2px);
}

.tab-btn:hover::before {
    left: 100%;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 0 25px rgba(96, 165, 250, 0.6);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
    display: block;
}

/* Hero Section */
.hero-section {
    padding: var(--space-2xl) 0;
    position: relative;
}

.hero-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-2xl);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.6));
    z-index: 2;
    transition: all var(--transition-normal);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: all var(--transition-normal);
    filter: brightness(0.7) contrast(1.1);
}

.hero-img:hover {
    transform: scale(1.05);
    filter: brightness(0.8) contrast(1.2);
}

.hero-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 3;
    color: #ffffff;
    padding: var(--space-xl);
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    text-shadow: 0 0 30px rgba(0, 0, 0, 0.8);
    animation: textGlow 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    text-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
    animation: subtitleFloat 4s ease-in-out infinite;
}

/* Animated Flowchart */
.flowchart-container {
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a2e 50%, #0f172a 100%);
    min-height: 500px;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    margin: var(--space-2xl) 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.flowchart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(96, 165, 250, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(167, 139, 250, 0.1) 0%, transparent 50%);
    z-index: 1;
    pointer-events: none;
}

.flowchart {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2xl);
    min-height: 220px;
    align-items: center;
}

.flowchart-step {
    background: rgba(31, 41, 55, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
    border-radius: 1.75rem;
    padding: var(--space-xl);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Animated Moving Border */
.flowchart-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 1.75rem;
    padding: 2px;
    background: linear-gradient(45deg, 
        transparent, 
        var(--primary-color), 
        var(--secondary-color), 
        transparent
    );
    background-size: 400% 400%;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: xor;
    -webkit-mask-composite: xor;
    animation: movingBorder 6s linear infinite;
    z-index: -1;
}

.flowchart-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(96, 165, 250, 0.3);
    background: rgba(96, 165, 250, 0.1);
    border-color: var(--primary-color);
}

.flowchart-step.highlighted {
    background: rgba(167, 139, 250, 0.2);
    border-color: var(--secondary-color);
    box-shadow: 0 0 30px rgba(167, 139, 250, 0.5);
}

.flowchart-step.glowing {
    box-shadow: 0 0 40px rgba(96, 165, 250, 0.7);
    transform: translateY(-8px) scale(1.03);
}

.flowchart-step.completed {
    background: rgba(52, 211, 153, 0.1);
    border-color: var(--accent-color);
    box-shadow: 0 0 25px rgba(52, 211, 153, 0.4);
    transform: translateY(-5px) scale(1.01);
}

.flowchart-step.dimmed {
    opacity: 0.3;
    transform: scale(0.96);
    filter: grayscale(0.5);
}

.step-number {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    box-shadow: 0 4px 12px rgba(96, 165, 250, 0.4);
}

.step-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 0 10px rgba(96, 165, 250, 0.5));
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: var(--space-sm);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.step-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* SVG Connection Lines */
.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.connection-line {
    stroke: #60a5fa;
    stroke-width: 5;
    fill: none;
    stroke-linecap: round;
    opacity: 1;
    filter: drop-shadow(0 0 8px rgba(96, 165, 250, 0.6)) 
            drop-shadow(0 0 15px rgba(96, 165, 250, 0.4)) 
            drop-shadow(0 0 25px rgba(96, 165, 250, 0.2));
}

.arrow-marker {
    fill: #60a5fa;
    filter: drop-shadow(0 0 5px rgba(96, 165, 250, 0.8));
}

/* Animation Keyframes */
@keyframes movingBorder {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes pulse {
    0%, 100% { 
        box-shadow: 0 0 40px rgba(96, 165, 250, 0.7);
        transform: scale(1);
    }
    50% { 
        box-shadow: 0 0 60px rgba(96, 165, 250, 0.9);
        transform: scale(1.02);
    }
}

@keyframes textGlow {
    0%, 100% { text-shadow: 0 0 30px rgba(0, 0, 0, 0.8); }
    50% { text-shadow: 0 0 40px rgba(96, 165, 250, 0.5), 0 0 30px rgba(0, 0, 0, 0.8); }
}

@keyframes subtitleFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(1deg); }
    66% { transform: translateY(-5px) rotate(-1deg); }
}

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

/* Badge */
.indian-badge {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    background: linear-gradient(135deg, #ff9933, #ffffff, #138808);
    color: #000;
    padding: var(--space-sm) var(--space-md);
    border-radius: 50px;
    font-weight: 600;
    font-size: var(--font-size-sm);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    animation: float 6s ease-in-out infinite;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.indian-badge:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.125rem;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .tab-navigation .container {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .app-title {
        font-size: var(--font-size-xl);
    }

    .tabs {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-sm);
    }

    .tab-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-sm);
    }

    .hero-section {
        padding: var(--space-lg) 0;
    }

    .hero-img {
        height: 250px;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .flowchart {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
        min-height: auto;
    }

    .flowchart-container {
        padding: var(--space-lg);
        margin: var(--space-lg) 0;
    }

    .flowchart-step {
        padding: var(--space-lg);
        min-height: 150px;
    }

    .step-title {
        font-size: var(--font-size-lg);
    }

    .step-description {
        font-size: var(--font-size-xs);
    }

    .indian-badge {
        bottom: var(--space-md);
        right: var(--space-md);
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }

    .form-container,
    .guest-table-container {
        padding: var(--space-lg);
    }

    .form-group {
        margin-bottom: var(--space-md);
    }

    .submit-btn {
        padding: var(--space-md) var(--space-lg);
        font-size: var(--font-size-sm);
    }

    .guest-table {
        font-size: var(--font-size-sm);
    }

    .guest-table th,
    .guest-table td {
        padding: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .hero-img {
        height: 200px;
    }

    .hero-title {
        font-size: var(--font-size-xl);
    }

    .flowchart-step {
        min-height: 120px;
        padding: var(--space-md);
    }

    .step-number {
        width: 24px;
        height: 24px;
        font-size: var(--font-size-xs);
        top: var(--space-sm);
        left: var(--space-sm);
    }

    .step-icon {
        width: 36px;
        height: 36px;
        margin-bottom: var(--space-sm);
    }
}

/* Form Section - Dark Theme */
.form-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.form-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    opacity: 0.3;
    z-index: -1;
    animation: gentle-spin 30s linear infinite;
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: #ffffff;
    text-shadow: 0 0 20px rgba(59, 130, 246, 0.8);
    text-align: center;
}

.guest-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--space-xl);
    position: relative;
    animation: slideInLeft 0.6s ease-out;
    animation-fill-mode: both;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }

.form-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: -20px;
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.form-group:focus-within::before {
    opacity: 1;
    animation: gradientPulse 2s ease-in-out infinite;
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: var(--space-xs);
    transition: all var(--transition-normal);
    position: relative;
}

.form-label::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-normal);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.8);
    color: #ffffff;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #64748b;
    opacity: 1;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: #60a5fa;
    box-shadow: 0 0 20px rgba(96, 165, 250, 0.4);
    background: rgba(15, 23, 42, 0.9);
}

.form-input:focus::placeholder,
.form-textarea:focus::placeholder {
    color: #94a3b8;
}

.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-sm);
    animation: slideInUp 0.5s ease-out;
    animation-fill-mode: both;
    animation-delay: 0.3s;
}

.char-counter {
    font-size: var(--font-size-xs);
    color: #94a3b8;
    text-align: right;
    margin-top: var(--space-xs);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.char-counter.warning {
    color: #fbbf24;
    animation: counterPulse 2s ease-in-out infinite;
}

.char-counter.danger {
    color: #f87171;
    animation: counterShake 0.5s ease-in-out infinite;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.error-message {
    color: #f87171;
    font-size: var(--font-size-xs);
    margin-top: var(--space-xs);
    display: block;
}

.submit-btn {
    background: linear-gradient(135deg, #3b82f6, #6366f1);
    color: white;
    border: none;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    min-width: 140px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.submit-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loader {
    margin-left: var(--space-sm);
}

/* Form Messages */
.form-messages {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    text-align: center;
}

.form-messages.success {
    background: rgba(16, 185, 129, 0.1);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.form-messages.error {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    border: 1px solid rgba(248, 113, 113, 0.3);
}

/* Guests Section - Dark Theme */
.guests-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.guests-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    opacity: 0.3;
    z-index: -1;
    animation: gentle-spin 35s linear infinite reverse;
}

/* Table Styles */
.table-container {
    background: rgba(15, 23, 42, 0.6);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 
        0 10px 25px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.guests-table {
    width: 100%;
    border-collapse: collapse;
    background: transparent;
}

.guests-table th,
.guests-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.guests-table th {
    background: rgba(15, 23, 42, 0.8);
    color: #e2e8f0;
    font-weight: 700;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
}

.guests-table th::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #6366f1);
}

.guests-table td {
    color: #cbd5e1;
    font-weight: 500;
    transition: all var(--transition-normal);
    background: rgba(15, 23, 42, 0.4);
}

.guests-table tbody tr {
    transition: all var(--transition-normal);
    animation: tableRowFadeIn 0.5s ease-out;
    animation-fill-mode: both;
}

.guests-table tbody tr:nth-child(even) td {
    background: rgba(15, 23, 42, 0.6);
}

.guests-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.15);
}

.guests-table tbody tr:hover td {
    color: #e2e8f0;
    background: transparent;
}

.guests-table tbody tr:last-child td {
    border-bottom: none;
}

.guests-table tbody tr:first-child {
    animation-delay: 0.1s;
}

.guests-table tbody tr:nth-child(2) {
    animation-delay: 0.2s;
}

.guests-table tbody tr:nth-child(3) {
    animation-delay: 0.3s;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: #94a3b8;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 2px dashed rgba(255, 255, 255, 0.2);
    margin: var(--space-xl) 0;
    position: relative;
    overflow: hidden;
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
    color: #e2e8f0;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.empty-state p {
    font-size: var(--font-size-base);
    position: relative;
    z-index: 1;
    opacity: 0.8;
}

.empty-state::after {
    content: '📝';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: var(--font-size-2xl);
    opacity: 0.2;
    animation: floatIcon 4s ease-in-out infinite;
}

/* Load More Button */
.load-more-btn {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.load-more-btn:hover {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

/* Animation for smooth transitions */
.tab-content {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Glowing Animation States */
.flowchart-step.glowing {
    animation: boxGlow 2s ease-in-out infinite;
    transform: translateY(-8px) scale(1.03);
}

.flowchart-step.glowing::before {
    background: linear-gradient(90deg, 
        transparent,
        #fbbf24,
        #f59e0b,
        #d97706,
        #f97316,
        transparent
    );
    animation: glowingBorder 2s linear infinite;
    opacity: 1;
    background-size: 150% 100%;
}

.flowchart-step.glowing .step-title {
    color: #fbbf24;
    text-shadow: 
        0 0 25px rgba(251, 191, 36, 1),
        0 0 50px rgba(251, 191, 36, 0.8);
    animation: textPulse 1.5s ease-in-out infinite;
}

.flowchart-step.glowing .step-icon {
    filter: drop-shadow(0 0 30px rgba(251, 191, 36, 1));
    animation: iconPulse 1.5s ease-in-out infinite;
    transform: scale(1.15);
}

.flowchart-step.completed {
    transform: translateY(-5px) scale(1.01);
}

.flowchart-step.completed::before {
    background: linear-gradient(90deg, 
        transparent,
        #10b981,
        #059669,
        #047857,
        #065f46,
        transparent
    );
    animation: completedBorder 4s linear infinite;
    opacity: 0.9;
}

.flowchart-step.completed .step-title {
    color: #10b981;
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.8);
}

.flowchart-step.completed .step-icon {
    filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.6));
}

/* Hover States for Boxes */
.flowchart-step.highlighted {
    transform: translateY(-10px) scale(1.04);
}

.flowchart-step.highlighted::before {
    background: linear-gradient(90deg, 
        transparent,
        #8b5cf6,
        #a855f7,
        #c084fc,
        #ddd6fe,
        transparent
    );
    animation: highlightBorder 3s linear infinite;
    opacity: 1;
}

.flowchart-step.dimmed {
    opacity: 0.3;
    transform: scale(0.96);
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

@keyframes iconGlow {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

@keyframes glowingBorder {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes textPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes completedBorder {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes highlightBorder {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes boxGlow {
    0% {
        box-shadow: 0 0 40px rgba(96, 165, 250, 0.7);
    }
    50% {
        box-shadow: 0 0 60px rgba(96, 165, 250, 0.9);
    }
    100% {
        box-shadow: 0 0 40px rgba(96, 165, 250, 0.7);
    }
}