:root {
    --primary-color: #00e5ff;
    --secondary-color: #6d28d9;
    --accent-color: #f50057;
    --bg-dark: #0f172a;
    --bg-glass: rgba(15, 23, 42, 0.7);
    --card-glass: rgba(255, 255, 255, 0.05);
    --border-glass: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --radius-lg: 16px;
    --radius-md: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(109, 40, 217, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(0, 229, 255, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

.app-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

/* Utilities */
.text-gold {
    color: #fbbf24;
}

.text-blue {
    color: #3b82f6;
}

.text-green {
    color: #10b981;
}

.w-100 {
    width: 100%;
}

.display-none {
    display: none !important;
}

.relative {
    position: relative;
}

/* Modern Card */
.modern-card {
    background: var(--card-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.modern-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Banner */
.banner-section {
    margin-bottom: 20px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-glass);
    max-height: 200px;
    display: flex;
    align-items: center;
    background: #000;
}

.main-banner {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Registration Action */
.registration-action {
    text-align: center;
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.8));
    border: 1px solid rgba(0, 229, 255, 0.2);
}

.registration-action h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(to right, var(--primary-color), #fff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.registration-action p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.5);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Lists */
.list-section h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 12px;
}

.empty-state {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-style: italic;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

/* Organisers */
.organiser-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.organiser-card {
    background: rgba(0, 0, 0, 0.3);
    padding: 16px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--border-glass);
}

.org-avatar {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.5rem;
    color: white;
}

.organiser-card h4 {
    margin-bottom: 4px;
    color: var(--text-primary);
}

.organiser-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Guest Cards */
.guest-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 15px;
}

.guest-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.guest-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.guest-image {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}

.guest-info {
    flex: 1;
}

.guest-info h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    line-height: 1.2;
}

.guest-desig {
    color: var(--primary-color);
    font-size: 0.85rem;
    margin: 4px 0 2px;
    font-weight: 500;
}

.guest-comp {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin: 0;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-dark);
    width: 95%;
    max-width: 500px;
    max-height: 85vh;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    transform: translateY(100px);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    z-index: 2;
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
}

.modal-header h2 {
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

.close-btn:hover {
    color: var(--accent-color);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.1);
}

/* Specific styling for select dropdown color */
.form-group select option {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.suggestions-box {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border-glass);
    border-top: none;
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
    z-index: 10;
    display: none;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
}

.suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.2s;
}

.suggestion-item:hover {
    background: rgba(0, 229, 255, 0.15);
    color: var(--primary-color);
}

/* Fee Card */
.fee-calculation-card,
.payment-section {
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 20px;
    margin-bottom: 20px;
    animation: fadeIn 0.4s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fee-calculation-card h4,
.payment-section h4 {
    color: var(--primary-color);
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.fee-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
}

#totalFee {
    font-size: 1.5rem;
    color: var(--success);
}

.payment-instruction {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.payment-section h5 {
    margin: 20px 0 12px;
    color: var(--text-primary);
    font-size: 1rem;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 8px;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
    background: var(--border-glass);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}