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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    min-height: 100vh;
    color: #e2e8f0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Connection Status */
.connection-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
    padding: 10px 20px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: #06b6d4;
    font-weight: 500;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ef4444;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
    transition: background-color 0.3s ease;
}

.status-indicator.connected {
    background: #10b981;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Wallet Section */
.wallet-section {
    text-align: center;
    margin-bottom: 30px;
}

.wallet-info {
    background: rgba(6, 182, 212, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin-top: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(6, 182, 212, 0.2);
    color: #06b6d4;
}

.wallet-info p {
    margin-bottom: 5px;
}

/* Buttons */
.btn {
    background: linear-gradient(45deg, #06b6d4, #0891b2);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(6, 182, 212, 0.5);
    background: linear-gradient(45deg, #0891b2, #06b6d4);
}

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

.btn-secondary {
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-secondary:hover {
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

.btn-success {
    background: linear-gradient(45deg, #10b981, #059669);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    box-shadow: 0 6px 25px rgba(16, 185, 129, 0.5);
}

.btn-danger {
    background: linear-gradient(45deg, #ef4444, #dc2626);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    box-shadow: 0 6px 25px rgba(239, 68, 68, 0.5);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Main Content */
.main-content {
    background: #1e293b;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border: 1px solid rgba(6, 182, 212, 0.2);
    overflow: hidden;
}

/* Tabs */
.tab-container {
    display: flex;
    background: #0f172a;
    border-bottom: 2px solid rgba(6, 182, 212, 0.3);
}

.tab-btn {
    flex: 1;
    padding: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #64748b;
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn:hover {
    background: rgba(6, 182, 212, 0.1);
    color: #06b6d4;
}

.tab-btn.active {
    color: #06b6d4;
    background: #1e293b;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(45deg, #06b6d4, #0891b2);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
}

/* Tab Content */
.tab-content {
    padding: 30px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

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

/* Cards */
.card {
    background: #0f172a;
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.card h3 {
    color: #06b6d4;
    margin-bottom: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    text-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.card p {
    color: #94a3b8;
    margin-bottom: 20px;
    font-size: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #e2e8f0;
    font-weight: 600;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid rgba(6, 182, 212, 0.3);
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #1e293b;
    color: #e2e8f0;
}

.form-group input:focus {
    outline: none;
    border-color: #06b6d4;
    background: #0f172a;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #64748b;
    font-size: 12px;
}

/* Results */
.result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    font-weight: 500;
}

.result.success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.result.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.result.info {
    background: rgba(6, 182, 212, 0.1);
    color: #06b6d4;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Status Details */
.status-details {
    margin-top: 20px;
    padding: 20px;
    background: #1e293b;
    border-radius: 10px;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.status-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background: #0f172a;
    border-radius: 8px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.status-item .label {
    font-weight: 600;
    color: #06b6d4;
}

.status-item .value {
    color: #94a3b8;
}

/* Challenge Section */
.challenge-section {
    margin-top: 25px;
    padding: 20px;
    background: rgba(6, 182, 212, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.challenge-section h4 {
    color: #06b6d4;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* Admin Sections */
.admin-section {
    margin-bottom: 25px;
    padding: 20px;
    background: #1e293b;
    border-radius: 10px;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.admin-section h4 {
    color: #06b6d4;
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 600;
}

.admin-section .form-group {
    display: flex;
    gap: 10px;
    align-items: end;
}

.admin-section .form-group input {
    flex: 1;
    margin-bottom: 0;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255,255,255,0.3);
    border-top: 5px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-success {
    color: #059669 !important;
}

.text-error {
    color: #dc2626 !important;
}

.text-warning {
    color: #d97706 !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 2rem;
    }

    .tab-container {
        flex-direction: column;
    }

    .tab-btn {
        padding: 15px;
        font-size: 14px;
    }

    .tab-content {
        padding: 20px;
    }

    .status-grid {
        grid-template-columns: 1fr;
    }

    .admin-section .form-group {
        flex-direction: column;
    }

    .admin-section .form-group input {
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .tab-content {
        padding: 15px;
    }

    .card {
        padding: 20px;
    }

    .form-group input {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}