:root {
    --primary: #F0B90B;
    --primary-hover: #d4a30a;
    --secondary: #181A20;
    --background: #0B0E11;
    --card-bg: #1E2329;
    --card-border: #2B3139;
    --success: #2EBD85;
    --danger: #F84960;
    --warning: #F0B90B;
    --text-primary: #FFFFFF;
    --text-secondary: #848E9C;
    --text-muted: #5E6673;
    --input-bg: #2B3139;
    --input-border: #3C4047;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #00D9E8, #0066FF);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--card-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: #3C4047;
}

.btn-gold {
    background: linear-gradient(135deg, var(--primary), #D4A30A);
    color: #000;
}

.btn-gold:hover {
    opacity: 0.9;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: rgba(248, 73, 96, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.alert-success {
    background: rgba(46, 189, 133, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--card-border);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 8px;
}

.logo-icon {
    font-size: 32px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    padding: 14px 16px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

.forgot-link {
    color: var(--primary);
    font-size: 13px;
    text-decoration: none;
}

.forgot-link:hover {
    text-decoration: underline;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--card-border);
}

.auth-footer p {
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.header {
    background: var(--secondary);
    border-bottom: 1px solid var(--card-border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.coin-display {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--card-border);
}

.coin-icon {
    font-size: 16px;
}

.coin-count {
    font-weight: 700;
    color: var(--primary);
    font-size: 16px;
}

.coin-label {
    color: var(--text-muted);
    font-size: 12px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-name {
    color: var(--text-secondary);
    font-size: 14px;
}

.logout-btn {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
}

.logout-btn:hover {
    color: var(--danger);
}

.main-content {
    padding: 24px 0 40px;
}

.tabs {
    display: flex;
    gap: 8px;
    background: var(--card-bg);
    padding: 6px;
    border-radius: 12px;
    margin-bottom: 24px;
}

.tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab.active {
    background: var(--card-border);
    color: var(--text-primary);
}

.chart-section {
    margin-bottom: 24px;
}

.capture-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.btn-capture {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px 24px;
    background: linear-gradient(135deg, #00D9E8, #0066FF);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-capture:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 217, 232, 0.3);
}

.btn-upload-alt {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px 24px;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 2px solid var(--card-border);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-upload-alt:hover {
    border-color: var(--primary);
    background: rgba(240, 185, 11, 0.1);
}

.capture-icon, .upload-icon-btn {
    font-size: 24px;
}

@media (max-width: 480px) {
    .capture-buttons {
        grid-template-columns: 1fr;
    }
}

.chart-upload-area {
    background: var(--card-bg);
    border: 2px dashed var(--card-border);
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.chart-upload-area:hover {
    border-color: var(--primary);
    background: rgba(240, 185, 11, 0.05);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.upload-icon {
    font-size: 48px;
}

.upload-hint {
    color: var(--text-muted);
    font-size: 13px;
}

.chart-preview {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.chart-preview img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 300px;
    object-fit: contain;
}

.analysis-section {
    margin-bottom: 24px;
}

.analysis-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

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

.status-icon.analyzing {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.signal-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--card-border);
}

.signal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.signal-label {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.signal-direction {
    font-size: 32px;
    font-weight: 700;
}

.signal-direction.call {
    color: var(--success);
}

.signal-direction.put {
    color: var(--danger);
}

.signal-direction.avoid {
    color: var(--warning);
}

.confidence-bar {
    position: relative;
    height: 40px;
    background: var(--input-bg);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 24px;
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), #2EBD85);
    border-radius: 20px;
    transition: width 1s ease-out;
}

.confidence-fill.put {
    background: linear-gradient(90deg, var(--danger), #F84960);
}

.confidence-fill.avoid {
    background: linear-gradient(90deg, var(--warning), #D4A30A);
}

.confidence-text {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-weight: 700;
    font-size: 16px;
}

.signal-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.detail-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.detail-item {
    background: var(--input-bg);
    padding: 16px;
    border-radius: 12px;
}

.detail-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    font-size: 16px;
    font-weight: 600;
}

.detail-value.bullish,
.detail-value.call {
    color: var(--success);
}

.detail-value.bearish,
.detail-value.put {
    color: var(--danger);
}

.signal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.not-chart-section {
    margin-bottom: 24px;
}

.not-chart-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    border: 1px solid var(--danger);
}

.not-chart-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.not-chart-card h3 {
    color: var(--danger);
    margin-bottom: 8px;
}

.not-chart-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.loading-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px;
}

.loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--card-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.buy-coins-section {
    background: linear-gradient(135deg, rgba(240, 185, 11, 0.1), rgba(240, 185, 11, 0.05));
    border: 1px solid rgba(240, 185, 11, 0.3);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.buy-coins-section h3 {
    color: var(--primary);
    margin-bottom: 8px;
}

.buy-coins-section p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 14px;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
}

.modal-content {
    position: relative;
    background: var(--card-bg);
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--card-border);
}

.modal-large {
    max-width: 600px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
}

.modal-header h3 {
    font-size: 18px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--card-border);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.qr-section {
    text-align: center;
    margin-bottom: 24px;
}

.qr-image {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    margin-bottom: 12px;
    background: white;
    padding: 8px;
}

.binance-id {
    color: var(--text-secondary);
    font-size: 14px;
}

.price-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.price-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--input-bg);
    border-radius: 12px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
}

.price-option:hover,
.price-option.selected {
    border-color: var(--primary);
}

.price-option .coins {
    font-weight: 600;
}

.price-option .price {
    color: var(--primary);
    font-weight: 700;
}

.payment-proof h4 {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.payment-proof input[type="file"] {
    width: 100%;
    padding: 12px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.admin-contact {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 12px;
}

.analysis-logic {
    background: var(--input-bg);
    padding: 16px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.8;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 400px;
    overflow-y: auto;
}

.admin-page .container {
    max-width: 1200px;
}

.admin-header {
    background: linear-gradient(135deg, #1A1A2E, #16213E);
}

.admin-badge {
    background: var(--primary);
    color: #000;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.admin-main {
    padding: 24px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border: 1px solid var(--card-border);
}

.stat-icon {
    font-size: 32px;
}

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

.stat-value {
    font-size: 24px;
    font-weight: 700;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.admin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.admin-tab {
    padding: 12px 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.admin-tab.active {
    background: var(--primary);
    color: #000;
    border-color: var(--primary);
}

.table-container {
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--card-border);
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

.admin-table th {
    background: var(--input-bg);
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.admin-table td {
    font-size: 14px;
}

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

.coin-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(240, 185, 11, 0.1);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 13px;
}

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active {
    background: rgba(46, 189, 133, 0.1);
    color: var(--success);
}

.status-badge.banned {
    background: rgba(248, 73, 96, 0.1);
    color: var(--danger);
}

.status-badge.pending {
    background: rgba(240, 185, 11, 0.1);
    color: var(--warning);
}

.status-badge.completed {
    background: rgba(46, 189, 133, 0.1);
    color: var(--success);
}

.actions {
    display: flex;
    gap: 8px;
}

.admin-login .auth-card {
    border: 1px solid rgba(240, 185, 11, 0.3);
}

@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        gap: 12px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .admin-table th,
    .admin-table td {
        padding: 12px 8px;
        font-size: 13px;
    }

    .actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 24px;
    }

    .signal-actions {
        grid-template-columns: 1fr;
    }

    .detail-row {
        grid-template-columns: 1fr;
    }

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