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

:root {
    --primary-color: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --bg-dark: #1e293b;
    --bg-light: #f8fafc;
    --text-dark: #0f172a;
    --text-light: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-dark);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 40px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
}

.control-panel {
    display: flex;
    gap: 15px;
    padding: 25px 40px;
    background: var(--bg-light);
    border-bottom: 2px solid var(--border-color);
    align-items: center;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-small {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--bg-dark);
    color: white;
    transition: all 0.2s ease;
}

.btn-small:hover {
    background: #334155;
}

.status-badge {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: white;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    font-weight: 600;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-light);
}

.status-badge.running .status-dot {
    background: var(--success-color);
    animation: pulse 2s infinite;
}

.status-badge.stopped .status-dot {
    background: var(--danger-color);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

/* Statistics Panel */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    padding: 25px 40px;
    background: var(--bg-light);
    border-bottom: 2px solid var(--border-color);
}

.stat-card {
    background: white;
    padding: 18px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-left: 4px solid var(--primary-color);
}

.stat-card.stat-success {
    border-left-color: var(--success-color);
}

.stat-card.stat-success .stat-value {
    color: var(--success-color);
}

.stat-card.stat-error {
    border-left-color: var(--danger-color);
}

.stat-card.stat-error .stat-value {
    color: var(--danger-color);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 30px 40px;
}

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

section h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Timeline Styles - Historia iteracji */
.timeline {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 20px;
    min-height: 500px;
    max-height: 700px;
    overflow-y: auto;
}

.timeline-empty {
    text-align: center;
    color: var(--text-light);
    padding: 60px 20px;
    font-size: 1.1rem;
}

.iteration-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 5px solid var(--warning-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.iteration-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateX(3px);
}

.iteration-card.success {
    border-left-color: var(--success-color);
}

.iteration-card.error {
    border-left-color: var(--danger-color);
}

.iteration-card.in_progress {
    border-left-color: var(--warning-color);
    animation: pulse-card 2s infinite;
}

@keyframes pulse-card {
    0%, 100% {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    50% {
        box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
    }
}

.iteration-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.iteration-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-dark);
}

.iteration-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.iteration-status.in_progress {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.iteration-status.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.iteration-status.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.iteration-buyer {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.iteration-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.iteration-detail {
    font-size: 0.85rem;
}

.iteration-detail-label {
    color: var(--text-light);
    font-weight: 500;
}

.iteration-detail-value {
    color: var(--text-dark);
    font-weight: 600;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
}

.iteration-error {
    margin-top: 10px;
    padding: 10px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 6px;
    color: var(--danger-color);
    font-size: 0.9rem;
}

.iteration-time {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 8px;
}

/* Logs Styles */
.logs-section h2 {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logs-controls {
    display: flex;
    gap: 8px;
}

.logs-container {
    background: #1e1e1e;
    border-radius: 12px;
    padding: 20px;
    min-height: 500px;
    max-height: 700px;
    overflow-y: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.log-entry {
    padding: 6px 10px;
    margin-bottom: 3px;
    border-radius: 4px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    border-left: 3px solid transparent;
}

.log-timestamp {
    color: #808080;
    font-weight: 600;
    min-width: 70px;
}

.log-level {
    font-weight: 700;
    min-width: 70px;
}

.log-message {
    color: #d4d4d4;
    flex: 1;
    word-break: break-word;
}

.log-info {
    border-left-color: var(--info-color);
}

.log-info .log-level {
    color: var(--info-color);
}

.log-warning {
    border-left-color: var(--warning-color);
}

.log-warning .log-level {
    color: var(--warning-color);
}

.log-error {
    border-left-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

.log-error .log-level {
    color: var(--danger-color);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--bg-dark);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 400px;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

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

.toast.error {
    background: var(--danger-color);
}

.toast.warning {
    background: var(--warning-color);
}

/* Scrollbar Styling */
.timeline::-webkit-scrollbar,
.logs-container::-webkit-scrollbar {
    width: 8px;
}

.timeline::-webkit-scrollbar-track {
    background: transparent;
}

.timeline::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.timeline::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

.logs-container::-webkit-scrollbar-thumb {
    background: #404040;
    border-radius: 4px;
}

.logs-container::-webkit-scrollbar-thumb:hover {
    background: #505050;
}

/* ========================================================================
   Login Page
   ======================================================================== */

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

.login-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.login-header h1 {
    margin: 0 0 8px 0;
    font-size: 1.8rem;
}

.login-header p {
    margin: 0;
    opacity: 0.85;
    font-size: 0.95rem;
}

.login-body {
    padding: 40px 30px;
    text-align: center;
}

.login-prompt {
    color: var(--text-light);
    margin-bottom: 28px;
    font-size: 0.95rem;
}

.google-signin-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.google-signin-btn:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
}

.google-icon {
    flex-shrink: 0;
}

.login-footer {
    padding: 20px 30px;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* Flash messages */
.flash-messages {
    padding: 0 30px;
    margin-top: 20px;
}

.flash-message {
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.flash-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.flash-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

/* ========================================================================
   User Info in Header
   ======================================================================== */

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.role-badge {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-admin {
    background: rgba(245, 158, 11, 0.3);
    color: #fbbf24;
}

.role-viewer {
    background: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

.btn-logout {
    background: rgba(239, 68, 68, 0.2) !important;
    color: #fca5a5 !important;
    border-color: rgba(239, 68, 68, 0.3) !important;
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.4) !important;
}

.btn-admin {
    background: rgba(245, 158, 11, 0.2) !important;
    color: #fcd34d !important;
    border-color: rgba(245, 158, 11, 0.3) !important;
}

.btn-admin:hover {
    background: rgba(245, 158, 11, 0.4) !important;
}

.btn-back {
    background: rgba(59, 130, 246, 0.2) !important;
    color: #93c5fd !important;
    border-color: rgba(59, 130, 246, 0.3) !important;
}

.btn-back:hover {
    background: rgba(59, 130, 246, 0.4) !important;
}

/* ========================================================================
   Admin Panel
   ======================================================================== */

.admin-panel {
    padding: 30px 40px;
}

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

.admin-header h2 {
    margin: 0;
    color: var(--text-dark);
}

.user-count {
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.85rem;
    margin-left: 8px;
}

.table-wrapper {
    overflow-x: auto;
}

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

.users-table th,
.users-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.users-table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-light);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.users-table tr:hover {
    background: rgba(37, 99, 235, 0.03);
}

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

.user-avatar-small {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-badge {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
}

.status-inactive {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-light);
}

.actions-cell {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.btn-action {
    font-size: 0.8rem !important;
    padding: 4px 10px !important;
}

.btn-danger-small {
    background: rgba(239, 68, 68, 0.1) !important;
    color: var(--danger-color) !important;
    border-color: rgba(239, 68, 68, 0.3) !important;
}

.btn-danger-small:hover {
    background: rgba(239, 68, 68, 0.2) !important;
}

.btn-success-small {
    background: rgba(16, 185, 129, 0.1) !important;
    color: var(--success-color) !important;
    border-color: rgba(16, 185, 129, 0.3) !important;
}

.btn-success-small:hover {
    background: rgba(16, 185, 129, 0.2) !important;
}

.text-muted {
    color: var(--text-light);
    font-size: 0.85rem;
    font-style: italic;
}