/* ========================================
   MODERN CSS DESIGN SYSTEM
   Clean, minimal, fast-loading design
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-hover: #1d4ed8;
    --primary-rgb: 37, 99, 235;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background: #fefefe;
    --surface: #ffffff;
    --surface-hover: #f8fafc;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* Typography */
    --font-family: 'Inter', -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;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;

    /* Borders & Shadows */
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* === RESET & BASE === */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === LANDING PAGE === */
.landing-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
}

.hero-container {
    padding: var(--spacing-20) var(--spacing-4);
    text-align: center;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 48rem;
    margin: 0 auto;
}

.logo-container {
    margin-bottom: var(--spacing-6);
}

.logo {
    font-size: 4rem;
    margin-bottom: var(--spacing-4);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-4);
    letter-spacing: -0.025em;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-12);
}

/* === FEATURES SECTION === */
.features-container {
    background: white;
    padding: var(--spacing-20) var(--spacing-4);
}

.features-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-12);
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
    max-width: 80rem;
    margin: 0 auto;
}

.feature-card {
    background: var(--surface);
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-4);
    text-align: center;
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    text-align: center;
    color: var(--text-primary);
}

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

/* === LOGIN SECTION === */
.login-container {
    background: var(--surface);
    padding: var(--spacing-20) var(--spacing-4);
}

.login-card {
    max-width: 28rem;
    margin: 0 auto;
    background: var(--surface);
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
}

.login-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.login-subtitle {
    font-size: var(--font-size-sm);
    text-align: center;
    margin-bottom: var(--spacing-8);
    color: var(--text-secondary);
}

.alert {
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-6);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-error {
    background-color: #fee2e2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.alert-content strong {
    display: block;
    margin-bottom: var(--spacing-1);
}

.input-group {
    margin-bottom: var(--spacing-6);
    position: relative;
}

.input-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.input-field {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    background-color: var(--surface);
    transition: all 0.2s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group.focused .input-field {
    border-color: var(--primary-color);
}

.login-button {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    min-height: 48px;
}

.login-button:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

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

.button-loader {
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

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

.attempts-remaining {
    text-align: center;
    margin-top: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.attempts-count {
    font-weight: 600;
    color: var(--warning-color);
}

.error-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background-color: #fee2e2;
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
    color: #991b1b;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-4);
}

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

/* === FOOTER === */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-8) var(--spacing-4);
    text-align: center;
}

.footer-content p {
    margin-bottom: var(--spacing-2);
}

.footer-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
}

/* === DASHBOARD PAGE === */
.dashboard-page {
    background-color: var(--background);
    min-height: 100vh;
}

.dashboard-header {
    background: white;
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-4) var(--spacing-6);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 100rem;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.header-info h1 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.header-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.status-dot.connected {
    background-color: var(--success-color);
}

.status-dot.disconnected {
    background-color: var(--error-color);
}

.status-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--surface-hover);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    transition: all 0.2s ease;
}

.logout-btn:hover {
    background-color: var(--error-color);
    color: white;
    border-color: var(--error-color);
}

/* === DASHBOARD LAYOUT === */
.dashboard-container {
    max-width: 100rem;
    margin: 0 auto;
    padding: var(--spacing-6);
    display: grid;
    gap: var(--spacing-6);
    grid-template-columns: 320px 1fr;
}

.control-panel {
    position: sticky;
    top: var(--spacing-6);
    height: fit-content;
}

.content-grid {
    display: grid;
    gap: var(--spacing-6);
}

/* === CARDS === */
.panel-card, .content-card {
    background: white;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.panel-title, .card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.panel-card {
    padding: var(--spacing-6);
}

.panel-title {
    margin-bottom: var(--spacing-6);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: between;
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--border-light);
    background-color: var(--surface-hover);
}

.card-badge {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.card-content {
    padding: var(--spacing-6);
}

.card-actions {
    display: flex;
    gap: var(--spacing-2);
}

/* === CONTROL BUTTONS === */
.control-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.control-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px;
}

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

.control-button.primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.control-button.secondary {
    background-color: var(--secondary-color);
    color: white;
}

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

.control-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background-color: var(--surface-hover);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

/* === SYSTEM STATUS === */
.system-status {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
}

.status-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.status-value {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.status-value.ready {
    color: var(--success-color);
}

.status-value.running {
    color: var(--warning-color);
}

/* === PROFESSIONAL CARD DESIGN === */
.professional-card {
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: all 0.2s ease;
}

.professional-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.professional-header {
    padding: 20px 24px 16px 24px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-bottom: 1px solid var(--border-light);
}

.header-title-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.item-count {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(100, 116, 139, 0.1);
    padding: 4px 8px;
    border-radius: 6px;
}

/* === DATA TABLE DESIGN === */
.data-table {
    display: flex;
    flex-direction: column;
}

.table-header {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1fr;
    gap: 16px;
    padding: 16px 24px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border-light);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748b;
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1fr 1fr;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.15s ease;
    position: relative;
}

.table-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: transparent;
    transition: all 0.2s ease;
}

.table-row:hover {
    background: #f8fafc;
}

.table-row.row-success::before {
    background: #10b981;
}

.table-row.row-warning::before {
    background: #f59e0b;
}

.table-row.row-error::before {
    background: #ef4444;
}

.table-row:last-child {
    border-bottom: none;
}

.package-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.package-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #e2e8f0 0%, #f1f5f9 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748b;
}

.package-text {
    min-width: 0;
}

.package-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 2px;
}

.package-id {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
}

.detail-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 8px;
}

.detail-group:last-child {
    margin-bottom: 0;
}

.detail-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.detail-value {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

/* === STATUS PILLS === */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.status-pill.success {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-pill.warning {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-pill.error {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* === ACTION BUTTONS === */
.action-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.action-button:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.action-button.secondary {
    background: #f1f5f9;
    border-color: #e2e8f0;
    color: #475569;
}

.action-button.secondary:hover {
    background: #e2e8f0;
    border-color: #cbd5e1;
    color: #334155;
    transform: translateY(-1px);
}

/* === SESSION LOGS DESIGN === */
.date-group-header {
    display: flex;
    align-items: center;
    padding: 16px 24px 8px 24px;
    gap: 12px;
}

.date-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, #e2e8f0, transparent);
}

.date-text {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 8px;
    background: var(--surface);
}

.session-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-light);
    text-decoration: none;
    color: inherit;
    transition: all 0.15s ease;
    position: relative;
}

.session-row:hover {
    background: #f8fafc;
    padding-left: 28px;
}

.session-row:last-child {
    border-bottom: none;
}

.session-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.session-content {
    flex: 1;
    min-width: 0;
}

.session-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2px;
}

.session-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.session-size {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(100, 116, 139, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.session-time {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
}

.session-arrow {
    color: var(--text-secondary);
    opacity: 0.6;
    transition: all 0.15s ease;
}

.session-row:hover .session-arrow {
    opacity: 1;
    transform: translateX(2px);
}

/* === PROFESSIONAL EMPTY STATES === */
.empty-state-pro {
    padding: 48px 24px;
    text-align: center;
}

.empty-icon-pro {
    margin: 0 auto 16px;
    width: 48px;
    height: 48px;
    color: #cbd5e1;
}

.empty-state-pro h3 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.empty-state-pro p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.history-item.error {
    border-left-color: var(--error-color);
}

.history-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.history-meta {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.status-badge {
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.status-badge.success {
    background-color: #dcfce7;
    color: #166534;
}

.status-badge.warning {
    background-color: #fef3c7;
    color: #92400e;
}

.status-badge.error {
    background-color: #fee2e2;
    color: #991b1b;
}

/* === EMPTY STATE === */
.empty-state {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-4);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    color: var(--text-primary);
}

.empty-state p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* === LOGS === */
.log-container {
    height: 400px;
    overflow-y: auto;
    background: #0f172a;
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.log-entry {
    margin-bottom: var(--spacing-2);
    display: flex;
    gap: var(--spacing-2);
}

.log-timestamp {
    color: #60a5fa;
    font-weight: 600;
    flex-shrink: 0;
}

.log-message {
    color: #e2e8f0;
}

.log-entry.success .log-message {
    color: #34d399;
}

.log-entry.warning .log-message {
    color: #fbbf24;
}

.log-entry.error .log-message {
    color: #f87171;
}

.log-entry.info .log-message {
    color: #93c5fd;
}

/* === PROGRESS OVERLAY === */
.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.progress-content {
    background: white;
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    text-align: center;
    max-width: 24rem;
}

.progress-icon {
    margin-bottom: var(--spacing-4);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.progress-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.progress-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* === MODALS === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 28rem;
    width: 90%;
}

.modal-header {
    padding: var(--spacing-6);
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.modal-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.modal-content {
    padding: var(--spacing-6);
}

.modal-message {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-3);
}

.modal-btn {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.modal-btn.secondary {
    background-color: var(--surface-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* Old styles removed - replaced with modern design above */

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    .dashboard-container {
        grid-template-columns: 1fr;
        padding: var(--spacing-4);
    }

    .control-panel {
        position: static;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }

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

    /* Professional card responsive */
    .professional-header {
        padding: 16px 20px 12px 20px;
    }

    .card-title {
        font-size: 16px;
    }

    /* Data table responsive */
    .table-header {
        display: none;
    }

    .table-row {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 16px 20px;
    }

    .col-package {
        order: 1;
    }

    .col-status {
        order: 2;
        justify-self: start;
    }

    .col-details {
        order: 3;
        display: flex;
        gap: 16px;
    }

    .col-actions {
        order: 4;
        justify-self: start;
    }

    /* Session logs responsive */
    .session-row {
        padding: 12px 20px;
        gap: 12px;
    }

    .session-icon {
        width: 32px;
        height: 32px;
    }

    .date-group-header {
        padding: 12px 20px 6px 20px;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--spacing-6);
    }

    .hero-container {
        padding: var(--spacing-12) var(--spacing-4);
    }
}