/* =====================================================
   CEUKeeper — Design System & Styles
   ===================================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #4F46E5;
    --color-primary-light: #6366F1;
    --color-primary-dark: #4338CA;
    
    --color-success: #10B981;
    --color-success-light: #D1FAE5;
    --color-success-dark: #059669;
    
    --color-warning: #F59E0B;
    --color-warning-light: #FEF3C7;
    --color-warning-dark: #D97706;
    
    --color-danger: #EF4444;
    --color-danger-light: #FEE2E2;
    
    --color-info: #3B82F6;
    --color-info-light: #DBEAFE;
    
    /* Neutrals */
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-border: #E2E8F0;
    --color-text: #1E293B;
    --color-text-secondary: #64748B;
    --color-text-muted: #94A3B8;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', monospace;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* App Container */
.app {
    min-height: 100vh;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.logo-icon {
    font-size: 1.5rem;
}

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

.btn-add {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-add:hover {
    background: var(--color-primary-dark);
}

.btn-add span {
    font-size: 1.125rem;
    font-weight: 700;
}

.avatar {
    width: 36px;
    height: 36px;
    background: var(--color-primary-light);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Main Content */
.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl);
}

/* Summary Section */
.summary-section {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.summary-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.summary-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.summary-content {
    display: flex;
    flex-direction: column;
}

.summary-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Alerts Section */
.alerts-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.alert {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
}

.alert-warning {
    background: var(--color-warning-light);
    border: 1px solid var(--color-warning);
}

.alert-info {
    background: var(--color-info-light);
    border: 1px solid var(--color-info);
}

.alert-icon {
    font-size: 1.25rem;
}

.alert-content {
    flex: 1;
    font-size: 0.875rem;
}

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

.alert-content a:hover {
    text-decoration: underline;
}

.alert-dismiss {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-xs);
    line-height: 1;
}

.alert-dismiss:hover {
    color: var(--color-text);
}

/* Section Headers */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.section-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.btn-text {
    background: none;
    border: none;
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
}

.btn-text:hover {
    text-decoration: underline;
}

/* License Cards */
.licenses-section {
    margin-bottom: var(--space-2xl);
}

.license-cards {
    display: grid;
    gap: var(--space-md);
}

.license-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.license-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-lg);
}

.license-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.license-state {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.license-national {
    background: var(--color-success);
    font-size: 0.75rem;
}

.license-info h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.license-number {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.license-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-on-track {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

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

.status-at-risk {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.status-at-risk .status-dot {
    background: var(--color-warning);
}

.status-complete {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

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

/* Progress Bar */
.license-progress {
    margin-bottom: var(--space-lg);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
}

.progress-header span:first-child {
    font-weight: 600;
}

.progress-deadline {
    color: var(--color-text-secondary);
}

.progress-bar {
    height: 12px;
    background: var(--color-bg);
    border-radius: 6px;
    position: relative;
    overflow: visible;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    border-radius: 6px;
    transition: width 0.5s ease;
}

.progress-complete {
    background: linear-gradient(90deg, var(--color-success), var(--color-success-dark));
}

.progress-pace {
    position: absolute;
    top: -4px;
    width: 3px;
    height: 20px;
    background: var(--color-danger);
    border-radius: 2px;
}

.progress-footer {
    margin-top: var(--space-sm);
}

.pace-indicator {
    font-size: 0.75rem;
    color: var(--color-warning-dark);
}

.pace-good {
    color: var(--color-success-dark);
}

.pace-complete {
    color: var(--color-success-dark);
    font-weight: 500;
}

/* License Categories */
.license-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.category {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
}

.category-name {
    color: var(--color-text-secondary);
}

.category-progress {
    font-weight: 500;
    font-family: var(--font-mono);
}

/* Credits Section */
.credits-section {
    margin-bottom: var(--space-2xl);
}

.credits-list {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.credit-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.15s;
}

.credit-item:last-child {
    border-bottom: none;
}

.credit-item:hover {
    background: var(--color-bg);
}

.credit-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 48px;
    padding: var(--space-sm);
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.date-month {
    font-size: 0.625rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
}

.date-day {
    font-size: 1.125rem;
    font-weight: 700;
}

.credit-details {
    flex: 1;
}

.credit-details h4 {
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.credit-provider {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.credit-hours {
    text-align: center;
    min-width: 60px;
}

.hours-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.hours-label {
    font-size: 0.625rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.credit-licenses {
    display: flex;
    gap: var(--space-xs);
}

.license-badge {
    padding: 2px 8px;
    background: var(--color-primary-light);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 500px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin: var(--space-md);
}

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

.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
}

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

/* Form */
.credit-form {
    padding: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.checkbox-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
}

.file-upload {
    padding: var(--space-lg);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: border-color 0.2s;
}

.file-upload:hover {
    border-color: var(--color-primary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.btn-secondary {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
}

.btn-secondary:hover {
    background: var(--color-border);
}

.btn-primary {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
}

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

/* Responsive */
@media (max-width: 768px) {
    .summary-section {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .license-categories {
        grid-template-columns: 1fr;
    }
    
    .credit-item {
        flex-wrap: wrap;
    }
    
    .credit-licenses {
        width: 100%;
        margin-top: var(--space-sm);
        padding-left: 80px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .main {
        padding: var(--space-md);
    }
    
    .summary-section {
        grid-template-columns: 1fr;
    }
    
    .header {
        padding: var(--space-md);
    }
}