/* ============================================
   PESU ACADEMY COURSE DOWNLOADER - ADVANCED CSS
   Ultra-modern, responsive design with advanced features
   ============================================ */

/* ============================================
   CSS CUSTOM PROPERTIES & DESIGN TOKENS
   ============================================ */

:root {
    /* Color Palette */
    --color-primary: #6366f1;
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;
    --color-secondary: #ec4899;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    
    /* Background & Surfaces */
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-surface: #1e293b;
    --color-surface-hover: #293548;
    
    /* Text Colors */
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Border & Divider */
    --color-border: #475569;
    --color-border-light: #334155;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: 'Courier New', monospace;
    --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;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    
    /* Z-index */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal: 2000;
}

/* ============================================
   RESET & GLOBAL STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--color-bg) 0%, #1a1f3a 100%);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    background-attachment: fixed;
    overflow-x: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 100%;
}


/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

code {
    background: var(--color-surface);
    color: var(--color-primary-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

/* ============================================
   LAYOUT - CONTAINER & MAIN
   ============================================ */

.main-content {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin: 0 auto;
    width: 100%;
    max-width: 1200px;
}

/* ============================================
   HEADER STYLES
   ============================================ */

.header {
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-hover) 100%);
    border-bottom: 1px solid var(--color-border-light);
    padding: var(--spacing-xl) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
    background-color: rgba(30, 41, 59, 0.7);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--spacing-lg);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    font-size: 3rem;
    animation: float 3s ease-in-out infinite;
}

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

.logo-section h1 {
    margin: 0;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-2xl);
}

.logo-section p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.header-status {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-success);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ============================================
   STEP INDICATOR
   ============================================ */

.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.step-number {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    position: relative;
}

.step-item.active .step-number {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.15);
}

.step-item:hover .step-number {
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.step-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-align: center;
    transition: all var(--transition-base);
}

.step-item.active .step-label {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.step-connector {
    width: 3rem;
    height: 2px;
    background: var(--color-border-light);
    position: relative;
}

@media (max-width: 768px) {
    .step-connector {
        display: none;
    }
    
    .step-indicator {
        gap: var(--spacing-md);
    }
}

/* ============================================
   PANELS CONTAINER & INDIVIDUAL PANELS
   ============================================ */

.panels-container {
    position: relative;
    margin-bottom: var(--spacing-xl);
    min-height: 500px;
}

.panel {
    display: none;
    animation: fadeInUp 300ms ease-out;
    position: absolute;
    width: 100%;
    opacity: 0;
    pointer-events: none;
}

.panel.active {
    display: block;
    opacity: 1;
    pointer-events: auto;
    position: relative;
    animation: fadeInUp 300ms ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.panel-content {
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-hover) 100%);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.panel-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.panel-content h2 {
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.panel-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   LOGIN SECTION
   ============================================ */

.login-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.credentials-info {
    margin-bottom: var(--spacing-lg);
}

.info-box {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-info);
}

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

/* ============================================
   COURSE FILTERS & SELECTION
   ============================================ */

.course-filters {
    display: grid;
    grid-template-columns: 1fr 200px;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.filter-group {
    position: relative;
}

.filter-input,
.filter-select {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.filter-input:focus,
.filter-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-input::placeholder {
    color: var(--color-text-muted);
}

/* ============================================
   COURSES LIST
   ============================================ */

.courses-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.course-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

.course-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.course-card:hover::before {
    left: 100%;
}

.course-card.selected {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(236, 72, 153, 0.1));
    border-color: var(--color-primary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.course-code {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.course-name {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.course-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.course-card.selected .course-name {
    color: var(--color-primary-light);
}

/* ============================================
   PAGINATION
   ============================================ */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.pagination-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: var(--font-weight-medium);
}

.pagination-btn:hover,
.pagination-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

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

/* ============================================
   SELECTION GROUPS
   ============================================ */

.resource-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.selection-group h3 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    color: var(--color-primary-light);
}

.units-list,
.resources-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.checkbox-item:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-hover);
}

.checkbox-item input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.checkbox-label {
    font-weight: var(--font-weight-medium);
    flex: 1;
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-label {
    color: var(--color-primary-light);
}

.selection-summary {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.selection-summary p {
    margin: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */

.download-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.progress-info {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.info-row .label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
}

.info-row .value {
    color: var(--color-primary-light);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-mono);
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 2.5rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    width: 0%;
    transition: width 300ms ease-out;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: var(--font-weight-bold);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    z-index: var(--z-base);
}

.current-file-info {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.current-file-info p {
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.btn:active::before {
    animation: ripple 600ms ease-out;
}

@keyframes ripple {
    to {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

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

.btn-secondary:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

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

.btn-icon {
    font-size: var(--font-size-lg);
}

/* ============================================
   BUTTON GROUP
   ============================================ */

.button-group {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .button-group {
        flex-direction: column;
    }
    
    .button-group .btn {
        width: 100%;
    }
}

/* ============================================
   STATUS MESSAGES
   ============================================ */

.status-message {
    min-height: 2rem;
    padding: var(--spacing-md);
    background: transparent;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
}

.status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
    animation: slideIn 300ms ease-out;
}

.status-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
    animation: slideIn 300ms ease-out;
}

.status-message.info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--color-info);
    animation: slideIn 300ms ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   SELECTED COURSE INFO & SUMMARY
   ============================================ */

.selected-course-info,
.selection-summary {
    margin-top: var(--spacing-lg);
    animation: slideIn 300ms ease-out;
}

.info-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    flex-wrap: wrap;
}

.badge-label {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
}

.badge-value {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-light);
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    gap: var(--spacing-md);
}

.spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.spinner + p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   NAVIGATION
   ============================================ */

.navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

@media (max-width: 600px) {
    .navigation {
        flex-direction: column-reverse;
    }
    
    .navigation .btn {
        width: 100%;
    }
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-hover) 100%);
    border-top: 1px solid var(--color-border-light);
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: auto;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .panel-content {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .resource-selection {
        grid-template-columns: 1fr;
    }
    
    .course-filters {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .logo-section h1 {
        font-size: var(--font-size-xl);
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .courses-list {
        grid-template-columns: 1fr;
    }
    
    .panel-content {
        padding: var(--spacing-lg);
    }
    
    .step-indicator {
        gap: var(--spacing-md);
    }
    
    .step-number {
        width: 3rem;
        height: 3rem;
        font-size: var(--font-size-base);
    }
}

@media (max-width: 640px) {
    .container {
        min-height: auto;
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .panel-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .step-label {
        font-size: var(--font-size-xs);
    }
    
    .progress-bar {
        height: 2rem;
    }
    
    .info-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.gap-md {
    gap: var(--spacing-md);
}

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    body {
        background: white;
        color: black;
    }
    
    .header,
    .footer,
    .navigation,
    .btn {
        display: none;
    }
    
    .panel-content {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}