/* Modern Professional CSS for Mālama i ka Hale Training Module */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Professional Color Palette - Inspired by Hawaiian Ocean and Sky */
    --primary-blue: #0f4c75;
    --primary-blue-light: #3282b8;
    --primary-blue-dark: #0a3d5c;
    --accent-teal: #0d9488;
    --accent-teal-light: #14b8a6;
    --accent-green: #065f46;
    --accent-green-light: #059669;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --error: #ef4444;
    --error-light: #fee2e2;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --ochre-yellow: #cc8400;
    --ochre-yellow-light: #ffcc33;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-green) 100%);
    --gradient-background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 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;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* 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-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gradient-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header Styles */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4) var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-6);
}

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

.brand-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.2;
}

.brand-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
}

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

.progress-text {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
    white-space: nowrap;
}

.progress-bar {
    width: 200px;
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    transition: width var(--transition-normal);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

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

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-8) var(--spacing-6);
    min-height: calc(100vh - 140px);
}

.content-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
}

.screen-wrapper {
    position: relative;
    min-height: 600px;
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-12);
    overflow: hidden;
}

.screen-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
}

/* Screen Animations */
.screen {
    opacity: 0;
    transform: translateX(30px);
    transition: all var(--transition-normal);
}

.screen.active {
    opacity: 1;
    transform: translateX(0);
}

.screen.exiting {
    opacity: 0;
    transform: translateX(-30px);
}

/* Typography Styles */
.screen h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
}

.screen h2 {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-6);
    line-height: 1.2;
}

.screen h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-blue-light);
    margin-bottom: var(--spacing-4);
}

.screen p {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: var(--spacing-6);
}

/* Card Styles */
.card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    padding: var(--spacing-6);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

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

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* List Styles */
.objective-list, .duty-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.objective-item, .duty-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-teal);
    transition: all var(--transition-fast);
}

.objective-item:hover, .duty-item:hover {
    background: var(--gray-100);
    transform: translateX(4px);
}

.check-icon {
    width: 20px;
    height: 20px;
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Grid Layouts */
.two-column-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    margin: var(--spacing-8) 0;
}

.duties-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6);
    margin: var(--spacing-8) 0;
}

/* Quiz Styles */
.quiz-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.quiz-question {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--gray-800);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.quiz-option {
    width: 100%;
    padding: var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-align: left;
    font-size: var(--font-size-base);
}

.quiz-option:hover:not(:disabled) {
    border-color: var(--primary-blue-light);
    background: var(--gray-50);
    transform: translateY(-1px);
}

.quiz-option:disabled {
    cursor: not-allowed;
}

.quiz-option.correct {
    border-color: var(--success);
    background: var(--success-light);
    color: var(--gray-800);
}

.quiz-option.incorrect {
    border-color: var(--error);
    background: var(--error-light);
    color: var(--gray-800);
}

.option-letter {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid currentColor;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.quiz-feedback {
    margin-top: var(--spacing-6);
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

.quiz-feedback.correct {
    background: var(--success-light);
    color: var(--gray-800);
    border-left: 4px solid var(--success);
}

.quiz-feedback.incorrect {
    background: var(--error-light);
    color: var(--gray-800);
    border-left: 4px solid var(--error);
}

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

/* Special Content Sections */
.leadership-message {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    border-left: 6px solid var(--primary-blue);
    position: relative;
    overflow: hidden;
}

.leadership-message::before {
    content: '"';
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-6);
    font-size: 4rem;
    color: var(--primary-blue-light);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.leadership-content {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--gray-700);
    white-space: pre-line;
    margin-bottom: var(--spacing-6);
    position: relative;
    z-index: 1;
}

.leadership-signature {
    font-weight: 600;
    color: var(--primary-blue);
    border-top: 1px solid var(--gray-300);
    padding-top: var(--spacing-4);
}

.summary-section {
    background: var(--gradient-background);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    margin: var(--spacing-6) 0;
}

.next-module-preview {
    background: var(--primary-blue-light);
    color: var(--ochre-yellow-light);
    padding: var(--spacing-6);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-8);
}

.next-module-preview p {
    color: var(--ochre-yellow-light);
    font-weight: 500;
    margin-bottom: 0;
}

/* Navigation Footer */
.navigation-footer {
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-4) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-6);
}

.nav-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    min-width: 120px;
    justify-content: center;
}

.nav-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.nav-button-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.nav-button-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.nav-button-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.nav-button-secondary:hover:not(:disabled) {
    border-color: var(--primary-blue-light);
    color: var(--primary-blue);
    transform: translateY(-1px);
}

/* Screen Indicators */
.screen-indicators {
    display: flex;
    gap: var(--spacing-2);
    align-items: center;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.indicator.completed {
    background: var(--success);
    box-shadow: 0 0 0 2px var(--success-light);
}

.indicator.current {
    background: var(--primary-blue);
    box-shadow: 0 0 0 2px var(--primary-blue-light);
    transform: scale(1.2);
}

.indicator.upcoming {
    background: var(--gray-300);
}

.indicator:hover {
    transform: scale(1.1);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        padding: var(--spacing-3) var(--spacing-4);
        gap: var(--spacing-4);
    }
    
    .brand-title {
        font-size: var(--font-size-lg);
    }
    
    .brand-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .progress-bar {
        width: 120px;
    }
    
    .main-content {
        padding: var(--spacing-4);
    }
    
    .screen-wrapper {
        padding: var(--spacing-6);
        min-height: 500px;
    }
    
    .screen h1 {
        font-size: var(--font-size-3xl);
    }
    
    .screen h2 {
        font-size: var(--font-size-2xl);
    }
    
    .two-column-grid,
    .duties-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .nav-container {
        padding: 0 var(--spacing-4);
        gap: var(--spacing-4);
    }
    
    .nav-button {
        min-width: 100px;
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .screen-indicators {
        gap: var(--spacing-1);
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 480px) {
    .header-brand {
        gap: var(--spacing-2);
    }
    
    .brand-icon {
        width: 40px;
        height: 40px;
    }
    
    .brand-title {
        font-size: var(--font-size-base);
    }
    
    .progress-text {
        font-size: var(--font-size-xs);
    }
    
    .progress-bar {
        width: 80px;
    }
    
    .screen-wrapper {
        padding: var(--spacing-4);
    }
    
    .screen h1 {
        font-size: var(--font-size-2xl);
    }
    
    .nav-button {
        min-width: 80px;
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-xs);
    }
}

/* Print Styles */
@media print {
    .header,
    .navigation-footer,
    .loading-overlay {
        display: none;
    }
    
    .main-content {
        padding: 0;
    }
    
    .screen-wrapper {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --gray-100: #e0e0e0;
        --gray-200: #c0c0c0;
        --gray-300: #a0a0a0;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}