/* Chronicles of AI in Canadian Healthcare - Global Styles */
/* Design: Futuristic medical dashboards with healthcare blue gradient */

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

:root {
    /* Color Palette */
    --healthcare-blue-dark: #003366;
    --healthcare-blue-light: #00ACC1;
    --accent-green: #00E676;
    --silver: #B0BEC5;
    --white: #FAFAFA;
    
    /* Typography */
    --font-title: 'Lora', serif;
    --font-body: 'Noto Sans', sans-serif;
    --font-label: 'JetBrains Mono', monospace;
    
    /* Sizing */
    --title-xl: 46px;
    --body-text: 18px;
    --caption-text: 14px;
    --line-height: 1.65;
    
    /* Layout Widths */
    --width-jumbo: 100vw;
    --width-wide: 1400px;
    --width-medium: 1000px;
    --width-compact: 720px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 96px;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--body-text);
    line-height: var(--line-height);
    color: #1a1a1a;
    background: var(--white);
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--title-xl);
    background: linear-gradient(135deg, var(--healthcare-blue-dark), var(--healthcare-blue-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 38px;
    color: var(--healthcare-blue-dark);
}

h3 {
    font-size: 32px;
    color: var(--healthcare-blue-dark);
}

h4 {
    font-size: 24px;
    color: var(--healthcare-blue-light);
}

h5 {
    font-size: 20px;
    color: var(--healthcare-blue-light);
}

h6 {
    font-size: var(--body-text);
    color: var(--silver);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--healthcare-blue-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-green);
}

label, .label {
    font-family: var(--font-label);
    font-size: var(--caption-text);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--silver);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 51, 102, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 172, 193, 0.2);
    border-bottom: 2px solid var(--healthcare-blue-light);
}

.header-content {
    max-width: var(--width-wide);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--healthcare-blue-light), var(--accent-green));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 10px rgba(0, 230, 118, 0.5); }
    50% { box-shadow: 0 0 25px rgba(0, 230, 118, 0.8); }
}

.logo-text {
    font-family: var(--font-title);
    font-size: 24px;
    color: var(--white);
    font-weight: 700;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 28px;
    cursor: pointer;
    padding: 8px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--white);
    font-size: 16px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 80%;
}

.nav-menu a:hover {
    color: var(--accent-green);
    background: rgba(0, 230, 118, 0.1);
}

/* ============================================
   LAYOUT CONTAINERS
   ============================================ */
.container-jumbo {
    min-height: 100vh;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.container-wide {
    max-width: var(--width-wide);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.container-medium {
    max-width: var(--width-medium);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.container-compact {
    max-width: var(--width-compact);
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* ============================================
   HERO SECTIONS
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, var(--healthcare-blue-dark) 0%, var(--healthcare-blue-light) 100%);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 230, 118, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 172, 193, 0.15) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(30deg, transparent 45%, rgba(0, 230, 118, 0.05) 45%, rgba(0, 230, 118, 0.05) 55%, transparent 55%),
        linear-gradient(150deg, transparent 45%, rgba(0, 172, 193, 0.05) 45%, rgba(0, 172, 193, 0.05) 55%, transparent 55%);
    background-size: 60px 60px;
    animation: patternMove 20s linear infinite;
}

@keyframes patternMove {
    0% { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--width-medium);
    padding: var(--spacing-md);
}

.hero-content h1 {
    font-size: 56px;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    -webkit-text-fill-color: var(--white);
}

.hero-subtitle {
    font-size: 24px;
    color: rgba(250, 250, 250, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-meta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.meta-item {
    font-family: var(--font-label);
    font-size: var(--caption-text);
    color: var(--accent-green);
    padding: 8px 16px;
    background: rgba(0, 230, 118, 0.1);
    border: 1px solid var(--accent-green);
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* ============================================
   BUTTONS & CTA
   ============================================ */
.btn {
    display: inline-block;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green), var(--healthcare-blue-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 230, 118, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 230, 118, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--healthcare-blue-dark);
}

.btn-outline {
    background: transparent;
    color: var(--healthcare-blue-light);
    border: 2px solid var(--healthcare-blue-light);
}

.btn-outline:hover {
    background: var(--healthcare-blue-light);
    color: var(--white);
}

/* ============================================
   CARDS & GRID LAYOUTS
   ============================================ */
.healthcare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: 0 4px 20px rgba(0, 51, 102, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 172, 193, 0.2);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--healthcare-blue-light), var(--accent-green));
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.card:hover::before {
    transform: scaleY(1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 172, 193, 0.25);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--healthcare-blue-light), var(--accent-green));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--white);
}

.card-title {
    font-size: 22px;
    color: var(--healthcare-blue-dark);
    margin: 0;
}

.card-body {
    color: #333;
    margin: var(--spacing-sm) 0;
}

.card-footer {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(176, 190, 197, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline {
    position: relative;
    padding: var(--spacing-lg) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--healthcare-blue-dark), var(--healthcare-blue-light), var(--accent-green));
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-left: 50%;
    padding-right: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-content {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 51, 102, 0.1);
    max-width: 450px;
    position: relative;
    border: 1px solid rgba(0, 172, 193, 0.2);
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--accent-green);
    border: 4px solid var(--white);
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.2);
}

.timeline-date {
    font-family: var(--font-label);
    font-size: var(--caption-text);
    color: var(--healthcare-blue-light);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

/* ============================================
   FORMS
   ============================================ */
.lead-form {
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.05), rgba(0, 172, 193, 0.05));
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid var(--healthcare-blue-light);
    margin: var(--spacing-lg) 0;
}

.form-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-label);
    font-size: var(--caption-text);
    color: var(--healthcare-blue-dark);
    text-transform: uppercase;
    letter-spacing: 1.2px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 16px;
    border: 2px solid var(--silver);
    border-radius: 8px;
    background: var(--white);
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--healthcare-blue-light);
    box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.checkbox-group input[type="checkbox"] {
    margin-top: 4px;
    width: 20px;
    height: 20px;
    accent-color: var(--healthcare-blue-light);
}

.checkbox-group label {
    text-transform: none;
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.5;
}

.form-submit {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 51, 102, 0.9);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 16px;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.4s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 32px;
    color: var(--silver);
    cursor: pointer;
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(0, 51, 102, 0.1);
    color: var(--healthcare-blue-dark);
}

/* ============================================
   ACCORDION
   ============================================ */
.accordion {
    margin: var(--spacing-lg) 0;
}

.accordion-item {
    background: var(--white);
    border: 1px solid rgba(0, 172, 193, 0.2);
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.accordion-header {
    padding: var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.03), rgba(0, 172, 193, 0.03));
    transition: background 0.3s ease;
}

.accordion-header:hover {
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.08), rgba(0, 172, 193, 0.08));
}

.accordion-title {
    font-size: 20px;
    color: var(--healthcare-blue-dark);
    margin: 0;
}

.accordion-icon {
    font-size: 24px;
    color: var(--healthcare-blue-light);
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.accordion-item.active .accordion-body {
    max-height: 1000px;
    padding: var(--spacing-md);
    border-top: 1px solid rgba(0, 172, 193, 0.2);
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.05), rgba(0, 172, 193, 0.05));
    border-radius: 8px;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--white);
    border: 2px solid var(--silver);
    border-radius: 20px;
    font-family: var(--font-label);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--healthcare-blue-light);
    color: var(--white);
    border-color: var(--healthcare-blue-light);
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    display: none;
    position: fixed;
    z-index: 3000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
}

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

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    font-size: 40px;
    color: var(--white);
    cursor: pointer;
    background: none;
    border: none;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: linear-gradient(135deg, var(--healthcare-blue-dark), var(--healthcare-blue-light));
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    max-width: var(--width-wide);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
    color: rgba(250, 250, 250, 0.8);
    font-size: 16px;
}

.footer-section a:hover {
    color: var(--accent-green);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    max-width: var(--width-wide);
    margin: var(--spacing-lg) auto 0;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(250, 250, 250, 0.2);
    text-align: center;
    color: rgba(250, 250, 250, 0.7);
}

.footer-contact-info {
    margin-top: var(--spacing-sm);
}

.footer-contact-info p {
    margin: var(--spacing-xs) 0;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --title-xl: 38px;
        --body-text: 16px;
    }
    
    .container-wide,
    .container-medium {
        padding: var(--spacing-md);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        justify-content: flex-start;
        padding-left: 70px;
        padding-right: 0;
    }
    
    .timeline-marker {
        left: 30px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 51, 102, 0.98);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .healthcare-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.text-gradient {
    background: linear-gradient(135deg, var(--healthcare-blue-dark), var(--healthcare-blue-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title {
    font-size: 42px;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: 20px;
    text-align: center;
    color: var(--silver);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none;
}