/* Chronicles of Canadian Energy - Global Styles */
/* Energy Archive Aesthetic - Deep Blue Gradient Theme */

/* ========================================
   CSS VARIABLES & DESIGN TOKENS
   ======================================== */
:root {
    /* Color Palette - Energy Archive */
    --primary-deep-blue: #003366;
    --primary-bright-blue: #0288D1;
    --accent-green: #00E676;
    --accent-gold: #FFD600;
    --charcoal: #212121;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --medium-gray: #BDBDBD;
    --dark-gray: #424242;
    
    /* Gradient System */
    --gradient-primary: linear-gradient(135deg, #003366 0%, #0288D1 100%);
    --gradient-hero: linear-gradient(180deg, rgba(0,51,102,0.95) 0%, rgba(2,136,209,0.85) 100%);
    --gradient-overlay: linear-gradient(to bottom, transparent, rgba(0,51,102,0.8));
    
    /* Typography Scale */
    --font-title: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans', sans-serif;
    --font-code: 'Source Code Pro', monospace;
    
    --size-title-xl: 46px;
    --size-title-lg: 36px;
    --size-title-md: 28px;
    --size-body: 18px;
    --size-caption: 14px;
    --line-height: 1.65;
    
    /* Layout Blocks */
    --width-wide: 1400px;
    --width-medium: 1000px;
    --width-compact: 720px;
    
    /* Spacing System */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 72px;
    --space-xxl: 96px;
    
    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 51, 102, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 51, 102, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 51, 102, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 8px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--size-body);
    line-height: var(--line-height);
    color: var(--charcoal);
    background-color: var(--light-gray);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--primary-deep-blue);
}

h1 {
    font-size: var(--size-title-xl);
    letter-spacing: -0.5px;
}

h2 {
    font-size: var(--size-title-lg);
}

h3 {
    font-size: var(--size-title-md);
}

p {
    margin-bottom: var(--space-md);
    color: var(--dark-gray);
}

a {
    color: var(--primary-bright-blue);
    text-decoration: none;
    transition: var(--transition);
}

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

code, pre {
    font-family: var(--font-code);
    font-size: var(--size-caption);
    background-color: rgba(0, 51, 102, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ========================================
   LAYOUT CONTAINERS
   ======================================== */
.container-jumbo {
    width: 100%;
    min-height: 100vh;
    padding: var(--space-xl) var(--space-md);
}

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

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

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

/* Energy Grid System */
.energy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-xl) 0;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.site-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    font-size: 32px;
    color: var(--accent-gold);
}

.logo-text h1 {
    font-size: 24px;
    color: var(--white);
    margin: 0;
}

.logo-text p {
    font-size: var(--size-caption);
    color: var(--accent-green);
    margin: 0;
    font-family: var(--font-code);
}

/* Navigation */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.nav-list a {
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 16px;
    text-decoration: none;
}

.nav-list a:hover,
.nav-list a.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--accent-gold);
    text-decoration: none;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 28px;
    cursor: pointer;
    padding: var(--space-xs);
}

/* ========================================
   HERO SECTIONS
   ======================================== */
.hero-section {
    background: var(--gradient-hero);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0, 230, 118, 0.03) 40px, rgba(0, 230, 118, 0.03) 80px),
        repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(255, 214, 0, 0.03) 40px, rgba(255, 214, 0, 0.03) 80px);
    pointer-events: none;
}

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

.hero-title {
    font-size: clamp(36px, 5vw, 56px);
    color: var(--white);
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 24px);
    color: var(--accent-green);
    margin-bottom: var(--space-lg);
    font-family: var(--font-code);
}

.hero-description {
    font-size: var(--size-body);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-xl);
}

/* ========================================
   BUTTONS & CTAs
   ======================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--border-radius);
    font-family: var(--font-title);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--charcoal);
    border-color: var(--accent-green);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-green);
    border-color: var(--accent-green);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-deep-blue);
    text-decoration: none;
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--accent-gold);
    color: var(--charcoal);
    border-color: var(--accent-gold);
}

.btn-gold:hover {
    background: transparent;
    color: var(--accent-gold);
    border-color: var(--accent-gold);
    text-decoration: none;
    transform: translateY(-2px);
}

.cta-group {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* ========================================
   CARDS & CONTENT BLOCKS
   ======================================== */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-icon {
    font-size: 48px;
    color: var(--accent-green);
    margin-bottom: var(--space-md);
}

.card-title {
    font-size: 24px;
    color: var(--primary-deep-blue);
    margin-bottom: var(--space-sm);
}

.card-description {
    flex: 1;
    color: var(--dark-gray);
    margin-bottom: var(--space-md);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--medium-gray);
}

.card-label {
    font-family: var(--font-code);
    font-size: var(--size-caption);
    color: var(--medium-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-label {
    font-family: var(--font-code);
    font-size: var(--size-caption);
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: var(--size-title-lg);
    color: var(--primary-deep-blue);
    margin-bottom: var(--space-md);
}

.section-description {
    max-width: var(--width-compact);
    margin: 0 auto;
    color: var(--dark-gray);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    display: flex;
    margin-bottom: var(--space-xl);
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-content {
    width: calc(50% - 40px);
    background: var(--white);
    padding: var(--space-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    position: relative;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--accent-gold);
    border: 4px solid var(--white);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.timeline-year {
    font-family: var(--font-title);
    font-size: 28px;
    color: var(--accent-green);
    margin-bottom: var(--space-sm);
}

/* ========================================
   FORMS
   ======================================== */
.form-section {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    margin: var(--space-xl) 0;
}

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

.form-label {
    display: block;
    font-family: var(--font-code);
    font-size: var(--size-caption);
    color: var(--primary-deep-blue);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: var(--size-body);
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.1);
}

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

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.form-checkbox input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-checkbox label {
    flex: 1;
    font-size: 14px;
    color: var(--dark-gray);
    cursor: pointer;
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-xl) 0 var(--space-lg);
    margin-top: var(--space-xxl);
}

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

.footer-section h3 {
    color: var(--accent-gold);
    font-size: 20px;
    margin-bottom: var(--space-md);
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
}

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

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

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.footer-contact-icon {
    color: var(--accent-green);
    font-size: 20px;
}

.footer-bottom {
    max-width: var(--width-wide);
    margin: var(--space-lg) auto 0;
    padding: var(--space-lg) var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--size-caption);
    margin: 0;
}

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

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }
.py-lg { padding-top: var(--space-lg); padding-bottom: var(--space-lg); }
.py-xl { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --size-title-xl: 38px;
        --size-title-lg: 30px;
        --size-title-md: 24px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
    }
    
    .timeline-content {
        width: calc(100% - 60px);
        margin-left: 60px;
    }
    
    .timeline-marker {
        left: 20px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .main-nav {
        flex-basis: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-in-out;
    }
    
    .main-nav.active {
        max-height: 500px;
    }
    
    .nav-list {
        flex-direction: column;
        width: 100%;
        margin-top: var(--space-md);
    }
    
    .nav-list a {
        display: block;
        padding: var(--space-sm);
    }
    
    .energy-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .cta-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    :root {
        --size-title-xl: 32px;
        --size-body: 16px;
        --space-lg: 32px;
        --space-xl: 48px;
    }
    
    .container-jumbo,
    .container-wide,
    .container-medium,
    .container-compact {
        padding: var(--space-md) var(--space-sm);
    }
}