/* ============================================
   SunTrack Network - Main Stylesheet
   Solar Trajectory Design System
   ============================================ */

/* CSS Variables - Solar Trajectory Color Palette */
:root {
    /* Primary Colors */
    --color-midnight: #1A1F35;
    --color-golden-sun: #FFB800;
    --color-sunset-orange: #FF6B35;
    --color-daylight-cream: #FFF8E7;
    --color-sky-teal: #4ECDC4;
    
    /* Gradient Variations */
    --gradient-dawn: linear-gradient(135deg, #FF6B35 0%, #FFB800 100%);
    --gradient-day: linear-gradient(135deg, #4ECDC4 0%, #FFB800 100%);
    --gradient-dusk: linear-gradient(135deg, #1A1F35 0%, #FF6B35 50%, #FFB800 100%);
    --gradient-arc: linear-gradient(90deg, #FF6B35 0%, #FFB800 50%, #4ECDC4 100%);
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Nunito', sans-serif;
    --font-data: 'Fira Code', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(26, 31, 53, 0.1);
    --shadow-md: 0 4px 16px rgba(26, 31, 53, 0.15);
    --shadow-lg: 0 8px 32px rgba(26, 31, 53, 0.2);
    --shadow-glow: 0 0 30px rgba(255, 184, 0, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Width */
    --container-max: 1200px;
    --container-wide: 1400px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

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

body {
    font-family: var(--font-body);
    color: var(--color-midnight);
    background-color: var(--color-daylight-cream);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Accessibility - Visually Hidden */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-midnight);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--space-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

a {
    color: var(--color-golden-sun);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover, a:focus {
    color: var(--color-sunset-orange);
    outline: none;
}

/* ============================================
   Container & Layout
   ============================================ */

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

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

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.125rem;
    text-align: center;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
    line-height: 1;
}

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

.btn-primary:hover, .btn-primary:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    color: white;
}

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

.btn-secondary:hover, .btn-secondary:focus {
    background: var(--color-midnight);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   Header & Navigation
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 248, 231, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-medium);
}

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

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-midnight);
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
    color: var(--color-golden-sun);
    animation: rotate-sun 20s linear infinite;
}

@keyframes rotate-sun {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger {
    width: 30px;
    height: 3px;
    background: var(--color-midnight);
    border-radius: 3px;
    transition: all var(--transition-medium);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    align-items: center;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-midnight);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover, .nav-link:focus {
    color: var(--color-golden-sun);
    background: rgba(255, 184, 0, 0.1);
}

.nav-link.active {
    color: var(--color-golden-sun);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--gradient-dawn);
    border-radius: 3px;
}

.nav-link-cta {
    background: var(--gradient-dawn);
    color: white;
}

.nav-link-cta:hover, .nav-link-cta:focus {
    background: var(--gradient-day);
    color: white;
    transform: scale(1.05);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dusk);
    overflow: hidden;
    padding-top: 80px;
}

.sun-path-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.sun-arc {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    border: 3px solid rgba(255, 184, 0, 0.2);
    border-radius: 50%;
    border-bottom: none;
    animation: arc-pulse 3s ease-in-out infinite;
}

@keyframes arc-pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.sun-position {
    position: absolute;
    bottom: 10%;
    left: 20%;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--color-golden-sun), var(--color-sunset-orange));
    border-radius: var(--radius-full);
    box-shadow: 0 0 60px rgba(255, 184, 0, 0.6);
    animation: sun-rise 10s ease-in-out infinite;
}

@keyframes sun-rise {
    0% { bottom: 10%; left: 20%; }
    50% { bottom: 60%; left: 50%; }
    100% { bottom: 10%; left: 80%; }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
}

.hero-title {
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: var(--space-md);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-daylight-cream);
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: white;
    animation: bounce 2s ease-in-out infinite;
}

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

/* ============================================
   Section Styles
   ============================================ */

section {
    padding: var(--space-2xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: var(--space-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-arc);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: rgba(26, 31, 53, 0.7);
    max-width: 700px;
    margin: 0 auto var(--space-lg);
}

/* ============================================
   Solar Map Section
   ============================================ */

.solar-map-section {
    background: white;
}

.map-container {
    width: 100%;
    height: 600px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--space-md);
}

#canada-map {
    width: 100%;
    height: 100%;
}

.map-legend {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-data);
    font-size: 1rem;
}

/* ============================================
   Performance Cards Section
   ============================================ */

.performance-cards-section {
    background: var(--gradient-day);
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.performance-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.performance-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-arc);
}

.performance-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    font-size: 3rem;
    color: var(--color-golden-sun);
    margin-bottom: var(--space-sm);
}

.card-title {
    font-size: 1.125rem;
    color: rgba(26, 31, 53, 0.7);
    margin-bottom: var(--space-sm);
}

.card-value {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: var(--space-sm);
}

.value-number {
    font-family: var(--font-data);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-midnight);
}

.value-unit {
    font-family: var(--font-data);
    font-size: 1.5rem;
    color: rgba(26, 31, 53, 0.6);
}

.card-description {
    font-size: 0.875rem;
    color: rgba(26, 31, 53, 0.6);
    margin-bottom: var(--space-sm);
}

.card-trend {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    margin-top: auto;
}

.card-trend.positive {
    background: rgba(78, 205, 196, 0.1);
    color: #2d9b94;
}

.card-trend.neutral {
    background: rgba(255, 184, 0, 0.1);
    color: #cc9300;
}

/* ============================================
   Sun Path Visualizer Section
   ============================================ */

.sun-path-section {
    background: white;
}

.sun-path-visualizer {
    background: var(--color-midnight);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
}

#sunPathCanvas {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.sun-path-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.time-display {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-golden-sun);
    font-family: var(--font-data);
    font-size: 1.5rem;
    font-weight: 600;
}

.sun-position-data {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.data-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.data-label {
    font-size: 0.875rem;
    color: rgba(255, 248, 231, 0.7);
}

.data-value {
    font-family: var(--font-data);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-golden-sun);
}

/* ============================================
   Installations Gallery
   ============================================ */

.installations-section {
    background: var(--color-daylight-cream);
}

.installations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.installation-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.installation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.installation-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.installation-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.installation-card:hover .installation-image img {
    transform: scale(1.1);
}

.installation-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: var(--gradient-dawn);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.installation-content {
    padding: var(--space-md);
}

.installation-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.installation-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(26, 31, 53, 0.6);
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.installation-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    padding-top: var(--space-md);
    border-top: 2px solid rgba(26, 31, 53, 0.1);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(26, 31, 53, 0.6);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-family: var(--font-data);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-golden-sun);
}

/* ============================================
   How It Works Section
   ============================================ */

.how-it-works-section {
    background: white;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.step-card {
    position: relative;
    padding: var(--space-lg);
    background: var(--color-daylight-cream);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-medium);
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: rgba(255, 184, 0, 0.2);
}

.step-icon {
    font-size: 4rem;
    color: var(--color-golden-sun);
    margin-bottom: var(--space-md);
}

.step-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.step-description {
    font-size: 1rem;
    color: rgba(26, 31, 53, 0.7);
    line-height: 1.6;
}

/* ============================================
   Resources Section
   ============================================ */

.resources-section {
    background: var(--gradient-day);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.resource-card {
    background: white;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.resource-icon {
    font-size: 3rem;
    color: var(--color-golden-sun);
    margin-bottom: var(--space-md);
}

.resource-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.resource-description {
    font-size: 1rem;
    color: rgba(26, 31, 53, 0.7);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-golden-sun);
    transition: all var(--transition-fast);
}

.resource-link:hover {
    gap: 1rem;
}

/* ============================================
   Reports Section
   ============================================ */

.reports-section {
    background: white;
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.report-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.report-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.report-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.report-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.report-card:hover .report-image img {
    transform: scale(1.1);
}

.report-content {
    padding: var(--space-md);
}

.report-date {
    display: block;
    font-size: 0.875rem;
    color: rgba(26, 31, 53, 0.6);
    margin-bottom: 0.5rem;
    font-family: var(--font-data);
}

.report-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.report-excerpt {
    font-size: 1rem;
    color: rgba(26, 31, 53, 0.7);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.report-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-golden-sun);
    transition: all var(--transition-fast);
}

.report-link:hover {
    gap: 1rem;
}

/* ============================================
   Newsletter Section
   ============================================ */

.newsletter-section {
    background: var(--gradient-dusk);
    color: white;
}

.newsletter-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-title {
    color: white;
    margin-bottom: var(--space-sm);
}

.newsletter-description {
    font-size: 1.25rem;
    color: var(--color-daylight-cream);
    margin-bottom: var(--space-lg);
}

.newsletter-form {
    width: 100%;
}

.form-group {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
}

.newsletter-input {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: none;
    border-radius: var(--radius-md);
    background: white;
    color: var(--color-midnight);
}

.newsletter-input:focus {
    outline: 3px solid var(--color-golden-sun);
}

.newsletter-btn {
    white-space: nowrap;
}

.newsletter-privacy {
    color: var(--color-daylight-cream);
    font-size: 0.875rem;
}

.newsletter-privacy a {
    color: var(--color-golden-sun);
    text-decoration: underline;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--color-midnight);
    color: var(--color-daylight-cream);
    padding: var(--space-2xl) 0 var(--space-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-column h3 {
    color: white;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-golden-sun);
    margin-bottom: var(--space-md);
}

.footer-logo i {
    font-size: 2rem;
}

.footer-description {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
    color: rgba(255, 248, 231, 0.8);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 184, 0, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-golden-sun);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-golden-sun);
    color: var(--color-midnight);
    transform: translateY(-3px);
}

.footer-heading {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
    color: var(--color-golden-sun);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 248, 231, 0.8);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-golden-sun);
}

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

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: var(--space-sm);
    color: rgba(255, 248, 231, 0.8);
}

.footer-contact i {
    color: var(--color-golden-sun);
    margin-top: 0.25rem;
}

.footer-contact a {
    color: rgba(255, 248, 231, 0.8);
}

.footer-contact a:hover {
    color: var(--color-golden-sun);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 248, 231, 0.2);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 248, 231, 0.6);
}

.footer-legal {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
    font-size: 0.875rem;
}

.footer-legal a {
    color: rgba(255, 248, 231, 0.8);
}

.footer-legal a:hover {
    color: var(--color-golden-sun);
}

.separator {
    color: rgba(255, 248, 231, 0.4);
}

/* ============================================
   Responsive Design - Mobile
   ============================================ */

@media (max-width: 768px) {
    :root {
        --space-2xl: 3rem;
        --space-xl: 2rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        background: var(--color-daylight-cream);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px var(--space-md) var(--space-md);
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-medium);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle.active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .nav-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .performance-grid,
    .installations-grid,
    .steps-container,
    .resources-grid,
    .reports-grid {
        grid-template-columns: 1fr;
    }
    
    .sun-path-controls {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .newsletter-input {
        width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .header,
    .nav-toggle,
    .scroll-indicator,
    .newsletter-section,
    .footer-social {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        text-decoration: underline;
    }
}