/* ==========================================
   Drillmark Energy - Terrain Impact Analysis
   ========================================== */

/* Root Variables */
:root {
    /* Color Palette */
    --color-primary: #1C140E;           /* Deep earth brown */
    --color-background: #E9E6E2;        /* Dust light grey */
    --color-accent: #B25A28;            /* Burnt copper */
    --color-highlight: #6A7768;         /* Soil olive */
    --color-white: #FFFFFF;
    --color-light: #F5F4F2;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;
    
    /* Transitions */
    --transition-speed: 0.3s;
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--color-primary);
    background-color: var(--color-background);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-speed);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: linear-gradient(to bottom, rgba(28, 20, 14, 0.98), rgba(28, 20, 14, 0.95));
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 2px solid var(--color-accent);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--color-white);
}

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

.nav-link {
    color: var(--color-background);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: all var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transform: translateX(-50%);
    transition: width var(--transition-speed);
}

.nav-link:hover {
    color: var(--color-white);
}

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

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--header-height);
    background: linear-gradient(135deg, var(--color-primary) 0%, #2d231a 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(178, 90, 40, 0.1) 49px, rgba(178, 90, 40, 0.1) 50px),
        repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(178, 90, 40, 0.1) 49px, rgba(178, 90, 40, 0.1) 50px);
    opacity: 0.3;
    pointer-events: none;
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    color: var(--color-white);
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    color: var(--color-background);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-description {
    color: var(--color-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

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

.btn {
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

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

.btn-primary:hover {
    background: #9a4d22;
    border-color: #9a4d22;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(178, 90, 40, 0.4);
}

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

.btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* Section Styles */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
}

.section-alt {
    background: var(--color-white);
}

.section-dark {
    background: var(--color-primary);
    color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
    color: var(--color-white);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--color-accent);
}

.section-description {
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
    font-size: 1.1rem;
    color: var(--color-highlight);
}

.section-dark .section-description {
    color: var(--color-background);
}

/* Contour Divider */
.contour-divider {
    height: 2px;
    background: repeating-linear-gradient(
        90deg,
        var(--color-accent) 0px,
        var(--color-accent) 10px,
        transparent 10px,
        transparent 20px
    );
    margin: var(--spacing-lg) 0;
    opacity: 0.5;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Cards */
.card {
    background: var(--color-white);
    border-radius: 8px;
    padding: var(--spacing-md);
    box-shadow: 0 2px 8px rgba(28, 20, 14, 0.1);
    transition: all var(--transition-speed);
    border: 1px solid rgba(178, 90, 40, 0.1);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(28, 20, 14, 0.15);
    border-color: var(--color-accent);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent), #9a4d22);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
    font-size: 1.5rem;
}

.card-title {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--color-highlight);
    line-height: 1.7;
}

/* Cards in Dark Sections - Ensure proper contrast */
.section-dark .card {
    background: var(--color-white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.section-dark .card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.section-dark .card-title {
    color: var(--color-primary);
}

.section-dark .card-text {
    color: var(--color-highlight);
}

/* Feature Boxes */
.feature-box {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.25rem;
}

.feature-content h3 {
    margin-bottom: var(--spacing-xs);
}

/* Image Containers */
.image-container {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(28, 20, 14, 0.2);
}

.image-container img {
    width: 100%;
    transition: transform var(--transition-speed);
}

.image-container:hover img {
    transform: scale(1.05);
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(28, 20, 14, 0.9), transparent);
    color: var(--color-white);
    padding: var(--spacing-md);
    font-size: 0.9rem;
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.stat-box {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(178, 90, 40, 0.1);
    border-radius: 8px;
    border: 2px solid var(--color-accent);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--color-highlight);
    font-weight: 500;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(178, 90, 40, 0.2);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
    background: var(--color-white);
    color: var(--color-primary);
    transition: border-color var(--transition-speed);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

/* Contact Info */
.contact-info {
    background: var(--color-light);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
}

.contact-details h4 {
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.contact-details p {
    margin: 0;
    color: var(--color-highlight);
}

/* Map Placeholder */
.map-container {
    width: 100%;
    height: 400px;
    background: var(--color-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--color-accent);
    margin-top: var(--spacing-md);
}

/* Article/Insight Cards */
.article-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(28, 20, 14, 0.1);
    transition: all var(--transition-speed);
    border: 1px solid rgba(178, 90, 40, 0.1);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(28, 20, 14, 0.15);
}

.article-image {
    width: 100%;
    height: 200px;
    background: var(--color-highlight);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 3rem;
}

.article-content {
    padding: var(--spacing-md);
}

.article-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--color-highlight);
}

.article-title {
    margin-bottom: var(--spacing-sm);
}

.article-excerpt {
    color: var(--color-highlight);
    margin-bottom: var(--spacing-sm);
}

.read-more {
    color: var(--color-accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more:hover {
    text-decoration: underline;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.team-member {
    text-align: center;
    padding: var(--spacing-md);
}

.team-photo {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-sm);
    border-radius: 50%;
    background: var(--color-highlight);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 3rem;
    border: 4px solid var(--color-accent);
}

.team-name {
    margin-bottom: 0.25rem;
}

.team-role {
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.team-bio {
    color: var(--color-highlight);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: var(--color-background);
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

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

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

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

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

.footer-links a {
    color: var(--color-background);
    transition: color var(--transition-speed);
}

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

.footer-bottom {
    border-top: 1px solid rgba(178, 90, 40, 0.3);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-background);
}

.footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.footer-bottom-links a:hover {
    color: var(--color-accent);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-accent {
    color: var(--color-accent);
}

.text-highlight {
    color: var(--color-highlight);
}

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

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

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

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

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2d231a 100%);
    color: var(--color-white);
    padding: 1.5rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.4s ease-in-out;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.cookie-banner-content {
    flex: 1;
    min-width: 300px;
}

.cookie-banner-content h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
}

.cookie-banner-content p {
    color: var(--color-background);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0;
}

.cookie-banner-content a {
    color: var(--color-accent);
    text-decoration: underline;
}

.cookie-banner-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.cookie-banner-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 2px solid transparent;
    white-space: nowrap;
}

.cookie-banner-btn-accept {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.cookie-banner-btn-accept:hover {
    background: #9d4d22;
    border-color: #9d4d22;
    transform: translateY(-2px);
}

.cookie-banner-btn-decline {
    background: transparent;
    color: var(--color-background);
    border-color: var(--color-background);
}

.cookie-banner-btn-decline:hover {
    background: var(--color-background);
    color: var(--color-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .cookie-banner-container {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-banner-content {
        min-width: 100%;
    }
    
    .cookie-banner-buttons {
        justify-content: center;
        width: 100%;
    }
    
    .cookie-banner-btn {
        flex: 1;
        min-width: 120px;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--color-primary);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        gap: 0;
        transition: left var(--transition-speed);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: 1px solid rgba(178, 90, 40, 0.2);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .hero {
        min-height: 100vh;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .feature-box {
        flex-direction: column;
        text-align: center;
    }
    
    .feature-icon {
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-bottom-links {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .header-container {
        padding: 0 var(--spacing-sm);
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .cta-buttons,
    .mobile-menu-toggle {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}