/* =====================================================
   CSS Variables - TrailMapper Color Palette
   ===================================================== */
:root {
    /* Color variables */
    --color-primary: #2d5a27;
    --color-secondary: #333333;
    --color-accent: #ff6b35;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-success: #4caf50;
    
    /* Font variables */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-secondary: 'Georgia', 'Garamond', serif;
    
    /* Fluid font sizing with clamp() */
    --font-size-h1: clamp(2rem, 5vw, 3.5rem);
    --font-size-h2: clamp(1.75rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.25rem, 3vw, 1.4rem);
    --font-size-h4: clamp(1.1rem, 2.5vw, 1.25rem);
    --font-size-h5: clamp(1rem, 2vw, 1.1rem);
    --font-size-body: clamp(0.95rem, 2vw, 1.1rem);
    --font-size-small: clamp(0.85rem, 1.5vw, 0.95rem);
    
    /* Spacing variables */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transition variables */
    --transition-fast: 0.2s ease-in-out;
    --transition-smooth: 0.4s ease-in-out;
    --transition-slow: 0.8s ease-in-out;
    
    /* Border radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
}

/* =====================================================
   Global Styles
   ===================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

/* 12-Column CSS Grid Container */
.container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* =====================================================
   Skip to Content Link
   ===================================================== */
.skip-to-content {
    position: absolute;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 999;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
}

.skip-to-content:focus {
    clip: auto;
    width: auto;
    height: auto;
    overflow: visible;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
}

/* =====================================================
   Navigation Bar
   ===================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo-section {
    flex: 0 1 auto;
}

.logo {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin: 0;
    text-decoration: none;
}

/* Hamburger Menu Button */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    gap: 6px;
}

.hamburger-line {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-smooth);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    margin: 0;
    padding: 0;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--font-size-small);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-smooth);
}

.nav-menu a:hover::after,
.nav-menu a:focus::after {
    width: 100%;
}

.nav-menu a:hover {
    color: var(--color-primary);
}

/* Mobile Navigation Menu */
@media (max-width: 767px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid #e0e0e0;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-smooth);
        padding: 0;
        margin: 0;
    }

    .nav-menu.active {
        max-height: 300px;
        padding: var(--spacing-lg) 0;
    }

    .nav-menu li {
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        display: block;
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-body);
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-menu a:hover {
        background-color: var(--color-bg-alt);
    }
}

/* =====================================================
   Button Styles
   ===================================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-small);
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #1f4018;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(45, 90, 39, 0.3);
}

.btn-secondary {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: #ff5722;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
}

/* =====================================================
   Hero Section
   ===================================================== */
.hero-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, #2d5a27 0%, #1f4018 100%);
    color: var(--color-bg);
}

.hero-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-content {
    grid-column: span 6;
}

.hero-content h2 {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--color-bg);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--font-size-body);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    max-width: 500px;
}

.hero-image {
    grid-column: span 6;
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 100%;
    max-width: 450px;
    border-radius: var(--border-radius-md);
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* =====================================================
   Features Section
   ===================================================== */
.features-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg);
}

.features-section .container {
    grid-template-columns: repeat(12, 1fr);
}

.features-section h2 {
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    grid-column: span 12;
    letter-spacing: -0.01em;
}

.section-intro {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
    grid-column: span 12;
    margin-bottom: var(--spacing-xxl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xl);
    grid-column: span 12;
}

.feature-card {
    grid-column: span 4;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-smooth);
    border-top: 4px solid var(--color-primary);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(45, 90, 39, 0.1);
    border-radius: var(--border-radius-sm);
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature-card h3 {
    font-size: var(--font-size-h3);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: var(--font-size-body);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    font-size: var(--font-size-small);
    color: var(--color-text);
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.2em;
}

/* =====================================================
   Testimonials Section
   ===================================================== */
.testimonials-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-bg-alt);
}

.testimonials-section .container {
    grid-template-columns: repeat(12, 1fr);
}

.testimonials-section h2 {
    font-size: var(--font-size-h2);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    grid-column: span 12;
    letter-spacing: -0.01em;
}

.testimonials-section .section-intro {
    grid-column: span 12;
    margin-bottom: var(--spacing-xxl);
}

.testimonial-card {
    grid-column: span 12;
    padding: var(--spacing-xxl);
    background-color: var(--color-bg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-left: 6px solid var(--color-accent);
}

.testimonial-content blockquote {
    margin: 0 0 var(--spacing-xl) 0;
}

.testimonial-content blockquote p {
    font-size: var(--font-size-body);
    color: var(--color-text);
    line-height: 1.8;
    font-style: italic;
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin: 0;
}

.author-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.author-info h4 {
    font-size: var(--font-size-h4);
    font-weight: 700;
    color: var(--color-primary);
    margin: 0 0 var(--spacing-xs) 0;
}

.author-info p {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    margin: 0 0 var(--spacing-sm) 0;
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stars {
    font-size: 1.2rem;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.rating-text {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    font-weight: 600;
}

/* =====================================================
   Call-to-Action Section
   ===================================================== */
.cta-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #1f4018 100%);
    color: var(--color-bg);
}

.cta-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xxl);
    align-items: center;
}

.cta-content {
    grid-column: span 6;
}

.cta-content h2 {
    font-size: var(--font-size-h2);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--color-bg);
    letter-spacing: -0.01em;
}

.cta-content > p {
    font-size: var(--font-size-body);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.cta-form {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    flex: 1;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
}

.form-group input::placeholder {
    color: var(--color-text-light);
}

.cta-disclaimer {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.cta-image {
    grid-column: span 6;
    display: flex;
    justify-content: center;
}

.cta-image img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--border-radius-md);
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* =====================================================
   Footer
   ===================================================== */
.site-footer {
    background-color: var(--color-secondary);
    color: var(--color-bg);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-xl);
}

.footer-content {
    grid-column: span 12;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer-section h5 {
    font-size: var(--font-size-h5);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-bg);
}

.footer-section p {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin: 0;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: var(--font-size-small);
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-bottom {
    grid-column: span 12;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-bottom p {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
}

.portfolio-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.portfolio-link:hover {
    text-decoration: underline;
}

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-column: span 12;
    }

    .hero-image {
        grid-column: span 12;
    }

    .feature-card {
        grid-column: span 6;
    }

    .cta-content {
        grid-column: span 12;
    }

    .cta-image {
        grid-column: span 12;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }

    .hero-content h2 {
        font-size: clamp(1.5rem, 4vw, 2.2rem);
    }

    .hero-subtitle {
        font-size: var(--font-size-small);
    }

    .feature-card {
        grid-column: span 12;
    }

    .features-section h2 {
        font-size: clamp(1.25rem, 3vw, 1.8rem);
    }

    .cta-form {
        flex-direction: column;
    }

    .cta-form .btn {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-section,
    .features-section,
    .testimonials-section,
    .cta-section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .navbar-container {
        padding: var(--spacing-md) var(--spacing-md);
    }

    .logo {
        font-size: 1.2rem;
    }

    .hero-content h2 {
        font-size: clamp(1.25rem, 3vw, 1.75rem);
    }

    .feature-card {
        padding: var(--spacing-lg);
    }

    .cta-content h2 {
        font-size: clamp(1.25rem, 3vw, 1.75rem);
    }

    .testimonial-author {
        flex-direction: column;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .btn {
        width: 100%;
    }
}