/* ============================================
   Micro Analytical Inc — Site Styles
   Forest Green + Off-White Palette
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --primary: #1a5c2a;
    --primary-dark: #134720;
    --primary-light: #2d7a3e;
    --primary-50: #e8f5ec;
    --primary-100: #c8e6d0;
    
    --off-white: #f5f4f0;
    --off-white-dark: #eae8e2;
    --cream: #faf9f6;
    
    --text-dark: #1a1a1a;
    --text-medium: #3a3a3a;
    --text-light: #6b6b6b;
    --text-on-dark: #f5f4f0;
    
    --border: #e0ded8;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--primary-light);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

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

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

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.6);
}

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

.btn-sm {
    padding: 8px 18px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* --- Section Shared --- */
.section-tag {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-50);
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-tag-light {
    color: var(--off-white);
    background: rgba(255,255,255,0.15);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 16px;
}

.section-title-light {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-light);
    max-width: 600px;
    line-height: 1.7;
}

.section-subtitle-light {
    color: rgba(255,255,255,0.8);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

/* ============================================
   Header / Navigation
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.1875rem;
    color: var(--primary);
    text-decoration: none;
}

.logo:hover {
    color: var(--primary-dark);
}

.logo-light {
    color: var(--off-white);
}

.logo-light:hover {
    color: var(--white);
}

.logo-icon {
    color: var(--primary);
    flex-shrink: 0;
}

.logo-light .logo-icon {
    color: var(--off-white);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-links a {
    color: var(--text-medium);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
    background: var(--primary-50);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 44px;
    height: 44px;
    position: relative;
}

.hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-dark);
    position: relative;
    transition: all var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 2px;
    background: var(--text-dark);
    transition: all var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        linear-gradient(135deg, rgba(26, 92, 42, 0.92) 0%, rgba(19, 71, 32, 0.95) 100%),
        url('https://images.pexels.com/photos/5994630/pexels-photo-5994630.jpeg?auto=compress&cs=tinysrgb&fit=crop&w=1920&h=1080') center / cover no-repeat;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(45, 122, 62, 0.3) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(26, 92, 42, 0.2) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--off-white);
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 32px;
    backdrop-filter: blur(8px);
}

.hero-headline {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-subheadline {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    color: rgba(255,255,255,0.85);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--primary-100);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    color: var(--primary);
    margin-bottom: 20px;
}

.service-card h3 {
    font-family: var(--font-sans);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.65;
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: 100px 0;
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.15;
}

.about-content .section-title {
    margin-bottom: 24px;
}

.about-text {
    font-size: 1rem;
    color: var(--text-medium);
    line-height: 1.75;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-medium);
}

.check-icon {
    color: var(--primary);
    flex-shrink: 0;
}

/* ============================================
   Why Us Section
   ============================================ */
.why-us {
    padding: 100px 0;
    background: var(--primary);
    position: relative;
    overflow: hidden;
}

.why-us::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 0% 100%, rgba(255,255,255,0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 100% 0%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.why-card {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    backdrop-filter: blur(8px);
    transition: all var(--transition);
}

.why-card:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-2px);
}

.why-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: rgba(255,255,255,0.15);
    line-height: 1;
    margin-bottom: 16px;
}

.why-card h3 {
    font-family: var(--font-sans);
    font-size: 1.1875rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
}

.why-card p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.65;
}

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner {
    padding: 80px 0;
    background: var(--off-white-dark);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.0625rem;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: 100px 0;
    background: var(--cream);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-intro {
    font-size: 1.0625rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    color: var(--primary);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 4px;
    font-weight: 600;
}

.contact-item p {
    font-size: 1rem;
    color: var(--text-dark);
    line-height: 1.6;
}

.contact-item a {
    color: var(--primary);
}

.contact-item a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-medium);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-dark);
    background: var(--cream);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(26, 92, 42, 0.1);
}

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

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

.form-note {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin-top: 12px;
    text-align: center;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    margin: 0 auto 16px;
}

.form-success h4 {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--text-light);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: #111;
    color: var(--text-on-dark);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.4);
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.7);
    transition: color var(--transition);
}

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

.footer-contact address {
    font-style: normal;
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
}

.footer-contact a {
    color: rgba(255,255,255,0.7);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.4);
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

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

/* ============================================
   Scroll Reveal (progressive enhancement)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        transition: all var(--transition);
        pointer-events: none;
    }
    
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links a {
        display: block;
        padding: 12px 16px;
        width: 100%;
    }
    
    .nav-links .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero {
        padding: 120px 20px 80px;
        min-height: auto;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .hero-stat-divider {
        display: none;
    }
    
    .services {
        padding: 72px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about {
        padding: 72px 0;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-wrapper img {
        height: 320px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .why-us {
        padding: 72px 0;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-banner {
        padding: 64px 0;
    }
    
    .contact {
        padding: 72px 0;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-form-wrapper {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-headline {
        font-size: 1.75rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
}