/* ============================================
   GreenLab Tech LLC — Styles
   ============================================ */

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

:root {
    --green-900: #071f12;
    --green-800: #0a2e1a;
    --green-700: #0f3d24;
    --green-600: #1a5c3a;
    --green-500: #22794d;
    --green-400: #2ea563;
    --green-300: #4cca7e;
    --gold: #d4a843;
    --gold-light: #f0d48a;
    --white: #ffffff;
    --gray-50: #f8faf9;
    --gray-100: #f0f3f1;
    --gray-200: #dce3de;
    --gray-400: #98a89d;
    --gray-600: #5a6b5f;
    --gray-800: #2a352d;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* --- Typography --- */
h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--green-500);
    color: var(--white);
    border-color: var(--green-500);
}

.btn-primary:hover {
    background: var(--green-400);
    border-color: var(--green-400);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(34, 121, 77, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

.btn-full { width: 100%; }

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(7, 31, 18, 0.95);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    color: var(--green-400);
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 36px;
}

.nav-links a {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green-400);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--green-500);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 50px;
    border: none;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
    background: var(--green-400);
    transform: translateY(-1px);
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(160deg, var(--green-900) 0%, var(--green-800) 40%, var(--green-700) 100%);
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(46, 165, 99, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(212, 168, 67, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 60% 80%, rgba(46, 165, 99, 0.05) 0%, transparent 45%);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(46, 165, 99, 0.15);
    color: var(--green-300);
    border: 1px solid rgba(76, 202, 126, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 28px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.text-accent {
    background: linear-gradient(135deg, var(--green-300), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: rgba(255,255,255,0.7);
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.4);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* ============================================
   Section Shared
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(34, 121, 77, 0.08);
    color: var(--green-600);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    color: var(--green-900);
    margin-bottom: 16px;
}

.section-intro {
    color: var(--gray-600);
    font-size: 1.1rem;
    max-width: 580px;
    margin: 0 auto;
}

/* ============================================
   About / Mission & Vision
   ============================================ */
.about {
    padding: 100px 0;
    background: var(--gray-50);
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 56px;
}

.mv-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

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

.mv-icon {
    width: 48px;
    height: 48px;
    color: var(--green-500);
    margin-bottom: 20px;
}

.mv-card h3 {
    color: var(--green-800);
    margin-bottom: 14px;
    font-size: 1.35rem;
}

.mv-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* Values */
.values-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.value-item {
    text-align: center;
    padding: 24px 16px;
    border-radius: var(--radius-sm);
    background: var(--white);
    border: 1px solid var(--gray-200);
}

.value-item strong {
    display: block;
    color: var(--green-700);
    font-size: 1rem;
    margin-bottom: 6px;
}

.value-item span {
    color: var(--gray-600);
    font-size: 0.85rem;
}

/* ============================================
   CEO Section
   ============================================ */
.ceo {
    padding: 100px 0;
    background: var(--white);
}

.ceo-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    align-items: start;
    max-width: 900px;
    margin: 0 auto;
}

.ceo-photo-placeholder {
    width: 280px;
    height: 320px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--green-700), var(--green-900));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(255,255,255,0.3);
    letter-spacing: 2px;
}

.ceo-info h3 {
    font-size: 1.6rem;
    color: var(--green-900);
    margin-bottom: 4px;
}

.ceo-title {
    display: block;
    color: var(--green-600);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.ceo-info blockquote {
    position: relative;
    padding: 24px 28px;
    background: var(--gray-50);
    border-left: 4px solid var(--green-500);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--gray-800);
    font-style: italic;
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.ceo-bio {
    color: var(--gray-600);
    line-height: 1.8;
}

/* ============================================
   Services
   ============================================ */
.services {
    padding: 100px 0;
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(34, 121, 77, 0.2);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--green-500);
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--green-800);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.7;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font);
    font-size: 0.95rem;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    color: var(--gray-800);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green-500);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(34, 121, 77, 0.1);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding-top: 8px;
}

.contact-info-item h4 {
    color: var(--green-800);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.contact-info-item p {
    color: var(--gray-600);
    font-size: 0.95rem;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    color: var(--green-600);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--green-400);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 32px 0;
    background: var(--green-900);
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ============================================
   Scroll Reveal Animation
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }

    .values-strip {
        grid-template-columns: 1fr 1fr;
    }

    .ceo-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .ceo-photo-placeholder {
        width: 200px;
        height: 240px;
        margin: 0 auto;
    }

    .ceo-info blockquote {
        text-align: left;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--green-900);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: var(--transition);
        box-shadow: -4px 0 20px rgba(0,0,0,0.3);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .nav-cta {
        text-align: center;
        width: 100%;
    }

    .hero-content {
        padding: 100px 0 60px;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .values-strip {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}