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

:root {
    /* Colors */
    --primary-green: #2C5F4F;
    --sage-green: #7A9E7E;
    --ocean-blue: #4A7C99;
    --warm-earth: #A67C52;
    --charcoal: #2D3436;
    --light-gray: #F5F6F7;
    --white: #FFFFFF;
    --bright-green: #6FCF97;
    --warm-orange: #F39C6B;

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.nav-brand h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--primary-green);
    font-weight: 700;
}

.nav-brand img {
    height: 90px;
    width: auto;
    display: block;
}

@media (max-width: 768px) {
    .nav-brand img {
        height: 68px;
    }
}

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

.nav-link {
    text-decoration: none;
    color: var(--charcoal);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-green);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--bright-green);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.btn-contact {
    background-color: var(--bright-green);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
}

.nav-link.btn-contact:hover {
    background-color: var(--primary-green);
    color: var(--white);
}

.nav-link.btn-contact::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-green);
    margin: 3px 0;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--light-gray) 0%, #e8f5f0 100%);
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(111, 207, 151, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(44, 95, 79, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--sage-green);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--charcoal);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 30px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(111, 207, 151, 0.3);
}

.btn-secondary {
    background-color: var(--ocean-blue);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #3a6480;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 124, 153, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-outline:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* ========================================
   Three Pillars Section
   ======================================== */
.pillars {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.1rem;
    color: var(--sage-green);
    max-width: 600px;
    margin: 0 auto;
}

.section-link {
    color: var(--bright-green);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.section-link:hover {
    color: var(--primary-green);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.pillar-card {
    background-color: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--bright-green), var(--ocean-blue));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.pillar-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--bright-green);
}

.pillar-card:hover::before {
    transform: scaleX(1);
}

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

.pillar-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.pillar-description {
    color: var(--charcoal);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.pillar-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.pillar-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--charcoal);
}

.pillar-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--bright-green);
    font-weight: bold;
}

.pillar-link {
    color: var(--bright-green);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
}

.pillar-link:hover {
    color: var(--primary-green);
    transform: translateX(5px);
}

/* ========================================
   Credentials Section
   ======================================== */
.credentials {
    padding: var(--spacing-lg) 0;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--sage-green) 100%);
    color: var(--white);
}

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.credential-item {
    text-align: center;
    padding: var(--spacing-md);
}

.credential-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.credential-item h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.credential-item p {
    opacity: 0.9;
    font-size: 0.95rem;
}

/* ========================================
   Recent Insights Section
   ======================================== */
.recent-insights {
    padding: var(--spacing-xl) 0;
    background-color: var(--light-gray);
}

.recent-insights .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.insight-card {
    background-color: var(--white);
    border-radius: 15px;
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.insight-card.featured {
    border: 2px solid var(--bright-green);
}

.insight-tag {
    display: inline-block;
    background-color: var(--bright-green);
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.insight-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.insight-meta {
    color: var(--sage-green);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.insight-excerpt {
    color: var(--charcoal);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.insight-link {
    color: var(--bright-green);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.insight-link:hover {
    color: var(--primary-green);
}

/* ========================================
   Social Proof Section
   ======================================== */
.social-proof {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
    text-align: center;
}

.logos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.logo-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    background-color: var(--light-gray);
    border-radius: 10px;
    font-weight: 600;
    color: var(--sage-green);
    transition: var(--transition);
}

.logo-placeholder:hover {
    background-color: var(--primary-green);
    color: var(--white);
}

/* ========================================
   Newsletter CTA
   ======================================== */
.newsletter-cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--ocean-blue) 0%, var(--primary-green) 100%);
    color: var(--white);
    text-align: center;
}

.newsletter-content h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto;
    margin-bottom: var(--spacing-sm);
}

.newsletter-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-family: var(--font-body);
}

.newsletter-input:focus {
    outline: 2px solid var(--bright-green);
}

.newsletter-privacy {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--charcoal);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-col h3,
.footer-col h4 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
    color: var(--bright-green);
}

.footer-col p {
    opacity: 0.8;
    line-height: 1.8;
}

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

.footer-links li,
.footer-social li {
    margin-bottom: 0.5rem;
}

.footer-links a,
.footer-social a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-social a:hover {
    opacity: 1;
    color: var(--bright-green);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: var(--spacing-md) 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-image-placeholder svg {
        width: 300px;
        height: 300px;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .recent-insights .section-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .pillar-card {
        padding: var(--spacing-sm);
    }
}