/* ========================================
   Bihanga Agro Ventures - Main Stylesheet
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    --primary-green: #2C5F2D;
    --primary-green-dark: #1e4320;
    --secondary-gold: #D4A574;
    --accent-brown: #6B4423;
    --light-bg: #FAF9F6;
    --white: #FFFFFF;
    --text-dark: #2C2C2C;
    --text-gray: #666666;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Navigation ===== */
nav {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-gold));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
}

.logo i {
    font-size: 30px;
    color: var(--white);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text h1 {
    font-size: 1.5rem;
    color: var(--primary-green);
    font-weight: 700;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--text-gray);
    font-style: italic;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-gold);
    transition: width 0.3s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-green);
    cursor: pointer;
}

/* ===== Hero Section ===== */
.hero {
    background: linear-gradient(rgba(44, 95, 45, 0.8), rgba(44, 95, 45, 0.8)),
                url('https://images.unsplash.com/photo-1574943320219-553eb213f72d?q=80&w=2000') center/cover;
    color: var(--white);
    padding: 120px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-gold);
    font-weight: 300;
}

.hero p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background-color: #c49563;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* ===== Section Styles ===== */
section {
    padding: 80px 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-green), var(--secondary-gold));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 1.5rem auto 0;
}

/* ===== Cards ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-gold));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.card h3 {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

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

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-item {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    border-top: 4px solid var(--secondary-gold);
}

.feature-item i {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-gray);
}

/* ===== Statistics Section ===== */
.stats {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-dark));
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-gold);
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-top: 2rem;
}

.about-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    margin-top: 1.5rem;
}

.about-text ul li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-text ul li i {
    color: var(--secondary-gold);
}

/* ===== Contact Section ===== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: start;
    gap: 1rem;
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-green);
    margin-top: 5px;
}

.info-card-content h3 {
    font-size: 1.2rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.info-card-content p {
    color: var(--text-gray);
}

/* ===== Footer ===== */
footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto 2rem;
}

.footer-section h3 {
    color: var(--secondary-gold);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section p,
.footer-section ul {
    color: #CCCCCC;
    line-height: 1.8;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #CCCCCC;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--secondary-gold);
}

.footer-section ul li i {
    margin-right: 8px;
    color: var(--secondary-gold);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s;
}

.social-links a:hover {
    background-color: var(--secondary-gold);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #CCCCCC;
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 999;
    transition: all 0.3s;
    cursor: pointer;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.whatsapp-float i {
    font-size: 2rem;
    color: var(--white);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 1rem 2rem;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .tagline {
        font-size: 1.1rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }

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

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .logo-text h1 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 20px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    section {
        padding: 50px 20px;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float i {
        font-size: 1.5rem;
    }
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== Detail Pages ===== */
.page-header {
    background: linear-gradient(rgba(44, 95, 45, 0.9), rgba(44, 95, 45, 0.9)),
                url('https://images.unsplash.com/photo-1625246333195-78d9c38ad449?q=80&w=2000') center/cover;
    color: var(--white);
    padding: 100px 20px 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
}

.content-section {
    padding: 60px 20px;
}

.detail-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--secondary-gold);
}

.detail-card h3 {
    font-size: 1.8rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 15px;
}

.detail-card h3 i {
    color: var(--secondary-gold);
}

.detail-card p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.detail-card ul {
    list-style: none;
    margin-top: 1rem;
}

.detail-card ul li {
    padding: 0.5rem 0;
    color: var(--text-gray);
    display: flex;
    align-items: start;
    gap: 10px;
}

.detail-card ul li i {
    color: var(--primary-green);
    margin-top: 5px;
}