/* ===========================
   BIONATURA TECHNOLOGIES
   Main Stylesheet
   =========================== */

/* === RESET & VARIABLES === */
:root {
    --primary-green: #2D5F3F;
    --secondary-green: #7FB069;
    --accent-gold: #E8C468;
    --dark-bg: #1A1A1A;
    --light-bg: #F8F9FA;
    --gradient-bg: linear-gradient(180deg, #F8F9FA 0%, #E8F4F0 100%);
    --text-dark: #2C3E50;
    --text-light: #FFFFFF;
    --text-gray: #888888;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.3rem; }

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.8;
}

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

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

/* Navbar Logo Icon */
.logo-icon-img {
    width: 100px;
    height: 40px;
    object-fit: contain;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-green);
    font-weight: 700;
    font-size: 1.3rem;
}

.logo-icon {
    font-size: 2rem;
}

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

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

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

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

.nav-cta {
    background: var(--secondary-green) !important;
    color: white !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 25px;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-green);
    margin: 3px 0;
    transition: var(--transition);
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 15px 35px;
    margin: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    border: none;
    font-family: var(--font-heading);
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--text-dark);
    box-shadow: 0 4px 15px rgba(232, 196, 104, 0.3);
}

.btn-primary:hover {
    background: #d4b054;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 196, 104, 0.4);
}

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

.btn-secondary:hover {
    background: var(--text-light);
    color: var(--primary-green);
    transform: translateY(-2px);
}

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

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

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

.btn-light:hover {
    background: var(--accent-gold);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 100px 20px 60px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="white"/></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.logo-large {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero h2 {
    font-size: 1.8rem;
    font-weight: 400;
    color: #E8F4F0;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 30px auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    margin-top: 40px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    opacity: 0.7;
}

.scroll-arrow {
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* === PAGE HERO === */
.page-hero {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--secondary-green) 100%);
    color: white;
    padding: 140px 20px 80px;
    text-align: center;
}

.page-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

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

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

.section-title {
    text-align: center;
    color: var(--primary-green);
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto 50px;
    line-height: 1.8;
}

.section-light {
    background: white;
}

.section-gradient {
    background: var(--gradient-bg);
}

.section-dark {
    background: var(--primary-green);
    color: white;
}

.section-dark .section-title {
    color: white;
}

/* === LAYOUTS === */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 40px;
}

.three-column {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.column {
    /* Column styles handled by grid */
}

/* === STORY SECTION === */
.story-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.story-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.icon-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.icon-item {
    text-align: center;
    max-width: 200px;
}

.icon-item .icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 15px;
}

.icon-item h3 {
    font-size: 1.2rem;
    color: var(--primary-green);
    margin-bottom: 10px;
}

.icon-item p {
    font-size: 0.95rem;
    color: #666;
}

/* === LISTS === */
.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    padding-left: 35px;
    position: relative;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-green);
    font-weight: bold;
    font-size: 1.3rem;
}

.process-list {
    padding-left: 20px;
}

.process-list li {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

/* === CARDS === */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.app-card {
    background: #F8F9FA;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.app-card:hover {
    transform: translateY(-8px);
    border-color: var(--secondary-green);
    box-shadow: var(--shadow-md);
}

.app-card .icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 20px;
}

.app-card h3 {
    color: var(--primary-green);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.app-card p {
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: 15px;
}

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

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

/* === TECH BOXES === */
.tech-box, .info-box, .benefit-box, .highlight-box {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
}

.tech-box {
    border-top: 4px solid var(--secondary-green);
}

.highlight-box {
    background: rgba(127, 176, 105, 0.1);
    border-left: 4px solid var(--secondary-green);
}

.tech-table, .performance-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.tech-table td, .performance-table td {
    padding: 12px;
    border-bottom: 1px solid #eee;
}

.tech-table td:last-child {
    text-align: right;
    font-weight: 600;
}

/* === STATS === */
.impact-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-gold);
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    margin-top: 10px;
    opacity: 0.9;
}

/* === SUSTAIN CARDS === */
.sustain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.sustain-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 15px;
    border-left: 4px solid var(--accent-gold);
    backdrop-filter: blur(10px);
}

.sustain-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.sustain-card h3 {
    color: var(--accent-gold);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* === PRODUCT TAGS === */
.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}

.product-tags span {
    background: var(--secondary-green);
    color: white;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
}

/* === CTA SECTION === */
.cta-section {
    background: linear-gradient(135deg, var(--secondary-green) 0%, var(--primary-green) 100%);
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.cta-section h2 {
    color: white;
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.cta-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.cta-buttons {
    margin-top: 30px;
}

/* === FOOTER === */
footer {
    background: var(--dark-bg);
    color: var(--text-gray);
    padding: 60px 20px 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.footer-col h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
}

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

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .two-column {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .three-column {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    
    .hero h1 { font-size: 2.2rem; }
    .hero h2 { font-size: 1.3rem; }
    .logo-large {
        width: 150px;
        height: 150px;
        font-size: 3.5rem;
    }
    
    .page-hero h1 { font-size: 2.2rem; }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 10px 0;
    }
    
    .icon-grid {
        gap: 40px;
    }
    
    .app-grid,
    .three-column,
    .sustain-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 60px 20px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* === UTILITIES === */
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.pt-40 { padding-top: 40px; }
.pb-40 { padding-bottom: 40px; }