/* ==========================================
   AGROIMAGINA - Main Styles
   Modern B2B Food Distribution Website
   ========================================== */

/* CSS Variables */
:root {
    /* Colors - Earth tones with professional feel */
    --color-bg-primary: #0d0d0b;
    --color-bg-secondary: #1a1918;
    --color-bg-tertiary: #242320;
    --color-bg-card: #1e1d1b;
    
    --color-text-primary: #f5f4f0;
    --color-text-secondary: #a8a59e;
    --color-text-muted: #6b6862;
    
    --color-accent: #7cb342;
    --color-accent-light: #9ccc65;
    --color-accent-dark: #558b2f;
    
    --color-earth-brown: #8d6e4c;
    --color-earth-tan: #c9b896;
    --color-whatsapp: #25d366;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Header */
    --header-height: 80px;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 1rem 2rem;
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124, 179, 66, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-text-muted);
}

.btn-secondary:hover {
    border-color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-full {
    width: 100%;
}

.whatsapp-icon {
    width: 20px;
    height: 20px;
}

/* ==========================================
   HEADER
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(13, 13, 11, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(13, 13, 11, 0.95);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
}

.logo-img {
    height: 40px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
}

.nav-list {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(13, 13, 11, 0.7) 0%,
        rgba(13, 13, 11, 0.5) 50%,
        rgba(13, 13, 11, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--space-lg);
    padding-top: var(--header-height);
}

.hero-tag {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-xl);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: var(--font-weight-bold);
    line-height: 1.05;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-earth-tan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 650px;
    margin: 0 auto var(--space-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    animation: pulse 2s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.section-about {
    background: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-content {
    padding-right: var(--space-xl);
}

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.about-video {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.feature-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================
   PRODUCTS SECTION
   ========================================== */

.section-products {
    background: var(--color-bg-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.product-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(124, 179, 66, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.product-description {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.product-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.product-list li {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
}

.products-cta {
    text-align: center;
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.products-cta p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    font-size: 1.0625rem;
}

/* ==========================================
   WHY US SECTION
   ========================================== */

.section-why {
    background: var(--color-bg-secondary);
}

.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.why-video {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.why-content {
    padding-left: var(--space-xl);
}

.why-features {
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.why-feature {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.why-feature:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(8px);
}

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

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-content h4 {
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
}

.feature-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.section-contact {
    background: var(--color-bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact-description {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-method:hover {
    transform: translateX(8px);
}

.contact-method.whatsapp {
    background: rgba(37, 211, 102, 0.1);
    border: 1px solid rgba(37, 211, 102, 0.3);
}

.contact-method.whatsapp:hover {
    background: rgba(37, 211, 102, 0.2);
}

.contact-method svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.contact-method.whatsapp svg {
    color: var(--color-whatsapp);
}

.method-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 2px;
}

.method-value {
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

/* Contact Form */
.contact-form-container {
    background: var(--color-bg-secondary);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
    padding: var(--space-md);
    background: var(--color-bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(124, 179, 66, 0.2);
}

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

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    display: block;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    color: var(--color-text-secondary);
    max-width: 300px;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-contact p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.admin-link {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.admin-link:hover {
    opacity: 1;
}

/* ==========================================
   WHATSAPP FLOATING BUTTON
   ========================================== */

.whatsapp-float {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 60px;
    height: 60px;
    background: var(--color-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    color: #fff;
}

/* ==========================================
   ANIMATIONS - Reveal on Scroll
   ========================================== */

.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0);
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .about-grid,
    .why-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .about-content,
    .why-content {
        padding: 0;
    }
    
    .why-grid {
        direction: ltr;
    }
    
    .why-video {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg-primary);
        padding: var(--space-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .nav-link {
        font-size: 1rem;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .product-card {
        padding: var(--space-lg);
    }
    
    .whatsapp-float {
        width: 52px;
        height: 52px;
        bottom: var(--space-md);
        right: var(--space-md);
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
}