/* CSS Variables */
:root {
    --primary-yellow: #D4A012;
    --primary-black: #1A1A1A;
    --dark-gray: #2D2D2D;
    --medium-gray: #5A5A5A;
    --light-gray: #F8F8F8;
    --border-gray: #E8E8E8;
    --white: #FFFFFF;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--primary-black);
    background-color: var(--white);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 60px;
    width: auto;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-black);
    position: relative;
    padding: 5px 0;
}

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

.nav-link:hover::after,
.nav-link:hover {
    width: 100%;
    color: var(--primary-black);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--primary-black);
    transition: var(--transition);
}

.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);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-black);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(212, 160, 18, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(212, 160, 18, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 40px 20px;
}

.hero-logo {
    max-width: 300px;
    margin-bottom: 30px;
    background: var(--white);
    padding: 24px 32px;
    border-radius: 8px;
}

.hero-slogan {
    color: var(--primary-yellow);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-title {
    color: var(--white);
    font-size: 44px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 17px;
    max-width: 550px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--primary-yellow);
    color: var(--primary-black);
    border-color: var(--primary-yellow);
}

.btn-primary:hover {
    background: #c4940f;
    border-color: #c4940f;
    transform: translateY(-2px);
}

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

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

.btn-secondary {
    background: var(--primary-black);
    color: var(--white);
    border-color: var(--primary-black);
    padding: 12px 24px;
    font-size: 12px;
}

.btn-secondary:hover {
    background: var(--dark-gray);
    border-color: var(--dark-gray);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
    border-color: #25D366;
}

.btn-whatsapp:hover {
    background: #20bd5a;
    border-color: #20bd5a;
    transform: translateY(-2px);
}

.btn-call {
    background: var(--primary-black);
    color: var(--white);
    border-color: var(--primary-black);
}

.btn-call:hover {
    background: var(--dark-gray);
    border-color: var(--dark-gray);
}

.btn-email {
    background: transparent;
    color: var(--primary-black);
    border-color: var(--border-gray);
}

.btn-email:hover {
    background: var(--light-gray);
    border-color: var(--border-gray);
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--primary-black);
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--primary-yellow);
    margin: 20px auto 0;
}

.section-subtitle {
    text-align: center;
    color: var(--medium-gray);
    font-size: 17px;
    max-width: 550px;
    margin: 0 auto 60px;
    line-height: 1.7;
}

/* About Section */
.about {
    background: var(--light-gray);
}

.about-text {
    max-width: 850px;
    margin: 0 auto;
}

.about-intro {
    font-size: 19px;
    line-height: 1.8;
    margin-bottom: 16px;
    color: var(--primary-black);
}

.about-text > p {
    color: var(--medium-gray);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 50px;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.value-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--white);
    border-radius: 6px;
    border: 1px solid var(--border-gray);
    transition: var(--transition);
}

.value-item:hover {
    box-shadow: var(--shadow);
    border-color: transparent;
}

.value-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.value-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-yellow);
}

.value-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-black);
}

.value-item p {
    color: var(--medium-gray);
    font-size: 14px;
    line-height: 1.6;
}

/* Products Section */
.products {
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.product-card {
    background: var(--light-gray);
    padding: 32px 24px;
    border-radius: 6px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.product-card:hover {
    background: var(--white);
    border-color: var(--border-gray);
    box-shadow: var(--shadow-lg);
}

.product-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-black);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.product-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary-yellow);
}

.product-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-black);
}

.product-card p {
    color: var(--medium-gray);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-card-custom {
    background: var(--primary-black);
}

.product-card-custom:hover {
    background: var(--dark-gray);
    border-color: transparent;
}

.product-card-custom h3,
.product-card-custom p {
    color: var(--white);
}

.product-card-custom p {
    color: rgba(255, 255, 255, 0.7);
}

.product-card-custom .product-icon {
    background: var(--primary-yellow);
}

.product-card-custom .product-icon svg {
    color: var(--primary-black);
}

/* Why Choose Us Section */
.why-us {
    background: var(--light-gray);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.why-us-card {
    position: relative;
    padding: 40px 28px 36px;
    background: var(--white);
    border-radius: 6px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-gray);
}

.why-us-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.why-us-number {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 48px;
    font-weight: 800;
    color: var(--light-gray);
    line-height: 1;
}

.why-us-icon {
    width: 72px;
    height: 72px;
    background: var(--primary-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.why-us-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-yellow);
}

.why-us-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--primary-black);
}

.why-us-card p {
    color: var(--medium-gray);
    font-size: 15px;
    line-height: 1.7;
}

/* Contact Section */
.contact {
    background: var(--primary-black);
}

.contact .section-title {
    color: var(--white);
}

.contact .section-title::after {
    background: var(--primary-yellow);
}

.contact .section-subtitle {
    color: rgba(255, 255, 255, 0.6);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

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

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--dark-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--primary-yellow);
}

.contact-details h4 {
    color: var(--white);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.contact-details a,
.contact-details p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    display: block;
    line-height: 1.6;
}

.contact-details a:hover {
    color: var(--primary-yellow);
}

.contact-actions {
    background: var(--white);
    padding: 36px;
    border-radius: 6px;
}

.contact-actions h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--primary-black);
}

.contact-actions > p {
    color: var(--medium-gray);
    margin-bottom: 28px;
    font-size: 15px;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.action-buttons .btn {
    width: 100%;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    max-width: 160px;
    margin-bottom: 16px;
    background: var(--white);
    padding: 14px 18px;
    border-radius: 6px;
}

.footer-slogan {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    font-weight: 500;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

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

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

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

.footer-contact p,
.footer-contact a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    display: block;
    margin-bottom: 8px;
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-card:last-child {
        grid-column: span 2;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 900px) {
    .header .container {
        height: 70px;
    }

    .logo img {
        height: 50px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--light-gray);
    }

    .hero {
        padding-top: 70px;
    }

    .hero-logo {
        max-width: 240px;
        padding: 18px 24px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .about-values {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-logo {
        margin: 0 auto 16px;
    }
}

@media (max-width: 600px) {
    .hero-logo {
        max-width: 200px;
        padding: 14px 20px;
    }

    .hero-title {
        font-size: 26px;
    }

    .hero-slogan {
        font-size: 12px;
        letter-spacing: 3px;
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
    }

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

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .why-us-card:last-child {
        grid-column: span 1;
        max-width: none;
    }

    .section-title {
        font-size: 26px;
    }

    .section-subtitle {
        font-size: 15px;
    }

    .about-intro {
        font-size: 17px;
    }

    .contact-actions {
        padding: 28px 20px;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content > * {
    animation: fadeInUp 0.6s ease forwards;
}

.hero-logo { animation-delay: 0.1s; }
.hero-slogan { animation-delay: 0.15s; }
.hero-title { animation-delay: 0.2s; }
.hero-subtitle { animation-delay: 0.25s; }
.hero-buttons { animation-delay: 0.3s; }