/* ============================================
   Taňcula – Design System
   Industrial, Modern, Professional
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Roboto:wght@300;400;500;700&display=swap');

:root {
    /* Colors */
    --bg-main: #f4f4f4; /* Light grey */
    --bg-card: #ffffff;
    --text-main: #1a1a1a; /* Almost black */
    --text-muted: #666666;
    --accent-primary: #e60000; /* Red from logo */
    --accent-hover: #cc0000;
    --accent-dark: #333333; /* Dark grey */
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    
    /* Layout */
    --container-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Effects */
    --shadow-soft: 0 4px 15px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    font-weight: 700;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

/* ============================================
   Components
   ============================================ */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #fff;
    box-shadow: 0 4px 10px rgba(230, 0, 0, 0.2);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(230, 0, 0, 0.3);
    color: #fff;
}

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

.btn-outline:hover {
    background-color: var(--text-main);
    color: #fff;
}

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

.section-title h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    text-transform: uppercase;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent-primary);
}

.section-title p {
    color: var(--text-muted);
    margin-top: var(--space-md);
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Navigation
   ============================================ */
.top-bar {
    background-color: var(--accent-dark);
    color: #fff;
    padding: 10px 0;
    font-size: 0.9rem;
}

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

.top-contact {
    display: flex;
    gap: 20px;
}

.top-contact a {
    color: #ccc;
    display: flex;
    align-items: center;
    gap: 5px;
}

.top-contact a:hover {
    color: #fff;
}

.navbar {
    background-color: var(--bg-card);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 50px;
}

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

.nav-links a {
    font-weight: 600;
    font-size: 1rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    position: relative;
    padding: 5px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent-primary);
    transition: var(--transition);
}

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

.nav-links a.active {
    color: var(--accent-primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1586770929831-7e8e602283a0?auto=format&fit=crop&q=80') center/cover;
    min-height: 500px;
    display: flex;
    align-items: center;
    color: white;
}

.hero-content {
    max-width: 800px;
    padding-bottom: 80px;
}

.hero h1 {
    color: white;
    font-size: 3.5rem;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--accent-primary);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #e0e0e0;
}

/* ============================================
   Services Overview
   ============================================ */
.section {
    padding: var(--space-xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

.service-card {
    background-color: var(--bg-card);
    padding: 30px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-hover);
    text-align: center;
    transition: var(--transition);
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--accent-primary);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Product Offers
   ============================================ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.product-img {
    height: 200px;
    position: relative;
    background: #fff;
    padding: 20px;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-price {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-primary);
    color: white;
    padding: 5px 10px;
    font-weight: 700;
    border-radius: 4px;
    font-size: 0.9rem;
}

.product-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-dark);
}

.product-specs {
    margin-bottom: 20px;
    flex-grow: 1;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

.spec-label {
    color: var(--text-muted);
}

.spec-value {
    font-weight: 600;
}

.product-action {
    margin-top: auto;
}

/* ============================================
   Contact Section & Form
   ============================================ */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    background: var(--bg-card);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.contact-info h3 {
    margin-bottom: 20px;
}

.info-item {
    margin-bottom: 20px;
}

.info-item h4 {
    margin-bottom: 5px;
    color: var(--accent-primary);
    font-size: 1.1rem;
}

.info-item p {
    color: var(--text-muted);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(230, 0, 0, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-disclaimer {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.form-disclaimer a {
    color: var(--accent-primary);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--accent-dark);
    color: #fff;
    padding: var(--space-lg) 0 var(--space-md);
}

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

.footer-brand p {
    color: #ccc;
    margin-top: 15px;
    max-width: 300px;
}

.footer h4 {
    color: white;
    margin-bottom: 20px;
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 1.1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #ccc;
}

.footer-links a:hover {
    color: var(--accent-primary);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #888;
    font-size: 0.9rem;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: var(--space-md);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-card);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: var(--shadow-soft);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .contact-form .form-row {
        grid-template-columns: 1fr;
    }
}