/* ========================================
   MODERN CLEAN - Martin Pustovka
   Professional Electrician Website
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    --accent-primary: #2563eb;
    --accent-secondary: #3b82f6;
    --accent-light: #dbeafe;
    --accent-dark: #1d4ed8;

    --orange: #f97316;
    --orange-light: #ffedd5;

    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    border-radius: var(--radius-md);
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-menu a {
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-menu .nav-cta {
    background: var(--accent-primary);
    color: white !important;
    margin-left: 8px;
}

.nav-menu .nav-cta:hover {
    background: var(--accent-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
}

.nav-toggle:hover {
    background: var(--bg-secondary);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    padding: 140px 24px 100px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-light);
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-title .highlight {
    color: var(--accent-primary);
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
}

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

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: var(--shadow-md), 0 0 0 0 rgba(37, 99, 235, 0.5);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(37, 99, 235, 0.15);
}

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-white {
    background: white;
    color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Hero Trust Items */
.hero-trust {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.trust-item svg {
    width: 18px;
    height: 18px;
    color: var(--accent-primary);
}

/* Hero Image/Visual */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.hero-shape {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--orange-light) 100%);
    border-radius: 50%;
    position: absolute;
}

.image-card {
    position: relative;
    z-index: 1;
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.card-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: var(--radius-lg);
}

.card-icon svg {
    width: 40px;
    height: 40px;
    color: var(--accent-primary);
}

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

.card-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.card-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-primary);
}

/* ========================================
   SECTIONS COMMON
   ======================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-light);
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.service-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

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

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.service-link svg {
    width: 16px;
    height: 16px;
    transition: var(--transition-fast);
}

.service-link:hover {
    gap: 12px;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.about-shape {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--orange-light) 100%);
    border-radius: var(--radius-xl);
    transform: rotate(6deg);
    position: absolute;
}

.about-card {
    position: relative;
    z-index: 1;
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.about-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    border-radius: var(--radius-lg);
    margin: 0 auto 20px;
}

.about-icon svg {
    width: 35px;
    height: 35px;
    color: white;
}

.about-card h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.about-content .section-tag {
    display: inline-block;
}

.about-content .section-title {
    text-align: left;
    font-size: 2.2rem;
}

.about-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-check {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-check svg {
    width: 14px;
    height: 14px;
    color: var(--accent-primary);
}

.feature-content strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.feature-content span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta {
    background: var(--accent-primary);
    padding: 80px 0;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition-normal);
}

.contact-card:hover {
    background: var(--bg-tertiary);
}

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

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

.contact-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.contact-info p,
.contact-info a {
    font-size: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.6;
}

.contact-info a:hover {
    color: var(--accent-primary);
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 350px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

.footer-contact p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 8px;
}

.footer-contact a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

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

.footer-legal {
    font-size: 0.85rem;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-desc {
        max-width: 100%;
        margin: 0 auto 32px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-trust {
        justify-content: center;
    }

    .hero-image {
        min-height: 300px;
    }

    .hero-shape {
        width: 280px;
        height: 280px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .about-content .section-title {
        text-align: center;
    }

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

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

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

    .footer-brand .logo {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition-normal);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-menu a {
        width: 100%;
        text-align: center;
    }

    .nav-menu .nav-cta {
        margin-left: 0;
        margin-top: 8px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 120px 24px 80px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .cta-content h2 {
        font-size: 1.8rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.9rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

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