/*
 * M-Network - Modern Professional Design
 * Design modern și profesional pentru electricieni
 * Responsive: Mobile & Desktop
 */

/* ============================================
   1. VARIABLES & RESET
   ============================================ */

:root {
    /* Culori principale - paletă profesională */
    --primary-dark: #1a2332;      /* Albastru închis profesional */
    --primary-blue: #2c3e50;      /* Albastru navy */
    --accent-orange: #f39c12;     /* Portocaliu electric */
    --accent-gold: #f1c40f;       /* Auriu accent */
    --text-dark: #2c3e50;         /* Text principal */
    --text-light: #7f8c8d;        /* Text secundar */
    --bg-light: #f8f9fa;          /* Background deschis */
    --bg-white: #ffffff;          /* Background alb */
    --border-color: #e8e8e8;      /* Culoare borduri */
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ============================================
   2. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

/* ============================================
   3. UTILITIES
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

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

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

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: #e67e22;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* ============================================
   4. HEADER & NAVIGATION
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

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

/* Top Bar */
.header-topbar {
    background: var(--primary-dark);
    padding: 0.625rem 0;
    font-size: 0.875rem;
}

.topbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.topbar-info {
    display: flex;
    gap: var(--spacing-md);
}

.topbar-info a {
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.topbar-info a:hover {
    color: var(--accent-orange);
}

.topbar-info i {
    color: var(--accent-orange);
}

.topbar-social {
    display: flex;
    gap: 0.75rem;
}

.topbar-social a {
    color: rgba(255, 255, 255, 0.8);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.topbar-social a:hover {
    background: var(--accent-orange);
    color: var(--bg-white);
}

/* Main Navigation */
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    height: 120px;        /* Mărit de la 80px la 120px */
    width: auto;
    max-width: 350px;     /* Mărit de la 250px la 350px */
}

.logo img {
    height: 100%;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    display: block;
    position: relative;
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-orange);
    transition: var(--transition);
}

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

/* Dropdown Menu */
.nav-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 0.75rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.sub-menu li {
    padding: 0;
}

.sub-menu a {
    display: block;
    padding: 0.625rem 1.25rem;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.sub-menu a:hover {
    background: var(--bg-light);
    color: var(--accent-orange);
    padding-left: 1.5rem;
}

.sub-menu .sub-menu {
    top: 0;
    left: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--primary-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.cta-button {
    margin-left: var(--spacing-sm);
}

/* ============================================
   5. HERO / BANNER SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: calc(100vh - 140px);
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    margin-top: 110px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--bg-white);
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    background: rgba(243, 156, 18, 0.2);
    color: var(--accent-orange);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--accent-orange);
}

.hero h1 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1.2;
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.15;
}

.hero-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* ============================================
   6. ABOUT SECTION
   ============================================ */

.about {
    padding: var(--spacing-xl) 0;
}

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

.about-content {
    padding: var(--spacing-md);
}

.section-badge {
    display: inline-block;
    background: rgba(243, 156, 18, 0.1);
    color: var(--accent-orange);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about h2 {
    margin-bottom: var(--spacing-md);
}

.about p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.feature-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-sm);
    background: var(--accent-orange);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--bg-white);
}

.feature-item h4 {
    font-size: 1rem;
    margin-bottom: 0;
}

.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.experience-badge {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--accent-orange);
    color: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.experience-badge h3 {
    color: var(--bg-white);
    font-size: 2.5rem;
    margin-bottom: 0;
}

.experience-badge p {
    margin: 0;
    color: var(--bg-white);
    font-weight: 600;
}

/* ============================================
   7. SERVICES SECTION
   ============================================ */

.services {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.section-header p {
    color: var(--text-light);
    font-size: 1.125rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-orange);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-gold) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--bg-white);
}

.service-icon img {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.service-link {
    color: var(--accent-orange);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.service-link:hover {
    gap: 0.75rem;
}

.service-link i {
    transition: var(--transition);
}

/* ============================================
   8. STATS / COUNTER SECTION
   ============================================ */

.stats {
    background: var(--primary-dark);
    padding: var(--spacing-xl) 0;
    color: var(--bg-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

/* ============================================
   9. CTA SECTION
   ============================================ */

.cta {
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-gold) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
    color: var(--bg-white);
}

.cta h2 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
}

.cta p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-white {
    background: var(--bg-white);
    color: var(--accent-orange);
}

.btn-white:hover {
    background: var(--bg-light);
    transform: translateY(-2px);
}

/* ============================================
   10. FOOTER
   ============================================ */

.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-column h4 {
    color: var(--bg-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-column p,
.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.75rem;
    display: block;
    transition: var(--transition);
}

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

.footer-logo {
    height: 140px;        /* Mărit de la 100px la 140px */
    width: auto;
    max-width: 350px;     /* Mărit de la 250px la 350px */
    object-fit: contain;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent-orange);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   11. CONTACT INFO
   ============================================ */

.contact-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

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

.contact-icon i {
    color: var(--bg-white);
    font-size: 1.25rem;
}

/* ============================================
   12. RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 992px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-xl: 3rem;
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 110px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        max-height: calc(100vh - 110px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-sm);
        margin-top: 0.5rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        display: none;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }
    
    .topbar-info {
        flex-direction: column;
        gap: 0.5rem;
        font-size: 0.75rem;
    }
    
    .topbar-social {
        display: none;
    }
    
    .logo {
        height: 50px;
    }
    
    .cta-button {
        display: none;
    }
    
    .hero {
        min-height: 70vh;
        margin-top: 100px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

/* ============================================
   13. ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ============================================
   14. UTILITY CLASSES
   ============================================ */

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   15. PRINT STYLES
   ============================================ */

@media print {
    .header-topbar,
    .menu-toggle,
    .btn,
    .footer-social {
        display: none;
    }
    
    * {
        background: white !important;
        color: black !important;
    }
}