/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --primary-color: #0066cc;
    --primary-dark: #0052a3;
    --primary-light: #3385d6;
    --secondary-color: #00a8e8;
    --accent-color: #ff6b35;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --text-lighter: #999999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, #0066cc 0%, #00a8e8 100%);
    --gradient-hero: linear-gradient(135deg, #0066cc 0%, #0052a3 50%, #00a8e8 100%);
    --transition: all 0.3s ease;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: 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;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section__header {
    text-align: center;
    margin-bottom: 4rem;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

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

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 20px;
    gap: 2rem;
}

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

.nav__logo a {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.nav__logo a:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.nav__logo-img {
    height: auto;
    max-height: 60px;
    width: auto;
    display: block;
}

.nav__contact {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav__phone,
.nav__email,
.nav__lang {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
}

.nav__lang {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    font-weight: 700;
    min-width: 40px;
    justify-content: center;
}

.nav__phone:hover,
.nav__email:hover {
    color: var(--primary-color);
    background: var(--bg-light);
}

.nav__icon {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

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

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

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

.btn--large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    background: var(--gradient-hero);
    color: var(--bg-white);
    padding: 6rem 0 8rem;
    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(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero__container {
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero__subtitle {
    font-size: 1.375rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
}

.hero__features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero__feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
}

.hero__feature svg {
    width: 20px;
    height: 20px;
    stroke-width: 3;
}

.hero__cta {
    display: flex;
    justify-content: center;
}

.hero__wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
    color: var(--bg-white);
    overflow: hidden;
}

.hero__wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: 6rem 0;
    background: var(--bg-white);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
}

.service__card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.service__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service__icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--bg-white);
}

.service__icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 2.5;
}

.service__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.service__description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service__list {
    list-style: none;
    padding: 0;
}

.service__list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.service__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.125rem;
}

/* ============================================
   Why Us Section
   ============================================ */
.why-us {
    padding: 6rem 0;
    background: var(--bg-light);
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.why-us__item {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.why-us__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.why-us__icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--bg-white);
}

.why-us__icon svg {
    width: 35px;
    height: 35px;
    stroke-width: 2.5;
}

.why-us__item h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.why-us__item p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   Service Areas Section
   ============================================ */
.service-areas {
    padding: 6rem 0;
    background: var(--bg-light);
}

.service-areas__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.service-areas__group {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.service-areas__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-areas__description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-areas__list {
    list-style: none;
    padding: 0;
}

.service-areas__list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.service-areas__list li::before {
    content: '📍';
    position: absolute;
    left: 0;
    font-size: 1rem;
}

.service-areas__cta {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.service-areas__cta-text {
    font-size: 1.125rem;
    color: var(--text-dark);
    line-height: 1.7;
}

.service-areas__cta-text a {
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: underline;
}

.service-areas__cta-text a:hover {
    color: var(--primary-dark);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq {
    padding: 6rem 0;
    background: var(--bg-white);
}

.faq__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.faq__item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.faq__item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.faq__question {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.faq__answer {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    padding: 6rem 0;
    background: var(--gradient-primary);
    color: var(--bg-white);
    text-align: center;
}

.cta__content {
    max-width: 700px;
    margin: 0 auto;
}

.cta__title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.cta__subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.cta__buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cta .btn--secondary {
    background: var(--bg-white);
    color: var(--primary-color);
    border-color: var(--bg-white);
}

.cta .btn--secondary:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: #1a1a1a;
    color: #cccccc;
    padding: 4rem 0 2rem;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--bg-white);
    margin-bottom: 1rem;
}

.footer__description {
    color: #999999;
    line-height: 1.7;
}

.footer__heading {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 1rem;
}

.footer__links li {
    margin-bottom: 0.75rem;
}

.footer__links a {
    color: #999999;
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--bg-white);
    padding-left: 5px;
}

.footer__contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: #999999;
}

.footer__contact a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #999999;
    transition: var(--transition);
}

.footer__contact a:hover {
    color: var(--bg-white);
}

.footer__contact svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.footer__bottom {
    border-top: 1px solid #333333;
    padding-top: 2rem;
    text-align: center;
    color: #666666;
    font-size: 0.875rem;
}

.footer__bottom p {
    margin-bottom: 0.5rem;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 968px) {
    .nav__contact {
        display: none;
    }
    
    .nav__contact.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        box-shadow: var(--shadow-lg);
        padding: 1rem;
        gap: 0.5rem;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__logo-img {
        max-height: 50px;
    }
    
    .nav__lang {
        width: 100%;
        justify-content: center;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__subtitle {
        font-size: 1.125rem;
    }
    
    .section__title {
        font-size: 2rem;
    }
    
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    .why-us__grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .service-areas__content {
        grid-template-columns: 1fr;
    }
    
    .faq__grid {
        grid-template-columns: 1fr;
    }
    
    .cta__title {
        font-size: 2rem;
    }
    
    .cta__buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .cta__buttons .btn {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .nav__logo-img {
        max-height: 45px;
        max-width: 200px;
    }
    
    .hero {
        padding: 4rem 0 6rem;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__subtitle {
        font-size: 1rem;
    }
    
    .hero__features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section__title {
        font-size: 1.75rem;
    }
    
    .service__card {
        padding: 2rem;
    }
    
    .why-us__item {
        padding: 2rem;
    }
    
    .cta {
        padding: 4rem 0;
    }
    
    .cta__title {
        font-size: 1.75rem;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ============================================
   Accessibility & Performance
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .nav__toggle,
    .cta,
    .footer {
        display: none;
    }
}