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

:root {
    --black: #000000;
    --dark-gray: #2c2c2c;
    --medium-gray: #666666;
    --light-gray: #e5e5e5;
    --white: #ffffff;
    --transition: all 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--white);
}

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

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

.header {
    text-align: center;
    padding: 60px 40px;
    background: var(--black);
    color: var(--white);
    border-bottom: 3px solid var(--dark-gray);
}

.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.header-logo-img {
    width: 180px;
    height: auto;
    display: block;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border: 3px solid white;
}

.company-name {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--white);
    margin: 0;
}

.company-tagline {
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 10px;
    text-transform: uppercase;
    color: var(--light-gray);
    margin: 0;
}

.section-title {
    font-size: 32px;
    color: var(--black);
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.about-section {
    padding: 80px 40px;
    text-align: center;
    background: var(--white);
}

.about-text {
    font-size: 18px;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--medium-gray);
    font-weight: 400;
}

.authorization-badge {
    display: inline-block;
    padding: 20px 50px;
    background: var(--black);
    color: var(--white);
    border: 3px solid var(--dark-gray);
}

.authorized-label {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.authorized-name {
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.services-section {
    padding: 80px 40px;
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2px;
    margin-bottom: 50px;
    background: var(--medium-gray);
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    transition: var(--transition);
}

.service-card:hover {
    background: var(--black);
}

.service-card:hover .service-title,
.service-card:hover .service-description {
    color: var(--white);
}

.service-title {
    color: var(--black);
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.service-description {
    color: var(--medium-gray);
    font-size: 15px;
    line-height: 1.6;
    font-weight: 400;
    transition: var(--transition);
}

.seap-notice {
    text-align: center;
    padding: 30px;
    background: var(--black);
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 3px solid var(--dark-gray);
}

.portfolio-section {
    padding: 80px 40px;
    background: var(--white);
}

.portfolio-subtitle {
    text-align: center;
    color: var(--medium-gray);
    font-size: 16px;
    margin-bottom: 50px;
    font-weight: 400;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2px;
    background: var(--medium-gray);
}

.portfolio-item {
    background: var(--white);
    overflow: hidden;
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.image-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: relative;
    gap: 2px;
    background: var(--medium-gray);
}

.before-image,
.after-image {
    position: relative;
    overflow: hidden;
}

.before-image img,
.after-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    filter: grayscale(20%);
    transition: var(--transition);
}

.portfolio-item:hover .before-image img,
.portfolio-item:hover .after-image img {
    filter: grayscale(0%);
}

.image-label {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--black);
    color: var(--white);
    padding: 8px 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 2px solid var(--white);
}

.project-type {
    text-align: center;
    padding: 20px;
    font-weight: 700;
    color: var(--black);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: var(--white);
}

.contact-section {
    padding: 80px 40px;
    background: var(--light-gray);
}

.contact-title {
    font-size: 36px;
    margin-bottom: 50px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2px;
    background: var(--medium-gray);
}

.contact-card {
    background: var(--white);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

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

.contact-card:hover h3,
.contact-card:hover h4,
.contact-card:hover p,
.contact-card:hover a {
    color: var(--white);
}

.contact-card h3 {
    color: var(--black);
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.contact-card h4 {
    color: var(--medium-gray);
    font-size: 12px;
    margin-bottom: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition);
}

.contact-card p {
    color: var(--dark-gray);
    font-size: 15px;
    font-weight: 400;
    transition: var(--transition);
}

.contact-card a {
    color: var(--black);
    font-weight: 600;
    transition: var(--transition);
}

.cui {
    font-weight: 700;
    color: var(--dark-gray);
}

.footer {
    text-align: center;
    padding: 40px 20px;
    background: var(--black);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-top: 3px solid var(--dark-gray);
}

.no-data {
    text-align: center;
    color: var(--medium-gray);
    font-style: italic;
    padding: 60px 20px;
    grid-column: 1 / -1;
    font-size: 16px;
}

@media (max-width: 768px) {
    .header {
        padding: 40px 20px;
    }

    .header-logo-img {
        width: 140px;
    }

    .company-name {
        font-size: 18px;
    }

    .company-tagline {
        font-size: 12px;
        letter-spacing: 6px;
    }

    .section-title {
        font-size: 24px;
    }

    .about-section,
    .services-section,
    .portfolio-section,
    .contact-section {
        padding: 60px 20px;
    }

    .portfolio-grid,
    .services-grid,
    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header-logo-img {
        width: 110px;
    }

    .company-name {
        font-size: 16px;
    }

    .company-tagline {
        font-size: 10px;
        letter-spacing: 4px;
    }
}

.about-section {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.about-overlay {
    background: rgba(255, 255, 255, 0.92);
    padding: 80px 40px;
}

@media (max-width: 768px) {
    .about-overlay {
        padding: 60px 20px;
    }
}

.about-section {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.about-overlay {
    background: rgba(255, 255, 255, 0.92);
    padding: 80px 40px;
}

@media (max-width: 768px) {
    .about-overlay {
        padding: 60px 20px;
    }
}

.about-section-hero {
    padding: 100px 40px;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.section-title-white {
    font-size: 32px;
    color: var(--white);
    margin-bottom: 30px;
    text-align: center;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.about-text-white {
    font-size: 18px;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 50px;
    color: var(--white);
    font-weight: 400;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
}

.authorization-logo {
    display: inline-block;
    text-align: center;
}

.authorized-label-white {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
}

.arhivele-logo {
    max-width: 250px;
    height: auto;
    display: block;
    margin: 0 auto;
    background: white;
    padding: 15px;
    border: 3px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .about-section-hero {
        padding: 80px 20px;
    }

    .section-title-white {
        font-size: 24px;
    }

    .about-text-white {
        font-size: 16px;
    }

    .arhivele-logo {
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .about-section-hero {
        padding: 60px 20px;
    }

    .section-title-white {
        font-size: 20px;
    }

    .arhivele-logo {
        max-width: 150px;
    }
}

/* Sticky Header */
.header-sticky {
    position: fixed;
    top: -100px;
    left: 0;
    right: 0;
    background: var(--black);
    border-bottom: 2px solid var(--dark-gray);
    z-index: 1000;
    transition: top 0.3s ease, padding 0.3s ease;
    padding: 0;
}

.header-sticky.show {
    top: 0;
    padding: 15px 0;
}

.sticky-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.sticky-logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sticky-logo {
    width: 50px;
    height: auto;
    background: white;
    padding: 8px;
    border: 2px solid white;
    transition: all 0.3s ease;
}

.sticky-company-name {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--white);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .sticky-content {
        padding: 0 20px;
    }

    .sticky-logo {
        width: 40px;
        padding: 6px;
    }

    .sticky-company-name {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .sticky-logo {
        width: 35px;
        padding: 5px;
    }

    .sticky-company-name {
        font-size: 10px;
        letter-spacing: 1px;
    }
}