/* ===========================
   Reset & Base Styles
   =========================== */

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

:root {
    --primary-blue: #1e3a5f;
    --secondary-blue: #2d5478;
    --accent-blue: #4a7ba7;
    --light-blue: #e8f0f8;
    --dark-text: #1a1a1a;
    --gray-text: #666666;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    color: var(--primary-blue);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===========================
   Navigation
   =========================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--box-shadow);
    padding: 15px 0;
}

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

.logo {
    height: 40px;
    width: auto;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--primary-blue);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-blue);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--accent-blue);
}

.nav-link:hover::after {
    width: 100%;
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-blue);
    transition: var(--transition);
}

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

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

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

body.menu-open {
    overflow: hidden;
}

/* ===========================
   Buttons
   =========================== */

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.btn-hero {
    background-color: var(--white);
    color: var(--primary-blue);
    padding: 15px 40px;
    font-size: 18px;
}

.btn-hero:hover {
    background-color: var(--light-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.btn-cta {
    background-color: var(--white);
    color: var(--primary-blue);
    padding: 15px 40px;
    font-size: 18px;
}

.btn-cta:hover {
    background-color: var(--light-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 255, 255, 0.3);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    padding: 120px 20px 80px;
    margin-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('website_photos/unnamed (5).png');
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.3) 0%, rgba(45, 84, 120, 0.3) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: var(--white);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

.hero-subtitle {
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 30px;
    color: var(--light-blue);
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
}

/* ===========================
   Section Titles
   =========================== */

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-blue);
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-text);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

/* ===========================
   About Section
   =========================== */

.about {
    padding: 100px 20px;
    background-color: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: sticky;
    top: 120px;
}

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


.portrait {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center center;
    max-height: 500px;
}

.about-content {
    padding: 20px 0;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--gray-text);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.expertise-item {
    padding: 25px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.expertise-item:hover {
    background-color: var(--light-blue);
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

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

.expertise-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.expertise-item p {
    font-size: 0.95rem;
    color: var(--gray-text);
    line-height: 1.6;
}

/* ===========================
   Services Section
   =========================== */

.services {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--white) 0%, var(--light-gray) 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
}

.service-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--gray-text);
}

/* ===========================
   Target Audience Section
   =========================== */

.target-audience {
    padding: 100px 20px;
    background-color: var(--white);
}

.target-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: center;
}

.target-content {
    padding-right: 20px;
}

.target-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 40px;
    color: var(--gray-text);
}

.problem-solution {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.problem-box,
.solution-box {
    padding: 30px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-blue);
}

.problem-box {
    background-color: #fff5f5;
}

.solution-box {
    background-color: #f0f9ff;
}

.problem-box h4,
.solution-box h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary-blue);
    font-family: 'Poppins', sans-serif;
}

.problem-box ul,
.solution-box ul {
    list-style-position: inside;
    padding-left: 10px;
}

.problem-box li,
.solution-box li {
    margin-bottom: 10px;
    color: var(--gray-text);
    line-height: 1.6;
}

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

.work-image {
    width: 100%;
    height: 600px;
    object-fit: cover;
    object-position: center top;
}

/* CSS-based cropping to hide Gemini logo at bottom right */
.target-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 25%;
    height: 20%;
    background: linear-gradient(to top left, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

/* ===========================
   Clients Section
   =========================== */

.clients {
    padding: 100px 20px;
    background-color: var(--light-gray);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
    align-items: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    transition: var(--transition);
    height: 120px;
}

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

.client-logo img {
    max-width: 140px;
    max-height: 80px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* Individual logo scaling */
.client-logo:nth-child(3) img {
    transform: scale(0.7);
}

.client-logo:nth-child(7) img {
    transform: scale(1.2);
}

.client-logo:nth-child(8) img {
    transform: scale(1.2);
}

.client-logo:nth-child(9) img {
    transform: scale(1.1);
}

/* ===========================
   CTA Section
   =========================== */

.cta {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('website_photos/unnamed (3).png');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.contact-info {
    margin-top: 30px;
    color: var(--white);
    font-size: 1.1rem;
}

.contact-link {
    color: var(--white);
    text-decoration: underline;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--light-blue);
}

.separator {
    margin: 0 15px;
    opacity: 0.5;
}

/* ===========================
   Footer
   =========================== */

.footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 60px 20px 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-logo {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    margin-bottom: 15px;
}

.footer-tagline {
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-right {
    display: flex;
    gap: 30px;
    align-items: center;
}

.social-link,
.footer-link {
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover,
.footer-link:hover {
    color: var(--light-blue);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* ===========================
   Impressum Modal
   =========================== */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 40px;
    border-radius: var(--border-radius);
    max-width: 800px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-content h2 {
    color: var(--primary-blue);
    margin-bottom: 30px;
    font-size: 2rem;
}

.modal-content h3 {
    color: var(--primary-blue);
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.modal-content h4 {
    color: var(--secondary-blue);
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.impressum-content {
    color: var(--gray-text);
    line-height: 1.8;
}

.impressum-content p {
    margin-bottom: 15px;
}

.impressum-content a {
    color: var(--accent-blue);
    text-decoration: underline;
}

.impressum-content a:hover {
    color: var(--primary-blue);
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: var(--gray-text);
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.close:hover,
.close:focus {
    color: var(--primary-blue);
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 30px 20px;
        box-shadow: var(--box-shadow);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
        gap: 20px;
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-link {
        font-size: 1.1rem;
        padding: 10px 0;
    }

    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        position: relative;
        top: 0;
    }

    .target-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .target-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 100px 20px 60px;
        min-height: 70vh;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .work-image {
        height: 400px;
    }

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

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

    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-right {
        flex-direction: column;
        gap: 15px;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .client-logo {
        height: 100px;
        padding: 15px;
    }

    .client-logo img {
        max-width: 120px;
        max-height: 60px;
    }

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

    .modal-content {
        margin: 10% auto;
        padding: 30px 20px;
        width: 90%;
    }

    .contact-info {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .separator {
        display: none;
    }

    .portrait {
        max-height: 400px;
    }

    .problem-solution {
        gap: 20px;
    }

    .problem-box,
    .solution-box {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .btn-hero,
    .btn-cta {
        padding: 12px 30px;
        font-size: 16px;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .cta-title {
        font-size: 1.75rem;
    }

    .clients {
        padding: 60px 15px;
    }

    .clients-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        max-width: 280px;
    }

    .client-logo {
        height: 100px;
        padding: 20px;
        width: 100%;
    }

    .client-logo img {
        max-width: 180px;
        max-height: 60px;
    }
}