/* ============================================
   MODERN RESET & VARIABLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0a58ca;
    --primary-dark: #003d82;
    --primary-light: #e8f0fe;
    --secondary: #1a2a3a;
    --accent: #00b4d8;
    --gray-50: #f8fafc;
    --gray-100: #f1f4f9;
    --gray-200: #e9edf2;
    --gray-300: #d0d7de;
    --gray-500: #8b9aae;
    --gray-600: #6b7a8f;
    --gray-700: #4a5a6e;
    --gray-800: #1e2a3a;
    --gray-900: #0d1824;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
    --shadow-xl: 0 30px 80px rgba(0,0,0,0.12);
    --radius: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

    a:hover {
        color: var(--primary-dark);
    }

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

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

.section-padding {
    padding: 80px 0;
}

.section-padding-sm {
    padding: 60px 0;
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.04);
    padding: 12px 0;
    transition: var(--transition);
}

    #header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
    }

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

    .logo img {
        height: 50px;
        width: auto;
        object-fit: contain;
    }

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

    .navbar ul {
        display: flex;
        list-style: none;
        gap: 4px;
        margin: 0;
        padding: 0;
        align-items: center;
    }

        .navbar ul li a {
            display: block;
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--gray-600);
            border-radius: 40px;
            transition: var(--transition);
        }

            .navbar ul li a:hover,
            .navbar ul li a.active {
                color: var(--primary);
                background: var(--primary-light);
            }

.btn-nav-cta {
    background: var(--primary) !important;
    color: white !important;
    padding: 8px 24px !important;
    border-radius: 40px !important;
    font-weight: 600 !important;
}

    .btn-nav-cta:hover {
        background: var(--primary-dark) !important;
        color: white !important;
        transform: translateY(-2px);
        box-shadow: 0 4px 16px rgba(10,88,202,0.3);
    }

    .btn-nav-cta.support-btn {
        background: #28a745 !important;
    }

        .btn-nav-cta.support-btn:hover {
            background: #1e7e34 !important;
        }

.mobile-nav-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--gray-800);
    background: none;
    border: none;
    padding: 4px 8px;
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }

    .navbar ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: white;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius) var(--radius);
        gap: 4px;
        border-top: 1px solid rgba(0,0,0,0.05);
    }

        .navbar ul.open {
            display: flex;
        }

        .navbar ul li a {
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 1rem;
            width: 100%;
            text-align: left;
        }

    .btn-nav-cta {
        text-align: center !important;
        margin-top: 4px;
    }

    .logo img {
        height: 38px;
    }
}

@media (max-width: 480px) {
    .logo img {
        height: 32px;
    }

    #header .container {
        padding: 0 16px;
    }
}

/* ============================================
   HERO
   ============================================ */
#hero {
    padding: 140px 0 80px;
    background: linear-gradient(160deg, #f0f7ff 0%, #ffffff 60%);
    position: relative;
    overflow: hidden;
}

    #hero::before {
        content: '';
        position: absolute;
        top: -30%;
        right: -10%;
        width: 700px;
        height: 700px;
        background: radial-gradient(circle, rgba(10,88,202,0.05) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    #hero::after {
        content: '';
        position: absolute;
        bottom: -20%;
        left: -10%;
        width: 500px;
        height: 500px;
        background: radial-gradient(circle, rgba(0,180,216,0.04) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    #hero .row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
        position: relative;
        z-index: 1;
    }

.hero-content {
    grid-column: 1 / -1;
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 20px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--gray-900);
    margin-bottom: 20px;
    letter-spacing: -1.5px;
}

    .hero-content h1 .highlight {
        color: var(--primary);
        position: relative;
        display: inline-block;
    }

        .hero-content h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 6px;
            background: var(--primary-light);
            border-radius: 4px;
            z-index: -1;
        }

.hero-content .subtitle {
    font-size: 1.15rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

    .hero-stats .stat {
        text-align: center;
    }

    .hero-stats .stat-number {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--gray-900);
        line-height: 1;
    }

        .hero-stats .stat-number span {
            color: var(--primary);
        }

    .hero-stats .stat-label {
        font-size: 0.85rem;
        color: var(--gray-500);
        margin-top: 4px;
    }

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-block;
    padding: 16px 40px;
    background: var(--primary);
    color: white;
    border-radius: 40px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

    .btn-primary:hover {
        background: var(--primary-dark);
        color: white;
        transform: translateY(-3px);
        box-shadow: 0 8px 30px rgba(10,88,202,0.3);
    }

.btn-outline {
    display: inline-block;
    padding: 16px 40px;
    background: transparent;
    color: var(--gray-800);
    border: 2px solid var(--gray-300);
    border-radius: 40px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

    .btn-outline:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-3px);
        box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    }

@media (max-width: 992px) {
    #hero .row {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-content h1 {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-stats {
        gap: 30px;
    }
}

@media (max-width: 480px) {
    #hero {
        padding: 120px 0 60px;
    }

    .hero-content h1 {
        font-size: 1.6rem;
        letter-spacing: -0.5px;
    }

    .hero-content .subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 16px;
        flex-wrap: wrap;
    }

        .hero-stats .stat-number {
            font-size: 1.3rem;
        }

    .btn-primary,
    .btn-outline {
        padding: 14px 28px;
        font-size: 0.9rem;
        width: 100%;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ============================================
   SECTION TITLE
   ============================================ */
.section-title {
    text-align: center;
    margin-bottom: 48px;
}

    .section-title .label {
        display: inline-block;
        background: var(--primary-light);
        color: var(--primary);
        padding: 4px 16px;
        border-radius: 40px;
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }

    .section-title h2 {
        font-size: 2.4rem;
        font-weight: 700;
        color: var(--gray-900);
        letter-spacing: -0.5px;
        margin-bottom: 12px;
    }

        .section-title h2 span {
            color: var(--primary);
        }

    .section-title .subtitle {
        font-size: 1.05rem;
        color: var(--gray-600);
        max-width: 680px;
        margin: 0 auto;
        line-height: 1.8;
    }

    .section-title .divider {
        width: 60px;
        height: 4px;
        background: var(--primary);
        border-radius: 4px;
        margin: 16px auto 0;
    }

/* ============================================
   ABOUT
   ============================================ */
#about {
    background: var(--white);
}

    #about .row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        max-width: 900px;
        margin: 0 auto;
        text-align: center;
    }

.about-content .label {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: 40px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.about-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

    .about-content h2 span {
        color: var(--primary);
    }

.about-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
    font-size: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

    .about-grid .item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 16px;
        background: var(--gray-50);
        border-radius: 12px;
        font-weight: 500;
        color: var(--gray-800);
        font-size: 0.95rem;
    }

        .about-grid .item i {
            color: var(--primary);
            font-size: 1.1rem;
        }

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .about-content p {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .about-content h2 {
        font-size: 1.8rem;
    }
}

/* ============================================
   SERVICES
   ============================================ */
#services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 16px;
}

.service-card {
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: left;
    transition: var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

    .service-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--primary);
        transform: scaleX(0);
        transition: var(--transition);
    }

    .service-card:hover::before {
        transform: scaleX(1);
    }

    .service-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        border-color: var(--primary-light);
        background: var(--white);
    }

    .service-card .icon {
        font-size: 2.2rem;
        color: var(--primary);
        margin-bottom: 14px;
        display: inline-block;
        background: var(--primary-light);
        padding: 10px;
        border-radius: 12px;
    }

    .service-card h4 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--gray-900);
        margin-bottom: 8px;
    }

    .service-card p {
        color: var(--gray-600);
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .service-card .badge {
        display: inline-block;
        background: var(--primary-light);
        color: var(--primary);
        padding: 4px 14px;
        border-radius: 40px;
        font-size: 0.7rem;
        font-weight: 600;
        margin-top: 12px;
        letter-spacing: 0.3px;
    }

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 24px 20px;
    }
}

/* ============================================
   WHY US
   ============================================ */
#why-us {
    background: var(--gray-50);
}

    #why-us .row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

.why-content .label {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: 40px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.why-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

    .why-content h2 span {
        color: var(--primary);
    }

.why-content > p {
    color: var(--gray-600);
    font-size: 1rem;
    margin-bottom: 32px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.why-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 24px 20px;
    background: var(--white);
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

    .why-item:hover {
        background: var(--primary-light);
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
    }

    .why-item .icon {
        font-size: 2rem;
        color: var(--primary);
        background: var(--white);
        padding: 12px;
        border-radius: 12px;
        box-shadow: var(--shadow-sm);
    }

    .why-item h4 {
        font-size: 1rem;
        font-weight: 600;
        color: var(--gray-900);
    }

    .why-item p {
        font-size: 0.9rem;
        color: var(--gray-600);
        line-height: 1.6;
    }

@media (max-width: 992px) {
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .why-content h2 {
        font-size: 1.8rem;
    }

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

/* ============================================
   CTA
   ============================================ */
#cta {
    background: linear-gradient(135deg, var(--gray-900), var(--secondary));
    padding: 60px 0;
    color: white;
    position: relative;
    overflow: hidden;
}

    #cta::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -10%;
        width: 500px;
        height: 500px;
        background: radial-gradient(circle, rgba(10,88,202,0.1) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }

    #cta .row {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 40px;
        align-items: center;
        position: relative;
        z-index: 1;
    }

    #cta h2 {
        font-size: 2rem;
        font-weight: 700;
        letter-spacing: -0.5px;
    }

    #cta p {
        opacity: 0.85;
        font-size: 1rem;
        margin-top: 8px;
        max-width: 600px;
    }

.cta-btn {
    display: inline-block;
    padding: 16px 44px;
    background: white;
    color: var(--gray-900);
    border-radius: 40px;
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    text-align: center;
}

    .cta-btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 30px rgba(0,0,0,0.2);
        color: var(--gray-900);
    }

@media (max-width: 768px) {
    #cta .row {
        grid-template-columns: 1fr;
        text-align: center;
    }

    #cta p {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    #cta h2 {
        font-size: 1.6rem;
    }

    .cta-btn {
        padding: 14px 32px;
        font-size: 0.9rem;
        width: 100%;
    }
}

/* ============================================
   CONTACT
   ============================================ */
#contact {
    background: var(--gray-50);
}

    #contact .row {
        display: grid;
        grid-template-columns: 1fr 1.5fr;
        gap: 48px;
    }

.contact-info {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

    .contact-info .label {
        display: inline-block;
        background: var(--primary-light);
        color: var(--primary);
        padding: 4px 16px;
        border-radius: 40px;
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }

    .contact-info h3 {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--gray-900);
        margin-bottom: 8px;
    }

    .contact-info > p {
        color: var(--gray-600);
        margin-bottom: 28px;
    }

    .contact-info .item {
        display: flex;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 24px;
    }

        .contact-info .item i {
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 4px;
            background: var(--primary-light);
            padding: 8px;
            border-radius: 10px;
        }

        .contact-info .item h4 {
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: 2px;
            font-size: 0.95rem;
        }

        .contact-info .item p {
            color: var(--gray-600);
            font-size: 0.95rem;
        }

        .contact-info .item a {
            color: var(--gray-600);
        }

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

.contact-form {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

    .contact-form .form-group {
        margin-bottom: 20px;
    }

    .contact-form label {
        display: block;
        font-weight: 500;
        margin-bottom: 6px;
        color: var(--gray-800);
        font-size: 0.95rem;
    }

    .contact-form input,
    .contact-form textarea {
        width: 100%;
        padding: 12px 16px;
        border: 2px solid var(--gray-200);
        border-radius: 12px;
        font-size: 1rem;
        font-family: inherit;
        transition: var(--transition);
        background: var(--gray-50);
    }

        .contact-form input:focus,
        .contact-form textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(10,88,202,0.08);
        }

    .contact-form .row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .contact-form button {
        padding: 14px 40px;
        background: var(--primary);
        color: white;
        border: none;
        border-radius: 40px;
        font-weight: 600;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
        width: 100%;
    }

        .contact-form button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(10,88,202,0.25);
        }

        .contact-form button:disabled {
            opacity: 0.7;
            cursor: not-allowed;
            transform: none;
        }

#formMessages {
    display: none;
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-weight: 500;
    font-size: 0.95rem;
}

    #formMessages.success {
        display: block;
        background: #d4edda;
        color: #155724;
        border: 1px solid #c3e6cb;
    }

    #formMessages.error {
        display: block;
        background: #f8d7da;
        color: #721c24;
        border: 1px solid #f5c6cb;
    }

@media (max-width: 992px) {
    #contact .row {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .contact-info,
    .contact-form {
        padding: 20px;
    }
}

/* ============================================
   FOOTER
   ============================================ */
#footer {
    background: var(--gray-900);
    color: rgba(255,255,255,0.7);
    padding: 40px 0 28px;
}

    #footer .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 16px;
    }

    #footer .copyright {
        font-size: 0.9rem;
    }

        #footer .copyright strong {
            color: white;
        }

    #footer .footer-links {
        display: flex;
        gap: 24px;
        list-style: none;
    }

        #footer .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

            #footer .footer-links a:hover {
                color: white;
            }

@media (max-width: 600px) {
    #footer .container {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

    .back-to-top.visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .back-to-top:hover {
        background: var(--primary-dark);
        color: white;
        transform: translateY(-4px);
    }

/* ============================================
   PRELOADER (deaktiviert - entfernt)
   ============================================ */