/* Material Design Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Material Design Color Palette */
    --md-primary: #3d5afe;
    --md-primary-dark: #0d47a1;
    --md-primary-light: #42a5f5;
    --md-secondary: #424242;
    --md-accent: #c2185b;
    
    /* Surface Colors */
    --md-surface: #ffffff;
    --md-surface-variant: #f5f5f5;
    --md-background: #fafafa;
    
    /* Text Colors */
    --md-on-primary: #ffffff;
    --md-on-surface: rgba(0, 0, 0, 0.87);
    --md-on-surface-variant: rgba(0, 0, 0, 0.72);
    
    /* Primary color with alpha for backgrounds */
    --md-primary-alpha-10: rgba(21, 101, 192, 0.1);
    --md-primary-alpha-08: rgba(21, 101, 192, 0.08);
    
    /* Elevation Shadows (Material Design) */
    --md-elevation-0: none;
    --md-elevation-1: 0px 2px 1px -1px rgba(0, 0, 0, 0.2), 0px 1px 1px 0px rgba(0, 0, 0, 0.14), 0px 1px 3px 0px rgba(0, 0, 0, 0.12);
    --md-elevation-2: 0px 3px 1px -2px rgba(0, 0, 0, 0.2), 0px 2px 2px 0px rgba(0, 0, 0, 0.14), 0px 1px 5px 0px rgba(0, 0, 0, 0.12);
    --md-elevation-4: 0px 2px 4px -1px rgba(0, 0, 0, 0.2), 0px 4px 5px 0px rgba(0, 0, 0, 0.14), 0px 1px 10px 0px rgba(0, 0, 0, 0.12);
    --md-elevation-8: 0px 5px 5px -3px rgba(0, 0, 0, 0.2), 0px 8px 10px 1px rgba(0, 0, 0, 0.14), 0px 3px 14px 2px rgba(0, 0, 0, 0.12);
    --md-elevation-12: 0px 7px 8px -4px rgba(0, 0, 0, 0.2), 0px 12px 17px 2px rgba(0, 0, 0, 0.14), 0px 5px 22px 4px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --md-transition-standard: cubic-bezier(0.4, 0.0, 0.2, 1);
    --md-transition-accelerate: cubic-bezier(0.4, 0.0, 1, 1);
    --md-transition-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.5;
    color: var(--md-on-surface);
    background-color: var(--md-background);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation - Material Design App Bar */
.navbar {
    background: var(--md-surface);
    box-shadow: var(--md-elevation-2);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow 280ms var(--md-transition-standard);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    position: relative;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--md-on-surface);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.00938em;
    transition: color 280ms var(--md-transition-standard);
}

.navbar-brand .material-icons {
    color: var(--md-primary);
    font-size: 28px;
}

.navbar-brand:hover {
    color: var(--md-primary);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--md-on-surface);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 280ms var(--md-transition-standard);
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
}

.navbar-toggle:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

.navbar-toggle .material-icons {
    font-size: 24px;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    margin: 0;
    padding: 0;
    align-items: center;
}

.navbar-menu li {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--md-on-surface);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.08929em;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 280ms var(--md-transition-standard);
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--md-primary-alpha-10);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.nav-link:hover {
    background-color: rgba(0, 0, 0, 0.04);
    color: var(--md-primary);
}

.nav-link:active::before {
    width: 300px;
    height: 300px;
}

.nav-link.active {
    color: var(--md-primary);
    background-color: var(--md-primary-alpha-08);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--md-primary);
}

/* Material Design Header */
.header {
    background: var(--md-primary);
    color: var(--md-on-primary);
    padding: 80px 0 64px;
    text-align: center;
    box-shadow: var(--md-elevation-4);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-primary-dark) 100%);
    opacity: 0.9;
}

.header .container {
    position: relative;
    z-index: 1;
}

.header-title {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 400;
    margin-bottom: 16px;
    letter-spacing: -0.01562em;
    line-height: 1.2;
}

.header-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.25rem);
    font-weight: 400;
    opacity: 1;
    letter-spacing: 0.00938em;
}

/* Main Content */
.main-content {
    padding: 48px 0;
    background: var(--md-background);
}

.content-section {
    margin-bottom: 100px;
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.125rem);
    color: var(--md-on-surface);
    margin-bottom: 24px;
    font-weight: 400;
    letter-spacing: 0.00735em;
}

/* Material Card Base */
.material-card {
    background: var(--md-surface);
    border-radius: 4px;
    box-shadow: var(--md-elevation-2);
    transition: box-shadow 280ms var(--md-transition-standard);
    position: relative;
    overflow: hidden;
}

.material-card:hover {
    box-shadow: var(--md-elevation-8);
}

.material-card:active {
    box-shadow: var(--md-elevation-4);
}

/* Ripple Effect */
.material-card {
    position: relative;
    overflow: hidden;
}

.material-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.material-card:active::after {
    width: 300px;
    height: 300px;
}

/* Hero Section */
.hero-section {
    margin-bottom: 48px;
}

.hero-image-wrapper {
    border-radius: 4px;
    overflow: hidden;
    box-shadow: var(--md-elevation-8);
    max-width: 800px;
    margin: 0 auto;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Technologies */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--md-surface);
    color: var(--md-primary);
    border: none;
    border-radius: 16px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01071em;
    box-shadow: var(--md-elevation-1);
    transition: all 280ms var(--md-transition-standard);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tech-tag::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--md-primary);
    opacity: 0.1;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.tech-tag:hover {
    box-shadow: var(--md-elevation-4);
    transform: translateY(-2px);
}

.tech-tag:active::before {
    width: 300px;
    height: 300px;
}

.tech-tag:active {
    background: var(--md-primary);
    color: var(--md-on-primary);
}

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

.solution-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-height: 200px;
}

.solution-icon {
    font-size: 48px;
    color: var(--md-primary);
    margin-bottom: 16px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-title {
    font-size: 1.25rem;
    color: var(--md-on-surface);
    margin-bottom: 8px;
    font-weight: 500;
    letter-spacing: 0.00938em;
}

.solution-text {
    color: var(--md-on-surface-variant);
    line-height: 1.5;
    font-size: 0.875rem;
    letter-spacing: 0.01071em;
    flex: 1;
}

/* Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 16px;
}

.testimonial-card {
    padding: 24px;
    border-left: 4px solid var(--md-primary);
}

.testimonial-text {
    color: var(--md-on-surface);
    margin-bottom: 16px;
    font-style: italic;
    line-height: 1.75;
    font-size: 0.9375rem;
    letter-spacing: 0.00938em;
}

.testimonial-author {
    color: var(--md-primary);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.01071em;
    margin-top: 8px;
}
.testimonial-jahr {
    color: var(--md-primary);
    font-weight: 500;
    font-size: 1.5rem;
    letter-spacing: 0.01071em;
    margin-bottom: 18px;
}

/* Contact */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

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

.contact-item .material-icons {
    color: var(--md-primary);
    font-size: 24px;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.contact-label {
    font-weight: 500;
    color: var(--md-on-surface-variant);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08333em;
}

.contact-link {
    color: var(--md-primary);
    text-decoration: none;
    transition: color 280ms var(--md-transition-standard);
    font-size: 0.9375rem;
    letter-spacing: 0.00938em;
}

.contact-link:hover {
    color: var(--md-primary-dark);
    text-decoration: underline;
}

.contact-text {
    color: var(--md-on-surface);
    font-size: 0.9375rem;
    letter-spacing: 0.00938em;
}

/* Social Links - Material Buttons */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 0, 0, 0.12);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    background: var(--md-primary);
    color: var(--md-on-primary);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.08929em;
    text-transform: uppercase;
    box-shadow: var(--md-elevation-2);
    transition: all 280ms var(--md-transition-standard);
    position: relative;
    overflow: hidden;
    min-width: 64px;
    height: 36px;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.social-link:hover {
    box-shadow: var(--md-elevation-4);
    background: var(--md-primary-dark);
}

.social-link:active::before {
    width: 300px;
    height: 300px;
}

.social-link:active {
    box-shadow: var(--md-elevation-1);
}

/* Footer */
.footer {
    background: var(--md-surface);
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.12);
    margin-top: 64px;
    box-shadow: var(--md-elevation-1);
}

.footer-link {
    color: var(--md-on-surface-variant);
    text-decoration: none;
    transition: color 280ms var(--md-transition-standard);
    font-size: 0.875rem;
    letter-spacing: 0.01071em;
}

.footer-link:hover {
    color: var(--md-primary);
    text-decoration: underline;
}

/* Material Icons */
.material-icons {
    font-family: 'Material Icons';
    font-weight: normal;
    font-style: normal;
    font-size: 24px;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }

    .navbar-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--md-surface);
        flex-direction: column;
        align-items: stretch;
        box-shadow: var(--md-elevation-8);
        max-height: 0;
        overflow: hidden;
        transition: max-height 300ms var(--md-transition-standard);
        gap: 0;
    }

    .navbar-menu.active {
        max-height: 500px;
    }

    .navbar-menu li {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        padding: 16px 24px;
        border-radius: 0;
        justify-content: flex-start;
    }

    .nav-link.active::after {
        left: 0;
        right: auto;
        width: 4px;
        height: 100%;
        bottom: 0;
    }

    .header {
        padding: 64px 0 48px;
    }

    .main-content {
        padding: 32px 0;
    }

    .content-section {
        margin-bottom: 40px;
    }

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

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

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

    .social-links {
        flex-direction: column;
        align-items: stretch;
    }

    .social-link {
        width: 100%;
    }

    .tech-grid {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .navbar-brand span:not(.material-icons) {
        display: none;
    }

    .navbar-brand .material-icons {
        margin: 0;
    }

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

    .header-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .solution-card,
    .testimonial-card,
    .contact-item {
        padding: 16px;
    }

    .solution-icon {
        font-size: 40px;
        width: 40px;
        height: 40px;
    }
}

/* Print Styles */
@media print {
    .header {
        background: var(--md-primary);
        box-shadow: none;
    }

    .material-card {
        box-shadow: none;
        border: 1px solid rgba(0, 0, 0, 0.12);
    }

    .social-links,
    .footer {
        display: none;
    }
}