/* --- Harvard-Inspired Premium MedTech Style --- */
:root {
    --primary-crimson: #8c1d40;
    --accent-crimson: #a51c30;
    --gold-primary: #c5a059;
    --gold-light: #d4af37;
    --dark-bg: #0f141c;
    --secondary-dark: #1a202c;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --light-card: #f8fafc;
    --white: #ffffff;
    --border-gold: rgba(197, 160, 89, 0.3);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    color: var(--text-light);
    background-color: var(--dark-bg);
    line-height: 1.6;
}

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

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

ul {
    list-style: none;
}

/* Edler CTA Button */
.btn {
    display: inline-block;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent-crimson) 0%, var(--primary-crimson) 100%);
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    border: 1px solid var(--gold-primary);
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(140, 29, 64, 0.3);
    transition: var(--transition);
}

.btn:hover {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
    color: var(--dark-bg);
    border-color: var(--white);
    box-shadow: 0 6px 20px rgba(197, 160, 89, 0.4);
    transform: translateY(-2px);
}

h1, h2, h3 {
    color: var(--white);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* --- Header & Navigation --- */
header {
    background-color: rgba(15, 20, 28, 0.92);
    backdrop-filter: blur(10px);
    padding: 16px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-gold);
}

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

header nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.logo img {
    height: 150px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.nav-links a:hover {
    color: var(--gold-primary);
}

/* Sprachwechsler Style */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--border-gold);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.lang-btn.active, .lang-btn:hover {
    color: var(--gold-primary);
}

.lang-divider {
    color: var(--border-gold);
    font-size: 0.8rem;
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 2px;
    background-color: var(--gold-primary);
    margin: 6px;
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    padding: 180px 0 120px;
    position: relative;
    background: radial-gradient(circle at 70% 30%, var(--secondary-dark) 0%, var(--dark-bg) 70%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
}

.hero-text h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.15rem;
    margin-bottom: 36px;
    color: var(--text-muted);
    max-width: 580px;
}

.hero-image img {
    width: 100%;
    max-width: 480px;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(140, 29, 64, 0.25));
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 60px;
}

.hero-wave .shape-fill {
    fill: var(--light-card);
}

/* --- Services Section --- */
.services {
    padding: 100px 0;
    background-color: var(--light-card);
    color: var(--dark-bg);
}

.services h2 {
    text-align: center;
    color: var(--dark-bg);
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.services-subtitle {
    text-align: center;
    color: #64748B;
    margin-bottom: 60px;
    font-size: 1.05rem;
}

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

.service-card {
    background-color: var(--white);
    padding: 48px 40px;
    border-radius: 8px;
    border-top: 4px solid var(--primary-crimson);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(140, 29, 64, 0.12);
    border-top-color: var(--gold-primary);
}

.service-card img {
    height: 70px;
    width: 70px;
    margin-bottom: 24px;
}

.service-card h3 {
    color: var(--dark-bg);
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.service-card p {
    color: #475569;
    font-size: 1rem;
    line-height: 1.7;
}

/* --- R&D Section --- */
.rd {
    padding: 100px 0;
    background-color: var(--secondary-dark);
    border-top: 1px solid var(--border-gold);
    border-bottom: 1px solid var(--border-gold);
}

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

.rd-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.rd-text h2 span {
    color: var(--gold-primary);
}

.rd-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* --- Contact Section --- */
.contact {
    padding: 100px 0;
    background-color: var(--white);
    color: var(--dark-bg);
    text-align: center;
}

.contact h2 {
    color: var(--dark-bg);
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.contact p {
    margin-bottom: 48px;
    color: #64748B;
}

#contact-form {
    max-width: 580px;
    margin: 0 auto;
    text-align: left;
}

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

#contact-form input,
#contact-form textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid #CBD5E1;
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 1rem;
    background-color: #F8FAFC;
    transition: var(--transition);
}

#contact-form input:focus,
#contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-crimson);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(140, 29, 64, 0.1);
}

#contact-form button {
    width: 100%;
}

/* --- Footer --- */
footer {
    padding: 40px 0;
    background-color: var(--dark-bg);
    color: var(--text-muted);
    text-align: center;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-gold);
}

footer a {
    margin: 0 8px;
    color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero-text h1 { font-size: 2.2rem; }
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-text p { margin: 0 auto 36px; }
    .hero-image img { margin: 0 auto; }
}

@media (max-width: 768px) {
    .services-grid { grid-template-columns: 1fr; }
    .nav-links {
        position: absolute;
        right: 0;
        top: 70px;
        background-color: var(--dark-bg);
        border-bottom: 1px solid var(--border-gold);
        flex-direction: column;
        width: 100%;
        padding: 30px 0;
        transform: translateY(-150%);
        transition: transform 0.4s ease;
    }
    .nav-active { transform: translateY(0); }
    .burger { display: block; }
}