:root {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.92);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: rgba(37, 99, 235, 0.08);
    --border-color: rgba(15, 23, 42, 0.08);
    --button-bg: #2563eb;
    --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 12px 32px -4px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 20px 45px -10px rgba(15, 23, 42, 0.1);
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2f6 50%, #e2e8f0 100%);
    position: relative;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Subtle background decoration */
body::before {
    content: '';
    position: fixed;
    top: -15%;
    left: -10%;
    width: 55%;
    height: 55%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.09) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -15%;
    right: -10%;
    width: 55%;
    height: 55%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.07) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

/* --- Header & Navigation --- */
.main-header {
    width: 100%;
    margin: 0 auto;
    padding: 14px 0;
    background-color: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 15px rgba(15, 23, 42, 0.03);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: opacity 0.2s ease;
}

.brand-link:hover {
    opacity: 0.9;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent) 0%, #1e40af 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    flex-shrink: 0;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.site-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.site-subtitle {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 999px;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.main-nav a:hover {
    color: var(--accent);
    background-color: var(--accent-light);
}

.main-nav a.active {
    color: var(--accent);
    background-color: rgba(37, 99, 235, 0.12);
    font-weight: 600;
}

.main-nav a.nav-cta {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    margin-left: 6px;
}

.main-nav a.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    color: #ffffff;
}

/* --- Main Layout Container --- */
.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: 40px auto 50px auto;
    z-index: 1;
    padding: 0 24px;
    gap: 32px;
}

/* --- Generic Modern Card --- */
.card {
    background-color: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* --- Hero Section (Startseite) --- */
.hero-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    align-items: center;
    padding: 40px 32px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 250, 252, 0.92) 100%);
}

@media (min-width: 900px) {
    .hero-card {
        grid-template-columns: 1.45fr 1fr;
        padding: 52px 56px;
        gap: 48px;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--accent-light);
    color: var(--accent);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 18px;
    width: fit-content;
}

.hero-title {
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.4px;
}

.hero-title span {
    color: var(--accent);
    font-size: 0.85em;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.05rem;
        white-space: nowrap;
    }
}

.hero-text p {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: left;
}

.hero-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}

.btn-primary, .contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: #ffffff;
    text-decoration: none;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.98rem;
    transition: all 0.25s ease;
    box-shadow: 0 8px 20px -6px rgba(37, 99, 235, 0.5);
    border: none;
    cursor: pointer;
}

.btn-primary:hover, .contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px -6px rgba(37, 99, 235, 0.65);
    color: #ffffff;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 26px;
    background: #ffffff;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.98rem;
    border: 1px solid rgba(15, 23, 42, 0.15);
    transition: all 0.25s ease;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.profile-image-container {
    width: 100%;
    max-width: 300px;
    border-radius: 20px;
    overflow: hidden;
    border: 4px solid #ffffff;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    position: relative;
    background-color: #f8fafc;
}

.profile-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.profile-image-container:hover .profile-image {
    transform: scale(1.04);
}

.profile-caption {
    margin-top: 14px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* --- Feature Highlights (3 Columns) --- */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 28px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--accent-light);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.96rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Skills & Fehmarn Banner Section --- */
.info-split-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 900px) {
    .info-split-grid {
        grid-template-columns: 1.3fr 1fr;
    }
}

.section-heading {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-sub {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.skills-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-list li {
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, 0.12);
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.25s ease;
    overflow: hidden;
}

.skills-list li span.skill-plain,
.skills-list li a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    color: inherit;
    text-decoration: none;
}

.skills-list li:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.25);
}

.fehmarn-card {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.07) 0%, rgba(14, 165, 233, 0.12) 100%);
    border: 1px solid rgba(37, 99, 235, 0.2);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* --- Contact & Business Card (Visitenkarte) Section --- */
.contact-grid-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
}

@media (min-width: 900px) {
    .contact-grid-card {
        grid-template-columns: 1fr 1.15fr;
        gap: 48px;
    }
}

.visitenkarte-showcase {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.visitenkarte-img-wrapper {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.14);
    border: 1px solid rgba(15, 23, 42, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    background: #ffffff;
}

.visitenkarte-img-wrapper:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 22px 45px rgba(37, 99, 235, 0.18);
}

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

.contact-quick-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
}

.contact-quick-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.contact-quick-item:hover {
    border-color: var(--accent);
    background: var(--accent-light);
    color: var(--accent);
}

.contact-quick-item svg {
    color: var(--accent);
    flex-shrink: 0;
}

/* --- Contact Form --- */
.inline-contact-form {
    width: 100%;
    text-align: left;
}

.form-submit-btn {
    width: 100%;
}

.form-group {
    margin-bottom: 18px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    background-color: #f8fafc;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* --- Page Header Banner (Links & Subpages) --- */
.page-header-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 32px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.page-header-card h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-header-card p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* --- Footer --- */
.site-footer {
    width: 100%;
    text-align: center;
    padding: 28px 20px;
    margin-top: auto;
    color: var(--text-secondary);
    font-size: 0.92rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-top: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
}

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

/* --- Modals --- */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(15, 23, 42, 0.65);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    backdrop-filter: blur(6px);
    transition: opacity 0.3s ease;
}

.modal-content {
    background-color: #ffffff;
    border-radius: 20px;
    width: 100%;
    max-width: 620px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    border: 1px solid var(--border-color);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 22px;
    font-size: 1.75rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
    background: none;
    border: none;
    font-family: inherit;
    padding: 4px;
}

.modal-close:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}

.modal-header {
    padding: 28px 32px 20px 32px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.65rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.modal-body {
    padding: 28px 32px;
    line-height: 1.65;
}

.modal-section-title {
    margin-top: 20px;
    margin-bottom: 10px;
    padding-bottom: 4px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.modal-section-title:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: 14px;
    color: var(--text-secondary);
}

.link-arrow {
    color: var(--accent);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.link-arrow:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* --- Subtle Scroll Reveal Animation --- */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}