/* ==========================================
   NICOLE RATHGEBER - PORTFOLIO WEBSITE
   Clean White/Blue Design
   ========================================== */

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

:root {
    --primary-blue: #0066cc;
    --secondary-blue: #0052a3;
    --light-blue: #e6f2ff;
    --bg-white: #ffffff;
    --bg-gray: #f8f9fa;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.7;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==========================================
   HEADER NAVIGATION
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    color: var(--text-dark);
}

.logo-image {
    height: 50px;
    width: auto;
    display: block;
}

.logo-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-blue);
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    border-radius: 5px;
}

.logo-text {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    font-weight: 500;
}

.nav {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

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

.language-switcher {
    display: flex;
    gap: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    padding: 0.3rem;
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 20px;
    transition: all 0.3s ease;
    color: var(--text-gray);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%);
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 5rem;
    align-items: center;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.hero-title span:first-child {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.hero-title .name {
    color: var(--primary-blue);
}

.typewriter-container {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2rem;
    min-height: 60px;
}

.typewriter {
    color: var(--primary-blue);
}

.cursor {
    color: var(--primary-blue);
    animation: blink 0.7s infinite;
    font-weight: 300;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
    border: 2px solid var(--primary-blue);
}

.btn-primary:hover {
    background: var(--secondary-blue);
    border-color: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

.hero-image {
    animation: fadeInRight 0.8s ease-out 0.2s backwards;
}

.image-frame {
    position: relative;
    width: 100%;
    max-width: 500px;
    height: 600px;
    margin-left: auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.image-decoration {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 150px;
    height: 150px;
    border: 3px solid var(--primary-blue);
    border-radius: 20px;
    z-index: -1;
}

/* ==========================================
   SECTIONS
   ========================================== */
.section {
    padding: 6rem 0;
}

.section-header {
    margin-bottom: 4rem;
}

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

.section-label {
    display: inline-block;
    color: var(--primary-blue);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about-section {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

.quote {
    margin-top: 2.5rem;
    padding: 2rem;
    background: var(--light-blue);
    border-left: 4px solid var(--primary-blue);
    border-radius: 8px;
}

.quote p {
    font-size: 1.3rem;
    font-style: italic;
    font-weight: 500;
    color: var(--primary-blue);
    margin: 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-gray);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================
   EXPERTISE SECTION
   ========================================== */
.expertise-section {
    background: var(--bg-gray);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.expertise-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.card-icon {
    color: var(--primary-blue);
    margin-bottom: 2rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.card-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-gray);
}

/* ==========================================
   PROFILE SECTION
   ========================================== */
.profile-section {
    background: var(--bg-white);
}

.profile-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.profile-main h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.competencies-list {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.competencies-list li {
    padding: 1.2rem 1.5rem;
    background: var(--bg-gray);
    border-left: 4px solid var(--primary-blue);
    border-radius: 8px;
    color: var(--text-gray);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.competencies-list li:hover {
    background: var(--light-blue);
    transform: translateX(10px);
}

.profile-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: 12px;
}

.info-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-blue);
}

.info-card ul {
    list-style: none;
}

.info-card li {
    padding: 0.8rem 0;
    color: var(--text-gray);
    padding-left: 1.5rem;
    position: relative;
}

.info-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* ==========================================
   CERTIFICATIONS SECTION
   ========================================== */
.certifications-section {
    background: var(--bg-white);
}

.section-description {
    max-width: 700px;
    margin: 1rem auto 0;
    color: var(--text-gray);
    font-size: 1.1rem;
    line-height: 1.6;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.certification-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    border: 2px solid #e8e8e8;
    transition: all 0.3s ease;
}

.certification-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.1);
    transform: translateY(-5px);
}

.certification-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--bg-white) 100%);
    border: 2px solid var(--primary-blue);
    padding: 3rem;
}

.cert-badge {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-blue);
    border-radius: 50%;
    color: white;
}

.cert-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
}

.certification-card h3 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    text-align: center;
}

.certification-card h4 {
    font-size: 1.2rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 500;
}

.certification-card p {
    color: var(--text-gray);
    line-height: 1.7;
    text-align: center;
}

.cert-description {
    font-size: 1.05rem;
    margin: 1.5rem 0;
}

.cert-meta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.cert-tag {
    padding: 0.5rem 1rem;
    background: var(--bg-gray);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-gray);
    font-weight: 500;
}

.cert-tag.elite {
    background: var(--primary-blue);
    color: white;
}

/* ==========================================
   DOWNLOADS SECTION
   ========================================== */
.downloads-section {
    background: var(--bg-gray);
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.download-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.download-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
}

.download-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.download-card p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: var(--primary-blue);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

.btn-download svg {
    width: 20px;
    height: 20px;
}

/* ==========================================
   FAQ SECTION
   ========================================== */
.faq-section {
    background: var(--bg-white);
}

.faq-container {
    max-width: 900px;
    margin: 3rem auto 0;
}

.faq-item {
    background: var(--bg-white);
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-blue);
}

.faq-item.active {
    border-color: var(--primary-blue);
    box-shadow: 0 5px 20px rgba(0, 102, 204, 0.1);
}

.faq-question {
    padding: 1.8rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin: 0;
    font-weight: 600;
}

.faq-toggle {
    font-size: 2rem;
    color: var(--primary-blue);
    font-weight: 300;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 2rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.8rem 2rem;
}

.faq-answer p {
    color: var(--text-gray);
    line-height: 1.8;
    margin: 0;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact-section {
    background: var(--bg-gray);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.contact-icon {
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

.contact-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.contact-card a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-card a:hover {
    color: var(--secondary-blue);
    text-decoration: underline;
}

.contact-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.footer-logo .logo-image {
    height: 45px;
    width: auto;
    /* Logo wird ohne Filter angezeigt - funktioniert besser mit transparentem Hintergrund */
    opacity: 0.85;
    mix-blend-mode: screen;
}

.footer-logo .logo-icon {
    background: var(--primary-blue);
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: rgba(255, 255, 255, 1);
}

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-image {
        order: -1;
    }

    .image-frame {
        max-width: 400px;
        height: 500px;
        margin: 0 auto;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .profile-content {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 75px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 75px);
        background: var(--bg-white);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s ease;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .nav.active {
        left: 0;
    }

    .nav-menu {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }

    .nav-link {
        font-size: 1.1rem;
    }

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

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

    .typewriter-container {
        font-size: 1.5rem;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 1rem;
    }

    .logo-image {
        height: 40px;
    }

    .logo-text {
        font-size: 0.75rem;
    }

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

    .typewriter-container {
        font-size: 1.2rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}