/* ===== Globale Styles & Glasmorphism ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --secondary: #764ba2;
    --accent: #f093fb;
    --text-dark: #1a202c;
    --text-light: #718096;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ===== Animated Background ===== */
.background {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.shape:nth-child(1) {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    top: -10%;
    left: -10%;
    animation-delay: 0s;
}

.shape:nth-child(2) {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #f093fb, #667eea);
    bottom: -10%;
    right: -10%;
    animation-delay: 5s;
}

.shape:nth-child(3) {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #764ba2, #f093fb);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 30px) scale(0.9);
    }
}

/* ===== Glasmorphism Cards ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    transition: var(--transition);
}

.glass-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* ===== Navigation ===== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    font-size: 2rem;
    animation: rotate 3s infinite ease-in-out;
}

@keyframes rotate {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(10deg); }
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ===== Hero Section ===== */
.hero {
    padding: 6rem 2rem 4rem;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
    width: 100%;
    animation: fadeInUp 1s ease;
}

.hero-card {
    padding: 3rem;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: -1px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-weight: 300;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: white;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: 15px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.95);
}

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

/* ===== Container & Sections ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.section-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== Projects Grid ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    text-decoration: none;
    color: inherit;
    display: block;
    animation: fadeInUp 0.6s ease both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }

.project-card .glass-card {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card:hover .glass-card {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 15px 50px rgba(31, 38, 135, 0.3);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.project-card p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    flex-grow: 1;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.tag {
    padding: 0.4rem 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.card-arrow {
    display: flex;
    justify-content: flex-end;
    color: white;
    opacity: 0.7;
    transition: var(--transition);
}

.project-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(5px);
}

/* ===== Advertising Section ===== */
.advertising {
    padding: 4rem 0;
}

.advertising-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.ad-card {
    text-decoration: none;
    color: inherit;
    display: block;
}

.ad-glass {
    padding: 0;
    overflow: hidden;
    height: 350px;
    display: flex;
    flex-direction: column;
}

.ad-card:hover .ad-glass {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 15px 50px rgba(31, 38, 135, 0.3);
}

.ad-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.ad-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.ad-card:hover .ad-image img {
    transform: scale(1.1);
}

.ad-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.ad-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.ad-content p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.ad-social {
    display: flex;
    gap: 0.8rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.social-link:hover {
    background: white;
    color: #e1306c;
    transform: scale(1.1);
}

/* ===== Feedback Section ===== */
.feedback-section {
    padding: 4rem 0;
}

.feedback-card {
    padding: 3rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.feedback-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feedback-card h2 {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.feedback-card p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
}

.feedback-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    background: white;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: 15px;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feedback-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ===== Footer ===== */
.footer {
    padding: 2rem 0;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
    color: white;
}

.footer-content p {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: inline-block;
    transition: var(--transition);
}

.footer-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 1rem 3rem;
        min-height: 60vh;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-card {
        padding: 2rem;
    }

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

    .nav-content {
        padding: 0 1rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .logo h1 {
        font-size: 1.2rem;
    }

    .projects-grid,
    .advertising-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .shape {
        filter: blur(60px);
    }
}

@media (max-width: 480px) {
    .hero-card {
        padding: 1.5rem;
    }

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

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

    .section-title {
        font-size: 1.6rem;
    }

    .cta-button,
    .feedback-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .nav-content {
        flex-direction: column;
        gap: 1rem;
    }

    .container {
        padding: 0 1rem;
    }
}