/* GLOBAL */
body {
    margin: 0;
    font-family: "Inter", Arial, sans-serif;
    background: #f5f6f7;
    color: #1a1a1a;
    line-height: 1.6;
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #0a1a2a, #12395a);
    color: white;
    padding: 120px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 64px;
    margin: 0;
    letter-spacing: 2px;
}

.tagline {
    font-size: 22px;
    margin-top: 10px;
    opacity: 0.9;
}

.subtagline {
    font-size: 16px;
    margin-top: 20px;
    opacity: 0.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* SECTIONS */
.section {
    padding: 10px 10px;
    max-width: 1100px;
    margin: auto;
}

.section h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

/* GRID */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.grid-item {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* PROCESS */
.process .steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.step {
    background: #0a1a2a;
    color: white;
    padding: 20px;
    border-radius: 8px;
    font-size: 18px;
}

.step span {
    font-weight: bold;
    margin-right: 10px;
}


/* APPLICATIONS */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.app-item {
    background: #12395a;
    color: white;
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    font-size: 18px;
}

/* FOOTER */
.footer {
    background: #0a1a2a;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skill-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.skill-card h3 {
    margin-top: 0;
    font-size: 22px;
    color: #0a1a2a;
}

.skill-card p {
    margin: 10px 0 15px;
    color: #444;
}

.skill-card ul {
    padding-left: 20px;
    margin: 0;
}

.skill-card ul li {
    margin-bottom: 8px;
    color: #222;
}

.skills-summary {
    margin-top: 40px;
    font-size: 16px;
    color: #333;
    max-width: 900px;
}

.impressum-box {
    background: #f7f7f7;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}
.back-link {
    font-weight: bold;
    text-decoration: none;
    border-bottom: 2px solid #000;
}
.back-link:hover {
    opacity: 0.7;
}

.process-vertical {
    max-width: 900px;
    margin: auto;
}

.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
    border-left: 3px solid #ddd;
    padding-left: 2rem;
}

.process-step {
    position: relative;
}

.process-step::before {
    content: "";
    position: absolute;
    left: -2.1rem;
    top: 0.4rem;
    width: 1rem;
    height: 1rem;
    background: #000;
    border-radius: 50%;
}

.step-number {
    font-weight: bold;
    font-size: 1.2rem;
    color: #555;
    display: block;
    margin-bottom: 0.3rem;
}

.process-stairs {
    max-width: 900px;
    margin: auto;
}

.stairs {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.stairs-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.stairs-step:nth-child(odd) {
    margin-left: 0rem;
}

.stairs-step:nth-child(even) {
    margin-left: 3rem;
}

.stairs-step:nth-child(3) {
    margin-left: 6rem;
}

.stairs-step:nth-child(4) {
    margin-left: 9rem;
}

.stairs-step:nth-child(5) {
    margin-left: 12rem;
}

.stairs-step:nth-child(6) {
    margin-left: 15rem;
}

.stairs-number {
    font-size: 1.2rem;
    font-weight: bold;
    background: #000;
    color: #fff;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
}

.stairs-box {
    background: #f7f7f7;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}