:root {
    --bg: #FAFAFA;
    --bg-alt: #F0F0F0;
    --text: #1A1A1A;
    --text-secondary: #5A5A5A;
    --accent: #0066CC;
    --accent-hover: #0052A3;
    --border: #D4D4D4;
    --mono: 'IBM Plex Mono', monospace;
    --sans: 'IBM Plex Sans', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
}

.logo {
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text);
    text-decoration: none;
    text-align: center;
    justify-self: center;
}

.back-link {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    justify-self: start;
}

.back-link:hover {
    color: var(--text);
}

.header-spacer {
    /* Platzhalter für symmetrisches Layout */
}

/* Hero */
.hero {
    padding: 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 600px;
    width: 100%;
}

.hero-visual {
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 60px;
    position: relative;
    overflow: hidden;
}

.hero-visual::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: var(--border);
}

.hero-image {
    max-width: 100%;
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.12));
}

.hero-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px 60px;
    max-width: none;
}

.hero-brand {
    font-family: var(--mono);
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.hero h1 {
    font-family: var(--mono);
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
    color: var(--text);
    line-height: 1.2;
    margin-top: 0;
}

.hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.hero-sub:last-of-type {
    margin-bottom: 40px;
}

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

.btn-primary {
    display: inline-block;
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    padding: 14px 28px;
    background: var(--accent);
    color: #ffffff;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    align-self: flex-start;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

/* Tablet Section */
.tablet-section {
    padding: 56px 0;
}

.tablet-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.tablet-image-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tablet-image-wrapper .image-placeholder {
    margin-top: 0;
    aspect-ratio: 3 / 4;
    max-width: 400px;
    width: 100%;
}

.tablet-text {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tablet-text-line {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    margin: 0;
}

/* References */
.references {
    padding: 32px 0;
    border-bottom: 1px solid var(--border);
}

.references-label {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.references-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: center;
}

.logo-placeholder {
    height: 32px;
    padding: 0 16px;
    background: var(--bg-alt);
    border: 1px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-placeholder span {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-secondary);
}

/* Image Placeholders */
.image-placeholder {
    margin-top: 32px;
    background: var(--bg-alt);
    border: 1px dashed var(--border);
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Images */
.section-image {
    margin-top: 32px;
    max-width: 100%;
    height: auto;
    display: block;
}

.placeholder-inner {
    text-align: center;
    padding: 24px;
}

.placeholder-label {
    display: block;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.placeholder-desc {
    display: block;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-secondary);
    max-width: 320px;
}

/* Sections */
section {
    padding: 56px 0;
    border-bottom: 1px solid var(--border);
}

section:last-of-type {
    border-bottom: none;
}

.section-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.section-body {
    font-size: 16px;
    color: var(--text);
    line-height: 1.75;
}

.section-body p + p {
    margin-top: 16px;
}

/* Capabilities List */
.capabilities-list {
    list-style: none;
}

.capabilities-list li {
    font-family: var(--mono);
    font-size: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.capabilities-list li:last-child {
    border-bottom: none;
}

.capabilities-list li::before {
    content: "→";
    margin-right: 12px;
    color: var(--text-secondary);
}

/* Use Cases Grid */
.use-cases {
    display: grid;
    gap: 1px;
    background: var(--border);
    margin-top: 24px;
}

.use-case {
    background: var(--bg);
    padding: 24px;
}

.use-case-title {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.use-case-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Boundaries List */
.boundaries-list {
    list-style: none;
}

.boundaries-list li {
    font-size: 14px;
    padding: 10px 0;
    color: var(--text-secondary);
    border-bottom: 1px dashed var(--border);
}

.boundaries-list li:last-child {
    border-bottom: none;
}

/* FAQ List */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.faq-item {
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.faq-question {
    font-family: var(--mono);
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.5;
}

.faq-answer {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Maturity Block */
.maturity-block {
    background: var(--bg-alt);
    padding: 24px;
    font-size: 15px;
    line-height: 1.7;
}

.maturity-block p + p {
    margin-top: 12px;
}

/* Tech Grid */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border);
    margin-top: 16px;
}

.tech-item {
    background: var(--bg);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tech-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.tech-value {
    font-size: 14px;
    color: var(--text);
}

.tech-note {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 12px;
}

/* Contact Section */
.contact-section {
    padding-bottom: 80px;
}

.contact-body {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.contact-email {
    font-family: var(--mono);
    font-size: 14px;
    margin-top: 20px;
    color: var(--text-secondary);
}

.contact-email a {
    color: var(--text);
    text-decoration: none;
}

.contact-email a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

.footer-links a {
    color: var(--text-secondary);
    margin: 0 1rem;
    transition: color 0.2s;
    text-decoration: none;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--text);
}

.footer-links a>i {
    color: var(--accent);
    margin-right: 0.5rem;
    width: 16px;
    text-align: center;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-split {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .hero-visual {
        padding: 60px 40px;
        min-height: 400px;
    }

    .hero-visual::before {
        display: none;
    }

    .hero-copy {
        padding: 60px 40px;
        max-width: none;
    }
}

@media (max-width: 900px) {
    .tablet-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .tablet-image-wrapper {
        order: -1;
    }
}

@media (max-width: 600px) {
    .hero-visual {
        padding: 40px 24px;
        min-height: 300px;
    }

    .hero-copy {
        padding: 40px 24px;
    }

    .tablet-text-line {
        font-size: 16px;
    }

    section {
        padding: 40px 0;
    }

    .use-cases {
        display: block;
        background: transparent;
    }

    .use-case {
        border-bottom: 1px solid var(--border);
        padding: 20px 0;
    }

    .use-case:last-child {
        border-bottom: none;
    }

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

    table {
        font-size: 14px;
    }

    table th,
    table td {
        padding: 8px;
    }
}

/* Comparison Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}

table th {
    text-align: left;
    padding: 12px;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
}

table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

table tr:last-child td {
    border-bottom: none;
}

table tbody tr:hover {
    background-color: var(--bg-alt);
}