/* =========================================================
   Jonas Studios — Design-Tokens & Basis-Styles
   Premium Dark Mode: dunkel, technisch, minimalistisch
   ========================================================= */

:root {
    --color-bg: #08090d;
    --color-surface: #101218;
    --color-surface-2: #151821;
    --color-surface-3: #1b1f2a;
    --color-text: #f5f7fa;
    --color-muted: #9ca3af;
    --color-border: #232733;
    --color-accent: #5b8def;
    --color-accent-strong: #7ba3f5;
    --color-accent-contrast: #08090d;
    --color-success: #3ddc97;
    --color-error: #f0576b;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.03) inset,
        0 8px 24px rgba(0, 0, 0, 0.35);

    --container-width: 1160px;
    --transition-fast: 150ms ease;
    --transition-base: 220ms ease;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    margin: 0 0 0.5em;
    font-weight: 600;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; }

p {
    margin: 0 0 1em;
    color: var(--color-muted);
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Accessibility ---------- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--color-accent);
    color: var(--color-accent-contrast);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 16px;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast),
        transform var(--transition-fast);
    min-height: 44px;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-accent-contrast);
}

.btn-primary:hover {
    background: var(--color-accent-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-sm {
    padding: 9px 16px;
    font-size: 0.875rem;
    min-height: 38px;
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(8, 9, 13, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 700;
}

.main-nav ul {
    display: flex;
    gap: 32px;
}

.main-nav a {
    color: var(--color-muted);
    font-size: 0.92rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.main-nav a:hover {
    color: var(--color-text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.nav-toggle-bar {
    width: 18px;
    height: 2px;
    background: var(--color-text);
    margin: 0 auto;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
    display: none;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.mobile-nav.is-open {
    display: block;
}

.mobile-nav ul {
    padding: 16px 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav a {
    display: block;
    padding: 12px 4px;
    color: var(--color-text);
    font-weight: 500;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav li:last-child a {
    border-bottom: none;
    margin-top: 8px;
}

/* ---------- Hero ---------- */
.hero {
    padding: 96px 0 72px;
}

.hero-inner {
    max-width: 760px;
}

.eyebrow {
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-lead {
    font-size: 1.1rem;
    max-width: 560px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---------- Trust section ---------- */
.trust-section {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 48px 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.trust-item h2 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.trust-item p {
    font-size: 0.9rem;
    margin: 0;
}

/* ---------- Sections ---------- */
.section {
    padding: 88px 0;
}

.section-alt {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-heading {
    max-width: 620px;
    margin-bottom: 48px;
}

.section-footer {
    margin-top: 40px;
}

.page-header {
    padding: 72px 0 48px;
    border-bottom: 1px solid var(--color-border);
}

.page-lead {
    max-width: 560px;
    font-size: 1.05rem;
}

/* ---------- Cards ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

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

.card h2, .card h3 {
    margin-bottom: 10px;
}

.card p {
    margin: 0;
    font-size: 0.92rem;
}

.project-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.project-category {
    color: var(--color-accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.project-tech {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-top: 12px;
    margin-bottom: 0;
}

.badge {
    background: var(--color-surface-3);
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 999px;
    white-space: nowrap;
}

/* ---------- Empty state ---------- */
.empty-state {
    max-width: 520px;
    padding: 48px;
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
}

.empty-state h2 {
    margin-bottom: 12px;
}

/* ---------- Process list ---------- */
.process-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.process-step {
    display: flex;
    gap: 16px;
}

.process-number {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 32px;
}

.process-step h3 {
    margin-bottom: 6px;
}

.process-step p {
    font-size: 0.9rem;
    margin: 0;
}

/* ---------- About ---------- */
.about-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.about-block {
    padding: 28px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.about-block p {
    margin: 0;
    font-size: 0.95rem;
}

/* ---------- CTA ---------- */
.cta-section {
    padding: 88px 0;
}

.cta-inner {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}

.cta-inner p {
    margin-bottom: 28px;
}

.link-arrow {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ---------- Forms ---------- */
.form-section {
    max-width: 760px;
}

.form-alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 0.92rem;
}

.form-alert-error {
    background: rgba(240, 87, 107, 0.1);
    border: 1px solid var(--color-error);
    color: #ffb4bf;
}

.contact-form .form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.form-field-wide {
    grid-column: 1 / -1;
}

.form-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field select,
.form-field textarea {
    width: 100%;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    padding: 12px 14px;
    font-size: 0.95rem;
    font-family: inherit;
    min-height: 44px;
    transition: border-color var(--transition-fast);
}

.form-field textarea {
    min-height: unset;
    resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--color-accent);
}

.form-field input[aria-invalid="true"],
.form-field select[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
    border-color: var(--color-error);
}

.field-error {
    color: var(--color-error);
    font-size: 0.82rem;
    margin: 6px 0 0;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.form-checkbox input {
    margin-top: 4px;
    width: 18px;
    height: 18px;
}

.form-checkbox label {
    margin: 0;
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.form-checkbox a {
    color: var(--color-accent);
    text-decoration: underline;
}

/* Honeypot-Feld: für echte Nutzer unsichtbar, aber für Screenreader
   nicht relevant (aria-hidden) und nicht per Tab erreichbar. */
.honeypot-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ---------- Status pages ---------- */
.status-section {
    padding: 120px 0;
}

.status-content {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

.status-code {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

/* ---------- Legal pages ---------- */
.legal-section {
    padding: 72px 0;
}

.legal-content {
    max-width: 720px;
}

.legal-content h2 {
    margin-top: 2em;
}

.legal-notice {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    font-size: 0.88rem;
}

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding-top: 56px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    padding-bottom: 40px;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.footer-title {
    font-weight: 700;
    margin: 0;
    color: var(--color-text);
}

.footer-subtitle {
    font-size: 0.85rem;
    margin: 4px 0 0;
}

.footer-columns {
    display: flex;
    gap: 56px;
    flex-wrap: wrap;
}

.footer-column h2 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
    margin-bottom: 14px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column a {
    font-size: 0.9rem;
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 20px 24px;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.82rem;
    text-align: center;
}

/* ---------- Reveal animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}