/* ==========================================================================
   Yakut AI – Shared Design System
   Ein durchgängiges Stylesheet für alle Seiten der Yakut AI Website.
   Gestaltet nach layout_yakutai.md: dunkles Raumfahrer-Design mit
   Neon-Türkis, Rubinrot als Marke-Akzent und Gold nur in kleinen Momenten.
   ========================================================================== */

:root {
    /* Farbpalette (layout_yakutai.md) */
    --space-black: #030909;       /* Haupthintergrund, Navigation, Footer */
    --petrol: #082B30;          /* Karten, Inhaltsflächen, abgesetzte Bereiche */
    --yakut-navy: #082B50;      /* dunkle Flächen für Vertiefungen */
    --neon-turkis: #18E6E6;     /* primäre Interaktion: Buttons, Links, aktive Elemente */
    --ruby: #C8102E;           /* Marke, einzelne markante Akzente */
    --ruby-dark: #8E0F24;
    --ruby-bright: #FF5C7E;    /* heller Rubinrot-Akzent */
    --gold: #D59B32;           /* seltene, hochwertige Details */
    --ice-white: #F3FAFA;     /* Überschriften und Haupttext auf dunklen Flächen */
    --cool-gray-blue: #C9D6DC; /* Begleittexte und sekundäre Informationen (besserer Kontrast) */

    /* Oberflächen */
    --surface: var(--petrol);
    --surface-raised: #0A3940;

    /* Schatten (dunkeltintiert) */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 18px 44px rgba(0, 0, 0, 0.55);

    /* Rahmen */
    --border: rgba(255, 255, 255, 0.12);
    --ring: rgba(24, 230, 230, 0.45);

    /* Formel & Abmessungen */
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --header-height: 68px;
    --container: 1140px;
    --transition: 180ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.65;
    color: var(--ice-white);
    background: var(--space-black);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

a {
    color: var(--neon-turkis);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--ruby-bright);
}

:focus-visible {
    outline: 3px solid var(--ring);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Skip-Link: standardmäßig versteckt, beim Fokus sichtbar */
.skip-link {
    position: absolute;
    top: -10000px;
    left: 0;
    background: var(--neon-turkis);
    color: #04141A;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    z-index: 9999;
    text-decoration: none;
    border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
    top: 0;
    left: 0;
}

::selection {
    background: var(--ruby);
    color: var(--ice-white);
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.6rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition),
        background var(--transition), color var(--transition), border-color var(--transition);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0) scale(0.98);
}

/* Primärer Button: Türkis mit schwarzer Beschriftung – etwas größer */
.btn-primary {
    padding: 1.05rem 2.1rem;
    font-size: 1.08rem;
    background: var(--neon-turkis);
    color: #04141A;
    box-shadow: 0 10px 26px rgba(24, 230, 230, 0.28);
}

.btn-primary:hover {
    color: #04141A;
    box-shadow: 0 14px 34px rgba(24, 230, 230, 0.38);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.4);
    color: var(--ice-white);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: var(--ice-white);
    color: var(--ice-white);
}

.btn-light {
    background: var(--ice-white);
    color: var(--yakut-navy);
    box-shadow: var(--shadow-md);
}

.btn-light:hover {
    color: var(--ruby-bright);
}

.btn-sm {
    padding: 0.5rem 1.1rem;
    font-size: 0.9rem;
}

/* ========== Header & Navigation ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(3, 9, 9, 0.45);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    backdrop-filter: blur(28px) saturate(180%);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.site-header::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-turkis), transparent);
    opacity: 0.35;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: var(--header-height);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ice-white);
    white-space: nowrap;
}

.brand:hover {
    color: var(--ruby-bright);
}

.brand img {
    height: 52px;
    width: auto;
    border-radius: 10px;
    filter: drop-shadow(0 0 8px rgba(24, 230, 230, 0.35));
    transition: transform var(--transition), filter var(--transition);
}

.brand img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 16px rgba(24, 230, 230, 0.65));
}

.brand:focus-within img {
    filter: drop-shadow(0 0 16px rgba(24, 230, 230, 0.65));
}

/* ========== Hero-Logo (groß, mittig im Hero) ========== */
.hero-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.hero-logo img {
    width: 220px;
    height: auto;
    border-radius: 16px;
    filter: drop-shadow(0 0 20px rgba(24, 230, 230, 0.25));
    animation: logoPulse 4s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(24, 230, 230, 0.25));
        transform: scale(1);
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(24, 230, 230, 0.45));
        transform: scale(1.02);
    }
}

/* ========== Footer-Logo (etwas größer) ========== */
.site-footer .brand img {
    height: 48px;
    width: auto;
    border-radius: 10px;
    filter: drop-shadow(0 0 8px rgba(24, 230, 230, 0.25));
}

.main-nav {
    display: none;
}

.menu-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0.5rem;
    background: none;
    border: none;
    border-radius: 10px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--ice-white);
    transition: transform var(--transition), opacity var(--transition);
}

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

.menu-toggle[aria-expanded='true'] span:nth-child(2) {
    opacity: 0;
}

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

.main-nav a {
    color: var(--cool-gray-blue);
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    transition: color var(--transition), background var(--transition), transform var(--transition);
    font-weight: 600;
    font-size: 0.85rem;
}

.main-nav a:hover {
    color: var(--ice-white);
    background: rgba(24, 230, 230, 0.10);
    transform: translateY(-1px);
}

.main-nav a[aria-current="page"] {
    color: var(--ice-white);
    background: rgba(24, 230, 230, 0.15);
    box-shadow: none;
}

.mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 1100;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.mobile-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    width: min(360px, 86vw);
    height: 100%;
    padding: 1.25rem;
    background: var(--surface-raised);
    box-shadow: var(--shadow-lg);
    transform: translateX(-105%);
    transition: transform 0.3s ease;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--ice-white);
}

.mobile-close-btn {
    background: none;
    border: none;
    font-size: 1.75rem;
    line-height: 1;
    color: var(--cool-gray-blue);
    cursor: pointer;
}

.mobile-menu nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu nav li {
    margin-bottom: 0.25rem;
    border-bottom: 1px solid var(--border);
}

.mobile-menu nav a {
    display: block;
    padding: 0.7rem 0.5rem;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ice-white);
    border-radius: var(--radius-sm);
}

.mobile-menu nav a:hover {
    color: var(--neon-turkis);
    background: var(--yakut-navy);
}

/* ========== Hero ========== */
.hero {
    position: relative;
    overflow: hidden;
    padding: 4.5rem 1.25rem 4.5rem;
    text-align: center;
    color: var(--ice-white);
    background-color: var(--space-black);
    background-image: url('kosmisch_20261016.jpg');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

/* Nur im Einstiegsbereich: Leuchteffekte */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(600px 320px at 12% 15%, rgba(24, 230, 230, 0.18), transparent 60%),
        radial-gradient(520px 420px at 88% 8%, rgba(24, 230, 230, 0.14), transparent 60%),
        radial-gradient(700px 480px at 50% 105%, rgba(255, 92, 126, 0.10), transparent 60%);
}

.hero-inner {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
}

.eyebrow {
    display: inline-block;
    margin: 0 0 0.9rem;
    padding: 0.35rem 0.95rem;
    border: 1px solid rgba(24, 230, 230, 0.45);
    border-radius: 999px;
    background: rgba(24, 230, 230, 0.10);
    color: var(--neon-turkis);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    margin: 0 0 1.25rem;
    font-size: clamp(2rem, 6vw, 3.4rem);
    line-height: 1.12;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero h1 .accent {
    color: var(--ruby-bright);
}

.hero .lead {
    max-width: 640px;
    margin: 0 auto 2rem;
    font-size: clamp(1.05rem, 2.6vw, 1.2rem);
    opacity: 0.94;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2.25rem;
}

.trust-chip {
    padding: 0.35rem 0.95rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--ice-white);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ========== Sektionen ========== */
main > section,
.section {
    padding: 4.5rem 1.25rem 3rem;
}

.section--surface {
    background: var(--surface);
}

.section-head {
    max-width: 720px;
    margin: 0 auto 3rem;
    text-align: center;
}

.section-title {
    margin: 0 0 0.75rem;
    font-size: clamp(1.7rem, 4.5vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--ice-white);
}

.section-title .accent {
    color: var(--ruby-bright);
}

.section-lead {
    margin: 0;
    font-size: 1.05rem;
    color: var(--cool-gray-blue);
}

/* ========== Über uns (Intro) ========== */
.intro {
    display: grid;
    gap: 2.5rem;
    align-items: center;
}

.intro-copy h2 {
    margin: 0 0 1rem;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--ice-white);
}

.intro-copy p {
    margin: 0 0 1rem;
    color: var(--ice-white);
}

.intro-list {
    list-style: none;
    margin: 1.25rem 0 0;
    padding: 0;
}

.intro-list li {
    display: flex;
    gap: 0.65rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--ice-white);
}

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

.intro-list .list-icon {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    margin-top: 0.15rem;
    border-radius: 9px;
    background: var(--ruby);
    color: var(--ice-white);
}

.intro-contact {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--ruby);
    border-radius: var(--radius-sm);
    background: var(--yakut-navy);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ice-white);
}

/* Visuelle Panel-Karte im Bereich „Über uns" */
.intro-visual {
    position: relative;
}

.panel {
    padding: 1.75rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.panel h3 {
    margin: 0 0 1rem;
    font-size: 1.15rem;
    color: var(--ice-white);
}

.panel-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.stat {
    padding: 0.9rem 0.5rem;
    text-align: center;
    border-radius: var(--radius-sm);
    background: var(--yakut-navy);
}

.stat strong {
    display: block;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--ice-white);
}

.stat-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.stat-link .stat {
    cursor: pointer;
}

.stat-link:hover .stat {
    border-color: var(--neon-turkis);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat span {
    font-size: 0.8rem;
    color: var(--cool-gray-blue);
}

.stat[data-modal] {
    cursor: pointer;
}

.stat[data-modal]:hover {
    border-color: var(--neon-turkis);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat[data-modal]:focus-visible {
    outline: 3px solid var(--ring);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* ========== Modal Overlays ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1400;
    background: rgba(3, 9, 9, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.modal-overlay[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    position: relative;
    max-width: 640px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    color: var(--ice-white);
    transform: scale(0.95);
    transition: transform var(--transition);
}

.modal-overlay[aria-hidden="false"] .modal-container {
    transform: scale(1);
}

@media (prefers-reduced-motion: reduce) {
    .modal-overlay,
    .modal-container {
        transition: none !important;
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    .modal-overlay[aria-hidden="true"] {
        opacity: 0 !important;
        visibility: hidden !important;
    }
    .modal-container {
        transform: scale(1) !important;
    }
}

.modal-container h2 {
    margin: 0 0 1rem;
    font-size: clamp(1.6rem, 4vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--ice-white);
}

.modal-container h3 {
    margin: 1.5rem 0 0.75rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ice-white);
}

.modal-container p {
    margin: 0 0 1rem;
    color: var(--ice-white);
}

.modal-list {
    margin: 0 0 1.5rem;
    padding-left: 1.25rem;
    color: var(--ice-white);
}

.modal-list li {
    margin-bottom: 0.75rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--cool-gray-blue);
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: color var(--transition), background var(--transition);
}

.modal-close:hover {
    color: var(--ice-white);
    background: rgba(255, 255, 255, 0.1);
}

/* ========== FAQ Sektion ========== */
.faq-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface-raised);
}

.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 700;
    color: var(--ice-white);
    cursor: pointer;
    transition: color var(--transition), background var(--transition);
}

.faq-question:hover {
    color: var(--neon-turkis);
}

.faq-question[aria-expanded="true"] {
    color: var(--neon-turkis);
    background: rgba(24, 230, 230, 0.05);
}

.faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    color: var(--cool-gray-blue);
    transition: transform var(--transition);
}

.faq-question[aria-expanded="true"] .faq-toggle {
    transform: rotate(45deg);
    color: var(--neon-turkis);
}

.faq-answer {
    padding: 0 1.5rem 1.25rem;
    color: var(--cool-gray-blue);
    line-height: 1.6;
}

.faq-answer p {
    margin: 0 0 1rem;
    color: var(--ice-white);
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

/* ========== Werte / Transparenz ========== */
.values-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.value-card {
    padding: 2rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
}

.value-card h3 {
    margin: 0 0 1rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ice-white);
}

.value-card p {
    margin: 0;
    color: var(--cool-gray-blue);
    line-height: 1.6;
}

@media (min-width: 700px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== Leistungen (Services) ========== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.service-card {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--ruby);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: var(--neon-turkis);
    color: #04141A;
    transition: background var(--transition), color var(--transition);
}

.service-card:hover .service-icon {
    background: var(--ruby);
    color: var(--ice-white);
}

.service-card h3 {
    margin: 0 0 0.4rem;
    font-size: 1.1rem;
    color: var(--ice-white);
}

.service-card p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--cool-gray-blue);
}

/* ========== CTA ========== */
.cta {
    padding: 4.5rem 1.25rem;
    text-align: center;
    color: #fff;
    background: linear-gradient(135deg, var(--ruby), var(--ruby-dark));
}

.cta h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.6rem, 4.5vw, 2.3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

.cta p {
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.94;
}

/* Rubinrot ist hier das markante Akzent der Seite */
.cta .btn-light {
    color: var(--ruby);
}

/* ========== Kontakt ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    align-items: start;
}

.contact-card {
    padding: 1.5rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.contact-card h2,
.contact-card h3 {
    margin: 0 0 0.75rem;
    font-size: 1.15rem;
    color: var(--ice-white);
}

.contact-card p {
    margin: 0 0 0.5rem;
    color: var(--ice-white);
}

.contact-card a {
    font-weight: 600;
}

.contact-card ul {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--cool-gray-blue);
}

.contact-card--full {
    grid-column: 1 / -1;
}

.field {
    margin-bottom: 1.25rem;
}

.field label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ice-white);
}

.field input,
.field textarea {
    width: 100%;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--space-black);
    color: var(--ice-white);
    font: inherit;
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--neon-turkis);
    box-shadow: 0 0 0 3px var(--ring);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"],
.field input:invalid:not(:placeholder-shown),
.field textarea:invalid:not(:placeholder-shown) {
    border-color: var(--ruby-bright);
    box-shadow: 0 0 0 3px rgba(255, 92, 126, 0.2);
}

.error-message {
    color: var(--ruby-bright);
    font-size: 0.85rem;
    margin-top: 0.4rem;
}

.consent {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin: 1.25rem 0;
}

.consent input {
    width: auto;
    margin-top: 0.2rem;
    accent-color: var(--neon-turkis);
}

.consent label {
    margin: 0;
    font-size: 0.9rem;
    color: var(--cool-gray-blue);
}

.note {
    font-size: 0.85rem;
    color: var(--cool-gray-blue);
}

/* ========== Rechtliche Seiten (Impressum, Datenschutz, AGB) ========== */
.prose {
    max-width: 780px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.prose h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.6rem, 4.5vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ice-white);
}

.prose h2 {
    margin: 2rem 0 0.75rem;
    padding-top: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--ice-white);
    border-top: 1px solid var(--border);
}

.prose h3 {
    margin: 1.5rem 0 0.5rem;
    font-size: 1.05rem;
    color: var(--ice-white);
}

.prose p,
.prose li {
    color: var(--ice-white);
}

.prose ul {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
}

.meta {
    margin: 0 0 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--cool-gray-blue);
}

.meta strong {
    color: var(--ice-white);
}

.back-link {
    display: inline-block;
    margin: 2rem 0 0;
    font-weight: 600;
}

.prose a:hover {
    text-decoration: underline;
}

.impressum-list strong {
    color: var(--ice-white);
}

/* Definitionen im Impressum */
.impressum-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.impressum-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

.impressum-list dt {
    font-weight: 700;
    color: var(--ice-white);
}

.impressum-list dd {
    margin: 0.15rem 0 0;
}

/* ========== Footer ========== */
.site-footer {
    padding: 3.5rem 1.25rem 2rem;
    background: var(--space-black);
    color: var(--cool-gray-blue);
}

.site-footer .brand {
    color: var(--ice-white);
}

.site-footer .brand:hover {
    color: var(--ruby-bright);
}

.footer-brand p {
    max-width: 340px;
    margin: 1rem 0 0;
    font-size: 0.95rem;
    color: var(--cool-gray-blue);
}

.footer-col h4 {
    margin: 0 0 1rem;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ice-white);
}

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

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: var(--cool-gray-blue);
}

.footer-col a:hover {
    color: var(--neon-turkis);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem 1rem;
    margin-top: 2.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 0.85rem;
    color: var(--cool-gray-blue);
}

/* ========== Cookie-Banner ========== */
.cookie-banner {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1300;
    background: var(--surface-raised);
    border-top: 1px solid var(--border);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.35);
}

.cookie-content {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0.9rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.cookie-content > div:first-child {
    flex: 1 1 320px;
}

.cookie-content > div:last-child {
    flex-shrink: 0;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.cookie-content p {
    flex: 1 1 320px;
    margin: 0;
    font-size: 0.9rem;
    color: var(--cool-gray-blue);
}

/* ========== Blog / Wissenszentrum ========== */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.blog-card {
    padding: 2rem;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.blog-card-image {
    margin-bottom: 1rem;
    color: var(--neon-turkis);
}

.blog-card h2 {
    margin: 0 0 1rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--ice-white);
}

.blog-card h2 a {
    color: var(--ice-white);
    text-decoration: none;
}

.blog-card h2 a:hover {
    color: var(--neon-turkis);
}

.blog-card p {
    margin: 0 0 1rem;
    color: var(--cool-gray-blue);
    line-height: 1.6;
}

.blog-meta {
    display: flex;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--cool-gray-blue);
}

@media (min-width: 700px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== Artikel-Seiten ========== */
.article-page {
    max-width: 720px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 2rem;
}

.article-header .eyebrow {
    display: inline-block;
    margin: 0 0 0.9rem;
    padding: 0.35rem 0.95rem;
    border: 1px solid rgba(24, 230, 230, 0.45);
    border-radius: 999px;
    background: rgba(24, 230, 230, 0.10);
    color: var(--neon-turkis);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.article-header h1 {
    margin: 0 0 1rem;
    font-size: clamp(1.8rem, 5vw, 2.6rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--ice-white);
}

.article-meta {
    font-size: 0.9rem;
    color: var(--cool-gray-blue);
}

.article-content {
    line-height: 1.7;
    color: var(--ice-white);
}

.article-content h2 {
    margin: 2rem 0 1rem;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--ice-white);
}

.article-content h2:first-child {
    margin-top: 0;
}

.article-content p {
    margin: 0 0 1.5rem;
}

.article-content ul.article-list {
    margin: 0 0 1.5rem;
    padding-left: 1.25rem;
}

.article-content ul.article-list li {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-content ul.article-list li strong {
    color: var(--neon-turkis);
}

@media (min-width: 640px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .main-nav {
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .main-nav a {
        padding: 0.45rem 0.65rem;
        border-radius: 999px;
    }

    .menu-toggle {
        display: none;
    }

    main > section {
        padding: 5.5rem 1.25rem 3.5rem;
    }

    .intro {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 4rem;
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contact-grid {
        grid-template-columns: 0.9fr 1.1fr;
    }

    .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }
}