/* ================================
   GLOBAL
================================ */

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

:root{
    /* Farben */
    --bg: #0f172a;
    --bg-header: #020103;
    --border: #334155;
    --text: #e2e8f0;
    --text-dim: #cbd5e1;
    --primary: #3b82f6;
    --primary-hover: #1e60c9;
    --accent: #93c5fd;
    --overlay: rgba(0,0,0,0.80);
    --overlay-hero: rgba(0,0,0,0.55);
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding-top: 80px; /* Platz für fixen Header */
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-hover);
}

/* ================================
   HEADER
================================ */

header {
    width: 100%;
    background: var(--bg-header);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000; /* sicher über Inhalt */
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

nav ul li a {
    color: var(--text);
    font-weight: bold;
    transition: 0.2s;
    white-space: nowrap;
}

nav ul li a:hover {
    color: var(--primary);
}

/* ================================
   HAMBURGER MENU
================================ */

.nav-toggle {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
}

/* ================================
   SUBPAGE LOGO
================================ */

.sub-logo {
    width: 100%;
    background: var(--bg-header);
    padding: 10px 0;
    display: flex;
    align-items: center;
}

.sub-logo-img {
    height: 80px;
    width: auto;
    margin-left: 20px;
}

/* ================================
   HERO
================================ */

.hero {
    position: relative;
    width: 100%;
    height: 420px;
    background-image: url('/img/hintergrund/hintergrund.png');
    background-size: cover;
    background-position: top center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    isolation: isolate; /* eigener Stacking-Kontext */
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--overlay-hero);
    z-index: -1; /* hinter Content */
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    color: #ffffff;
}

.hero h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--text-dim);
    margin-top: 10px;
}

/* ================================
   SERVICE BOXEN
================================ */

.section-title {
    text-align: center;
    font-size: 32px;
    margin: 40px 0 20px;
    color: #fff;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px;
}

.service-box {
    background: #1e293b;
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: 0.3s;
}

.service-box:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.service-box h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--primary);
}

.service-box p {
    color: var(--text-dim);
}

/* ================================
   LEGAL PAGES (Impressum / Datenschutz etc.)
================================ */

.legal-page {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    color: var(--text);
}

.legal-page h1 {
    font-size: 38px;
    margin-bottom: 10px;
    color: var(--primary);
}

.legal-page .intro-text {
    font-size: 16px;
    color: var(--text-dim);
    margin-bottom: 25px;
}

.legal-box {
    background: #1e293b;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
    margin-bottom: 25px;
}

.legal-box h2 {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--accent);
}

.legal-box p {
    line-height: 1.7;
}

.legal-box a {
    color: var(--primary);
}

/* ================================
   VOLLFORMAT-HINTERGRÜNDE (Fix)
   Impressum, Datenschutz, Netzwerk, Sicherheit, Backup, Server, Kontakt
   -> Overlay sicher hinter Inhalt, nicht über Footer
================================ */

.impressum-full-bg,
.datenschutz-full-bg,
.netzwerk-full-bg,
.sicherheit-full-bg,
.backup-full-bg,
.server-full-bg,
.kontakt-full-bg {
    /* jeweiliges Bild unten gesetzt */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    isolation: isolate;  /* eigener Stacking-Kontext */
    z-index: auto;       /* kein erzwungener Layer */
    /* WICHTIG: KEIN background-attachment: fixed; */
}

.impressum-full-bg::before,
.datenschutz-full-bg::before,
.netzwerk-full-bg::before,
.sicherheit-full-bg::before,
.backup-full-bg::before,
.server-full-bg::before,
.kontakt-full-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--overlay);
    z-index: -1;          /* Overlay hinter dem Sektion-Content */
    pointer-events: none; /* blockiert keine Klicks */
}

/* Inhalte über Overlay */
.impressum-full-bg .legal-page,
.impressum-full-bg .legal-box,
.impressum-full-bg .legal-box p,
.impressum-full-bg .legal-box li,
.impressum-full-bg .intro-text,
.datenschutz-full-bg .legal-page,
.datenschutz-full-bg .legal-box,
.datenschutz-full-bg .legal-box p,
.datenschutz-full-bg .legal-box li,
.datenschutz-full-bg .intro-text,
.netzwerk-full-bg .legal-page,
.netzwerk-full-bg .legal-box,
.netzwerk-full-bg .legal-box p,
.netzwerk-full-bg .legal-box li,
.netzwerk-full-bg .intro-text,
.sicherheit-full-bg .legal-page,
.sicherheit-full-bg .legal-box,
.sicherheit-full-bg .legal-box p,
.sicherheit-full-bg .legal-box li,
.sicherheit-full-bg .intro-text,
.backup-full-bg .legal-page,
.backup-full-bg .legal-box,
.backup-full-bg .legal-box p,
.backup-full-bg .legal-box li,
.backup-full-bg .intro-text,
.server-full-bg .legal-page,
.server-full-bg .legal-box,
.server-full-bg .legal-box p,
.server-full-bg .legal-box li,
.server-full-bg .intro-text,
.kontakt-full-bg .legal-page,
.kontakt-full-bg .legal-box,
.kontakt-full-bg .legal-box p,
.kontakt-full-bg .legal-box li,
.kontakt-full-bg .intro-text {
    color: #e5e7eb;
    position: relative;
    z-index: 1; /* sicher über Overlay */
}

/* Überschriften-Farbe innerhalb der Boxen – einheitlich */
.impressum-full-bg .legal-box h2,
.datenschutz-full-bg .legal-box h2,
.netzwerk-full-bg .legal-box h2,
.sicherheit-full-bg .legal-box h2,
.backup-full-bg .legal-box h2,
.server-full-bg .legal-box h2,
.kontakt-full-bg .legal-box h2 {
    color: var(--accent);
    position: relative;
    z-index: 1;
}

/* Individuelle Hintergrundbilder der Sektionen */
.impressum-full-bg { 
    background-image: url("/img/hintergrund/Impressum_hindergrund.jpg"); 
}

.datenschutz-full-bg { 
    background-image: url("/img/hintergrund/Datenschutz-Lupe.jpg"); 
}

.netzwerk-full-bg { 
    background-image: url("/img/hintergrund/netzwerk-anschluesse.jpg"); 
}

.sicherheit-full-bg { 
    background-image: url("/img/hintergrund/it-sicherheit.jpg"); 
}

.backup-full-bg { 
    background-image: url("/img/hintergrund/backup.jpg"); 
}

.server-full-bg { 
    background-image: url("/img/hintergrund/server-full.jpg"); 
}

.kontakt-full-bg { 
    background-image: url("/img/hintergrund/kontakt.jpg"); 
}

/* ================================
   DROPDOWN MENÜ
================================ */

.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background: var(--bg-header);
    padding: 10px 0;
    list-style: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    top: 100%;
    left: 0;
    min-width: 220px;
    z-index: 1001; /* über normalem Content */
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    color: var(--text);
}

.dropdown:hover .dropdown-menu {
    display: block;
}

/* ================================
   KONTAKT – Formular
================================ */

.kontakt-form {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 12px;
}

.kontakt-form input,
.kontakt-form select,
.kontakt-form textarea {
    width: 100%;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
}

.kontakt-form label {
    font-weight: bold;
    color: var(--accent);
}

.kontakt-btn {
    background: var(--primary);
    color: white;
    padding: 12px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: 0.2s;
}

.kontakt-btn:hover {
    background: var(--primary-hover);
}

/* Checkbox (Datenschutz/AGB) */
.kontakt-form .checkbox-row {
    width: 100%;
    margin-top: 12px;
}

.kontakt-form .checkbox {
    display: inline-flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
    line-height: 1.5;
    color: var(--text);
    text-align: left;
}

.kontakt-form .checkbox input[type="checkbox"] {
    margin: 0;
    inline-size: 16px;
    block-size: 16px;
    transform: translateY(2px);
    accent-color: var(--primary);
}

.kontakt-form .checkbox .checkbox-label {
    display: inline-block;
}

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

.kontakt-form .field-error {
    color: #fca5a5;
    font-size: 0.95rem;
    margin-top: 6px;
}

/* ================================
   REFERENZEN-SEITE
================================ */
.referenzen-hero {
    background-image: url("../hintergrund/refernz.jpg"); /* eigenes Bild */
    background-size: cover;
    background-position: center;
    position: relative;
    isolation: isolate;
}
.referenzen-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--overlay-hero);
    z-index: -1;
}

/* Breadcrumb */
.breadcrumb {
    max-width: 1200px;
    margin: 20px auto 0;
    padding: 0 20px;
    color: var(--text-dim);
    font-size: 14px;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb .divider { margin: 0 6px; }
.breadcrumb .current { color: var(--text); }

/* Referenzen-Grid */
.referenzen-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.referenz-box {
    background: #1e293b;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: 0.3s;
    text-align: left;
}

.referenz-box:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.referenz-logo {
    display: block;
    max-width: 140px;
    height: auto;
    margin-bottom: 10px;
    filter: saturate(0.8);
}

.referenz-box h3 {
    color: var(--primary);
    font-size: 20px;
    margin-bottom: 8px;
}

.referenz-box p {
    color: var(--text-dim);
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.6;
}

.referenz-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.referenz-tags li {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
}

/* CTA Bereich */
.referenzen-cta {
    max-width: 1200px;
    margin: 10px auto 30px;
    padding: 0 20px;
    text-align: center;
}
.referenzen-cta p {
    color: var(--text-dim);
    margin-bottom: 10px;
}
.referenzen-cta .kontakt-btn {
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: 0.2s;
}
.referenzen-cta .kontakt-btn:hover {
    background: var(--primary-hover);
}

/* Responsive Feinschliff */
@media (max-width: 768px) {
    .referenz-logo { max-width: 120px; }
}

/* ================================
   FOOTER
================================ */

footer {
    background: rgba(15, 23, 42, 0.95);
    padding: 25px 20px;
    margin-top: 40px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 2; /* Footer über Overlay */
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-container p {
    color: var(--text-dim);
    font-size: 14px;
}

.footer-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.footer-links li a {
    color: var(--primary);
    font-size: 14px;
    transition: 0.2s;
}

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

/* ================================
   RESPONSIVE
================================ */

@media (max-width: 768px) {

    .hamburger {
        display: flex;
    }

    nav {
        position: absolute;
        top: 60px;
        right: 0;
        background: var(--bg-header);
        width: 200px;
        padding: 20px;
        border-radius: 0 0 0 10px;
        display: none;
        z-index: 1001; /* über Inhalt */
        border: 1px solid var(--border);
    }

    nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .nav-toggle:checked + .hamburger + nav {
        display: block;
    }

    .hero h1 {
        font-size: 32px;
    }
    
    
/
/* ================================
   Footer kompakt: nur index_1.php
   -> außerhalb des Media-Blocks!
================================ */
.index-1 footer {
    padding: 12px 16px;       /* vorher 25px 20px */
    margin-top: 20px;         /* vorher 40px */
}

.index-1 .footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;                /* vorher 20px */
    flex-wrap: nowrap;        /* verhindert unnötigen Umbruch */
    max-width: 1200px;
    margin: 0 auto;
}

.index-1 .footer-container p {
    color: var(--text-dim);
    font-size: 12px;          /* vorher 14px */
    line-height: 1.3;
    margin: 0;                /* entfernt extra Abstand */
}

.index-1 .footer-links {
    list-style: none;
    display: flex;
    gap: 12px;                /* vorher 20px */
    margin: 0;
    padding: 0;
}

.index-1 .footer-links li a {
    color: var(--primary);
    font-size: 12px;          /* vorher 14px */
    line-height: 1.3;
    transition: 0.2s;
    white-space: nowrap;      /* vermeidet Zeilenumbruch */
}

.index-1 .footer-links li a:hover {
    color: var(--primary-hover);
}

/* ================================
   Mobile nur für index_1.php
================================ */
@media (max-width: 768px) {
    .index-1 .footer-container {
        flex-direction: column;
        text-align: center;
        flex-wrap: wrap;      /* mobil darf umbrechen */
        gap: 6px;             /* kompakter als global 15px */
    }
    .index-1 footer {
        padding: 10px 14px;
        margin-top: 16px;
    }
}

/* OPTIONAL: globale mobile Regel entfernen oder entschärfen
   (damit andere Seiten nicht unnötig aufgeblasen werden) */
/*
@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 12px;  // falls du global etwas willst, kleiner halten
    }
}
*/