/* =====================================================
   König IT Security – Stylesheet
   ===================================================== */

/* ── Custom Properties ─────────────────────────────── */
:root {
    --primary:        #1F4E79;
    --primary-dark:   #163A5A;
    --primary-light:  #2E75B6;
    --accent:         #E8F0FB;
    --bg:             #FFFFFF;
    --bg-light:       #F5F7FA;
    --text:           #2D3748;
    --text-muted:     #64748B;
    --border:         #E2E8F0;
    --white:          #FFFFFF;

    --font: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

    --r-sm: 6px;
    --r-md: 12px;
    --r-lg: 20px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);

    --max-w: 1140px;
    --sec-pad: 88px;
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ────────────────────────────────────── */
h1, h2, h3 { font-weight: 700; line-height: 1.2; color: var(--primary); }
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.125rem); }
h3 { font-size: 1.1rem; }
p  { color: var(--text-muted); line-height: 1.75; }

/* ── Layout ────────────────────────────────────────── */
.container  { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section    { padding: var(--sec-pad) 0; }
.bg-light   { background: var(--bg-light); }

/* ── Buttons ───────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: var(--r-sm);
    font-size: 1rem; font-weight: 600; border: none;
    cursor: pointer; transition: all 0.2s ease;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-full { width: 100%; justify-content: center; }

/* ── Section Label ─────────────────────────────────── */
.section-label {
    display: inline-block; font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--primary-light); margin-bottom: 10px;
}
.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-header p { margin-top: 12px; }

/* ── Navigation ────────────────────────────────────── */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    transition: background 0.3s, box-shadow 0.3s;
}
.site-header.scrolled { background: var(--primary); box-shadow: 0 2px 20px rgba(0,0,0,0.15); }

.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { font-size: 1.05rem; font-weight: 700; color: var(--white); letter-spacing: -0.02em; }
.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-link { color: rgba(255,255,255,0.82); font-size: 0.88rem; font-weight: 500; transition: color 0.2s; }
.nav-link:hover { color: var(--white); }
.nav-cta {
    color: var(--white) !important; background: rgba(255,255,255,0.12);
    padding: 8px 18px; border-radius: var(--r-sm);
    border: 1px solid rgba(255,255,255,0.25); transition: background 0.2s;
}
.nav-cta:hover { background: rgba(255,255,255,0.22); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--white); border-radius: 2px; transition: all 0.3s; }
.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Hero ──────────────────────────────────────────── */
.hero {
    position: relative; min-height: 100vh;
    display: flex; align-items: center;
    background: var(--primary); overflow: hidden; padding-top: 68px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-shape {
    position: absolute; right: -80px; top: -40px;
    width: 65%; max-width: 680px; opacity: 0.55;
}
.hero-content { position: relative; z-index: 1; padding: 72px 24px; width: 100%; }
.hero-badge {
    display: inline-block; background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2); color: rgba(255,255,255,0.88);
    font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em;
    text-transform: uppercase; padding: 6px 14px; border-radius: 100px; margin-bottom: 24px;
}
.hero-headline { color: var(--white); max-width: 680px; margin-bottom: 20px; line-height: 1.15; }
.hero-sub { color: rgba(255,255,255,0.72); font-size: 1.1rem; max-width: 520px; margin-bottom: 36px; line-height: 1.7; }

/* ── Über Mich ─────────────────────────────────────── */
.ueber-grid { display: grid; grid-template-columns: 260px 1fr; gap: 64px; align-items: start; }

.ueber-visual { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.avatar-icon {
    width: 110px; height: 110px; background: var(--accent);
    border-radius: 50%; display: flex; align-items: center; justify-content: center; padding: 22px;
}
.cert-badges { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.cert-badge {
    background: var(--primary); color: var(--white);
    font-size: 0.72rem; font-weight: 700; padding: 5px 14px;
    border-radius: 100px; text-align: center; white-space: nowrap;
}

.ueber-text h2 { margin-bottom: 16px; }
.ueber-text p  { margin-bottom: 16px; }
.feature-list  { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; color: var(--text); font-size: 0.92rem; }
.check-icon { width: 20px; height: 20px; flex-shrink: 0; margin-top: 1px; }

/* ── Leistungen / Cards ────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--r-md); padding: 32px; position: relative;
    transition: box-shadow 0.3s, transform 0.3s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card-featured { background: var(--primary); border-color: var(--primary); }
.card-featured h3 { color: var(--white); }
.card-featured p  { color: rgba(255,255,255,0.72); }
.card-icon { width: 52px; height: 52px; margin-bottom: 20px; }
.card-badge {
    position: absolute; top: 18px; right: 18px;
    background: rgba(255,255,255,0.18); color: white;
    font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.05em; padding: 4px 10px; border-radius: 100px;
}
.card h3 { margin-bottom: 10px; }
.card-list { margin-top: 20px; display: flex; flex-direction: column; gap: 8px; }
.card-list li { font-size: 0.875rem; color: var(--text-muted); padding-left: 16px; position: relative; }
.card-list li::before { content: '→'; position: absolute; left: 0; color: var(--primary-light); }
.card-featured .card-list li { color: rgba(255,255,255,0.62); }
.card-featured .card-list li::before { color: rgba(255,255,255,0.45); }

/* ── Warum ─────────────────────────────────────────── */
.warum-grid  { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 64px; }
.warum-item  { display: flex; flex-direction: column; gap: 10px; }
.warum-icon  { width: 40px; height: 40px; }

/* ── Zielgruppen ───────────────────────────────────── */
.zielgruppen-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.zielgruppen-item {
    padding: 32px; background: var(--bg);
    border-radius: var(--r-md); border: 1px solid var(--border);
}
.zielgruppen-num {
    font-size: 2.5rem; font-weight: 800; line-height: 1;
    margin-bottom: 14px; color: rgba(31,78,121,0.12);
}
.zielgruppen-item h3 { margin-bottom: 10px; font-size: 1rem; }

/* ── Kontakt ───────────────────────────────────────── */
.kontakt { background: var(--primary); }
.kontakt .section-label { color: rgba(255,255,255,0.55); }
.kontakt h2 { color: var(--white); }
.kontakt-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.kontakt-info p { color: rgba(255,255,255,0.68); margin-top: 14px; margin-bottom: 32px; }
.kontakt-item { display: flex; align-items: center; gap: 12px; }
.kontakt-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.kontakt-item a { color: rgba(255,255,255,0.82); font-size: 0.95rem; transition: color 0.2s; }
.kontakt-item a:hover { color: var(--white); }

/* Form */
.kontakt-form-wrap { background: var(--white); border-radius: var(--r-lg); padding: 40px; box-shadow: var(--shadow-lg); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-group input,
.form-group textarea {
    width: 100%; padding: 12px 16px; border: 1.5px solid var(--border);
    border-radius: var(--r-sm); font-size: 0.95rem; font-family: var(--font);
    color: var(--text); background: var(--bg); outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(46,117,182,0.1); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-hint { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 20px; line-height: 1.5; }
.form-hint a { color: var(--primary); text-decoration: underline; }

/* ── Footer ────────────────────────────────────────── */
.site-footer { background: var(--primary-dark); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; padding: 48px 24px; gap: 32px; max-width: var(--max-w); margin: 0 auto; }
.footer-logo { display: block; font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.footer-brand p { font-size: 0.82rem; color: rgba(255,255,255,0.45); line-height: 1.6; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 20px; justify-content: flex-end; }
.footer-nav a { font-size: 0.875rem; color: rgba(255,255,255,0.55); transition: color 0.2s; }
.footer-nav a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.07); padding: 18px 0; text-align: center; }
.footer-bottom p { font-size: 0.78rem; color: rgba(255,255,255,0.38); }
.footer-bottom a { color: rgba(255,255,255,0.48); transition: color 0.2s; }
.footer-bottom a:hover { color: rgba(255,255,255,0.75); }

/* ── Sub-Pages (Impressum, Datenschutz) ────────────── */
.page-hero {
    background: var(--primary); padding: 120px 0 56px;
    text-align: center;
}
.page-hero h1 { color: var(--white); font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: 12px; }
.page-hero p  { color: rgba(255,255,255,0.65); }

.prose { max-width: 760px; margin: 0 auto; padding: var(--sec-pad) 24px; }
.prose h2 { font-size: 1.35rem; margin: 40px 0 12px; }
.prose h3 { font-size: 1.05rem; margin: 28px 0 8px; color: var(--primary); }
.prose p  { margin-bottom: 14px; }
.prose ul { margin: 12px 0 14px 20px; list-style: disc; }
.prose ul li { color: var(--text-muted); margin-bottom: 6px; line-height: 1.65; }
.prose a  { color: var(--primary); text-decoration: underline; }
.prose .back-link { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 40px; font-size: 0.875rem; color: var(--primary); font-weight: 600; }

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 960px) {
    :root { --sec-pad: 64px; }
    .ueber-grid    { grid-template-columns: 1fr; gap: 40px; }
    .ueber-visual  { flex-direction: row; justify-content: flex-start; }
    .cert-badges   { flex-direction: row; flex-wrap: wrap; }
    .cards-grid    { grid-template-columns: 1fr; }
    .warum-grid    { grid-template-columns: 1fr; gap: 32px; }
    .zielgruppen-grid { grid-template-columns: 1fr; }
    .kontakt-grid  { grid-template-columns: 1fr; gap: 44px; }
    .footer-inner  { flex-direction: column; align-items: flex-start; }
    .footer-nav    { justify-content: flex-start; }
}

@media (max-width: 600px) {
    :root { --sec-pad: 48px; }
    .nav-menu {
        display: none; position: fixed; top: 68px; left: 0; right: 0;
        background: var(--primary); flex-direction: column;
        gap: 0; padding: 12px 0; box-shadow: var(--shadow-lg);
    }
    .nav-menu.is-open { display: flex; }
    .nav-link { padding: 13px 24px; width: 100%; }
    .nav-cta  { margin: 8px 24px; width: calc(100% - 48px); text-align: center; }
    .nav-toggle { display: flex; }
    .hero-shape { opacity: 0.25; }
    .kontakt-form-wrap { padding: 24px; }
    .ueber-visual { flex-direction: column; align-items: center; }
}