/* =====================================================
   ITESP — Globales Stylesheet (Redesign 2026)
===================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Instrument+Serif:ital@0;1&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --ink: #0e1117;
  --ink-muted: #4a5568;
  --ink-faint: #a0aec0;
  --surface: #ffffff;
  --surface-2: #f7f8fa;
  --surface-3: #eef0f4;
  --accent: #5a9e3a;
  --accent-dim: #e4f2db;
  --accent-dark: #4a8a2e;
  --green: #00875a;
  --green-dim: #d3f0e4;
  --amber: #b45309;
  --amber-dim: #fef3c7;
  --border: rgba(14,17,23,0.08);
  --border-strong: rgba(14,17,23,0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ---- HEADER ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--ink);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-mark svg { width: 20px; height: 20px; }

.logo-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
}

.logo-name span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--ink-muted);
  display: block;
  margin-top: 3px;
  letter-spacing: 0;
}

nav { display: flex; align-items: center; gap: 4px; }

nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

nav a:hover { color: var(--ink); background: var(--surface-2); text-decoration: none; }
nav a.active { color: var(--ink); font-weight: 600; }

.nav-cta {
  margin-left: 8px;
  background: var(--accent) !important;
  color: #fff !important;
  padding: 8px 16px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
}

.nav-cta:hover { background: var(--accent-dark) !important; color: #fff !important; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  cursor: pointer;
  gap: 5px;
  flex-direction: column;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ---- UTILITY ---- */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-title em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 52px;
}

.section-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  transition: gap 0.15s;
}
.section-link:hover { gap: 10px; text-decoration: none; }

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn-primary:hover { background: #1a2233; transform: translateY(-1px); text-decoration: none; color: #fff; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  transition: background 0.15s, border-color 0.15s;
  text-decoration: none;
}
.btn-secondary:hover { background: var(--surface-2); text-decoration: none; }

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-1px); text-decoration: none; color: #fff; }

/* ---- PAGE HERO (Unterseiten) ---- */
.page-hero {
  padding: 64px 0 60px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.page-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.page-hero-text .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.page-hero-text h1 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.12;
  margin-bottom: 16px;
}

.page-hero-text h1 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.page-hero-text p {
  font-size: 1.05rem;
  color: var(--ink-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 28px;
}

.page-hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.page-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- SERVICE CARDS ---- */
.services-section {
  padding: 80px 0;
  background: var(--surface);
}

.services-section.alt { background: var(--surface-2); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.svc-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.svc-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.svc-card.dark {
  background: var(--ink);
  border-color: transparent;
  color: #fff;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.icon-blue { background: var(--accent-dim); color: var(--accent); }
.icon-green { background: var(--green-dim); color: var(--green); }
.icon-amber { background: var(--amber-dim); color: var(--amber); }
.icon-dark { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.8); }

.card-icon svg { width: 20px; height: 20px; }

.svc-card h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.svc-card.dark h3 { color: #fff; }

.svc-card p {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

.svc-card.dark p { color: rgba(255,255,255,0.55); }

/* ---- CTA BOX ---- */
.cta-section {
  padding: 80px 0;
  background: var(--surface-2);
}

.cta-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 64px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.cta-box h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 14px;
}

.cta-box h2 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.cta-box > p {
  font-size: 1rem;
  color: var(--ink-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-meta {
  margin-top: 20px;
  font-size: 0.78rem;
  color: var(--ink-faint);
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.5);
  padding: 48px 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-brand { display: flex; align-items: center; gap: 10px; }

.footer-brand-mark {
  width: 30px;
  height: 30px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-brand-mark svg { width: 16px; height: 16px; }
.footer-name { font-size: 0.9rem; font-weight: 600; color: rgba(255,255,255,0.8); }
.footer-sub { font-size: 0.72rem; color: rgba(255,255,255,0.3); }

.footer-links { display: flex; gap: 20px; font-size: 0.8rem; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,0.4); transition: color 0.15s; }
.footer-links a:hover { color: rgba(255,255,255,0.8); text-decoration: none; }

/* ---- PROSE (Impressum, Datenschutz, AGB) ---- */
.prose-section {
  padding: 72px 0;
  background: var(--surface);
}

.prose-inner {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 32px;
}

.prose-inner h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.prose-inner .prose-meta {
  font-size: 0.8rem;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.prose-inner h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 36px 0 12px;
}

.prose-inner h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 24px 0 8px;
}

.prose-inner p { font-size: 0.925rem; color: var(--ink-muted); line-height: 1.75; margin-bottom: 14px; }
.prose-inner a { color: var(--accent); }
.prose-inner a:hover { text-decoration: underline; }

.prose-inner ul, .prose-inner ol {
  margin: 8px 0 16px 20px;
  font-size: 0.925rem;
  color: var(--ink-muted);
  line-height: 1.75;
}

.prose-inner li { margin-bottom: 4px; }

.prose-inner address {
  font-style: normal;
  font-size: 0.925rem;
  color: var(--ink-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}

/* ---- CONTACT FORM AREA ---- */
.contact-section {
  padding: 80px 0;
  background: var(--surface-2);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.form-card h2 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.form-card .form-lead {
  font-size: 0.875rem;
  color: var(--ink-muted);
  margin-bottom: 24px;
}

.zammad-inline {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.form-note {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--ink-faint);
  line-height: 1.6;
}

.form-note a { color: var(--accent); }

.sidebar-cards { display: flex; flex-direction: column; gap: 12px; }

.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.sidebar-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.sidebar-card p {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.sidebar-card ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 2;
}

.sidebar-card ul li::before {
  content: '→ ';
  color: var(--accent);
  font-weight: 600;
}

.contact-direct a {
  color: var(--accent);
  font-weight: 600;
}

/* ---- CHECKLIST ---- */
.checklist {
  list-style: none;
  margin: 12px 0;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--ink-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ---- PRICING CARDS ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--accent);
  position: relative;
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 100px;
  white-space: nowrap;
  font-family: var(--font-mono);
}

.pricing-name {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.pricing-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-card .desc {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 20px;
  flex: 1;
}

/* ---- TRAINING CARDS ---- */
.training-section {
  padding: 80px 0;
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.training-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -60px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,102,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.training-section .section-label { color: rgba(255,255,255,0.35); }
.training-section .section-title { color: #fff; }

.training-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 40px;
}

.training-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: background 0.2s;
}

.training-card:hover { background: rgba(255,255,255,0.08); }

.training-mono {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  color: rgba(255,255,255,0.18);
  margin-bottom: 14px;
}

.training-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.training-card p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.65;
}

.training-tag {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(255,255,255,0.35);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  padding: 3px 10px;
}

/* ---- 404 ---- */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 32px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 6rem;
  font-weight: 500;
  color: var(--surface-3);
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-page p {
  color: var(--ink-muted);
  margin-bottom: 32px;
}

/* ---- WHY SECTION ---- */
.why-section {
  padding: 80px 0;
  background: var(--surface);
}

.why-grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-points { display: flex; flex-direction: column; gap: 28px; }

.why-point { display: flex; align-items: flex-start; gap: 16px; }

.why-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  min-width: 24px;
  margin-top: 3px;
}

.why-content h4 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.why-content p {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.65;
}

.compare-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.compare-header {
  background: var(--surface-2);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.compare-header-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.compare-row {
  display: flex;
  align-items: center;
  padding: 13px 20px;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.compare-row:last-child { border-bottom: none; }
.compare-label { flex: 1; color: var(--ink-muted); font-weight: 500; }

.compare-val {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  font-size: 0.78rem;
  min-width: 90px;
  justify-content: flex-end;
}

.check-green { color: var(--green); }
.check-red { color: #dc2626; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .training-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; }
}

@media (max-width: 768px) {
  .header-inner { padding: 0 16px; }
  nav { display: none; }
  .nav-toggle { display: flex; }
  nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 64px 0 auto 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px;
    gap: 2px;
    z-index: 99;
  }
  nav.open a { display: block; }
  nav.open .nav-cta { text-align: center; }

  .section-inner { padding: 0 16px; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-title { font-size: 1.8rem; }

  .page-hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 0 16px; }
  .page-hero { padding: 48px 0 40px; }
  .page-hero-image { display: none; }

  .services-grid { grid-template-columns: 1fr; }
  .why-grid-layout { grid-template-columns: 1fr; gap: 40px; }
  .compare-card { display: none; }

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

  .cta-box { padding: 36px 20px; }

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

  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer-inner { padding: 0 16px; }

  .prose-inner { padding: 0 16px; }
}