/*
Theme Name: Elektrotechnik Kirst
Theme URI: https://elektrotechnik-kirst.de
Author: Elektrotechnik Kirst
Description: Individuelles WordPress-Theme fuer Elektrotechnik Kirst - Elektroinstallation und Schaltanlagenplanung in Bornheim, Bonn und Koeln.
Version: 1.0
Requires PHP: 7.4
Text Domain: elektrotechnik-kirst
*/

/* =========================================================
   DESIGN TOKENS
========================================================= */
:root {
  --color-brand-blue: #2481FF;
  --color-brand-blue-dark: #1462C4;
  --color-anthracite: #2B2B2B;
  --color-steel: #4A4A4A;
  --color-steel-light: #7A7E85;
  --color-bg: #F7F8FA;
  --color-bg-alt: #EEF0F1;
  --color-white: #FFFFFF;
  --color-warn: #FFB020;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --diagonal-angle: 6deg;
  --max-width: 1180px;
  --radius: 2px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-anthracite);
  background: var(--color-bg);
  font-size: 17px;
  line-height: 1.6;
}

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

a { color: var(--color-brand-blue-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.05;
  color: var(--color-anthracite);
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }

p { margin: 0 0 1em; }

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-blue-dark);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0.8em;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-warn);
  display: inline-block;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-warn);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* =========================================================
   SIGNATURE: DIAGONAL SECTION DIVIDERS
   Echoes the angled cut in the logo's "E" mark
========================================================= */
.diagonal-down {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4vw), 0 100%);
}
.diagonal-up {
  clip-path: polygon(0 4vw, 100% 0, 100% 100%, 0 100%);
}

/* "Leiterbahn" connector line between sections */
.trace-line {
  position: relative;
  width: 2px;
  height: 60px;
  margin: 0 auto;
  background: var(--color-steel-light);
  overflow: hidden;
}
.trace-line::after {
  content: "";
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-brand-blue);
  animation: trace-pulse 2.4s ease-in-out infinite;
}
@keyframes trace-pulse {
  0% { top: -100%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

/* =========================================================
   HEADER
========================================================= */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-bg-alt);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.site-logo img { height: 42px; width: auto; }

.primary-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}
.primary-nav a {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  color: var(--color-anthracite);
  font-weight: 600;
}
.primary-nav a:hover { color: var(--color-brand-blue); text-decoration: none; }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--color-anthracite);
  color: var(--color-white) !important;
  padding: 10px 18px;
  border-radius: var(--radius);
}
.header-cta:hover { background: var(--color-brand-blue); text-decoration: none; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--color-anthracite);
}

@media (max-width: 860px) {
  .primary-nav { display: none; width: 100%; }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; gap: 0; }
  .primary-nav li { border-top: 1px solid var(--color-bg-alt); }
  .primary-nav a { display: block; padding: 14px 0; }
  .site-header .container { flex-wrap: wrap; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
}

/* =========================================================
   HERO
========================================================= */
.hero {
  background: linear-gradient(135deg, var(--color-anthracite) 0%, #1d1d1d 100%);
  color: var(--color-white);
  padding: 100px 0 140px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  right: -10%;
  top: -20%;
  width: 60%;
  height: 140%;
  background: var(--color-brand-blue);
  opacity: 0.12;
  clip-path: polygon(30% 0, 100% 0, 70% 100%, 0% 100%);
}
.hero .container { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { color: var(--color-white); }
.hero h1 span { color: var(--color-brand-blue); }
.hero-lead {
  font-size: 1.2rem;
  color: #D6D9DD;
  max-width: 46ch;
  margin-bottom: 1.6em;
}
.hero-facts {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 2.4em;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #B7BBC1;
}
.hero-facts strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-white);
  text-transform: none;
}

.btn {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  padding: 14px 30px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}
.btn-primary {
  background: var(--color-brand-blue);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-brand-blue-dark); text-decoration: none; }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: var(--color-white);
  margin-left: 12px;
}
.btn-outline:hover { border-color: var(--color-white); text-decoration: none; }

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .btn-outline { margin-left: 0; margin-top: 10px; }
}

/* =========================================================
   SECTIONS - GENERAL
========================================================= */
section { padding: 90px 0; }
.section-alt { background: var(--color-white); }

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head .eyebrow { justify-content: center; }

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--color-bg-alt);
}
.service-card {
  background: var(--color-white);
  padding: 40px 32px;
  transition: background 0.2s ease;
}
.service-card:hover { background: var(--color-bg); }
.service-num {
  font-family: var(--font-mono);
  color: var(--color-brand-blue);
  font-size: 0.85rem;
  margin-bottom: 1em;
  display: block;
}
.service-card h3 { margin-bottom: 0.5em; }
.service-card p { color: var(--color-steel); font-size: 0.98rem; margin-bottom: 0; }

@media (max-width: 860px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* Process / working steps */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}
.process-list li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-top: 5px solid var(--color-bg-alt);
}
.process-list li:last-child { border-bottom: 1px solid var(--color-bg-alt); }
.process-list li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--color-brand-blue);
}
.process-list h4 { margin-bottom: 0.3em; }
.process-list p { margin: 0; color: var(--color-steel); }

/* Trust bar */
.trust-bar {
  background: var(--color-anthracite);
  color: var(--color-white);
  padding: 20px 0;
}
.trust-bar .container {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: center;
}

/* CTA band */
.cta-band {
  background: var(--color-brand-blue);
  color: var(--color-white);
  text-align: center;
}
.cta-band h2 { color: var(--color-white); }
.cta-band .btn-primary { background: var(--color-anthracite); }
.cta-band .btn-primary:hover { background: #000; }

/* About page */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.credential-list { list-style: none; margin: 24px 0 0; padding: 0; }
.credential-list li {
  padding: 12px 0;
  border-top: 1px solid var(--color-bg-alt);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--color-steel);
}
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-info-card {
  background: var(--color-anthracite);
  color: var(--color-white);
  padding: 40px;
  border-radius: var(--radius);
}
.contact-info-card h3 { color: var(--color-white); }
.contact-info-card a { color: var(--color-white); }
.contact-detail {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: 1.4em;
  display: block;
}
.contact-detail small {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9AA0A8;
  font-size: 0.72rem;
  margin-bottom: 4px;
}

.wpcf7-form, .contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-steel);
  margin-bottom: 6px;
  display: block;
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #D5D8DC;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-white);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } .contact-grid { grid-template-columns: 1fr; } }

.form-notice {
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 0.92rem;
  margin-bottom: 16px;
}
.form-notice.success { background: #E4F5EA; color: #1F7A3F; border: 1px solid #B7E3C6; }
.form-notice.error { background: #FCEAEA; color: #B0261E; border: 1px solid #F3C2C0; }

/* =========================================================
   FOOTER
========================================================= */
.site-footer {
  background: var(--color-anthracite);
  color: #C7CAD0;
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #3D3D3D;
}
.footer-grid h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 1em;
}
.site-footer a { color: #C7CAD0; }
.site-footer a:hover { color: var(--color-brand-blue); text-decoration: none; }
.footer-logo img { height: 34px; margin-bottom: 16px; }
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin-bottom: 10px; font-size: 0.95rem; }
.footer-bottom {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #8B8F96;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr; } }