/* ==========================================================================
   Reti Automation — Stylesheet
   Reines CSS, keine Frameworks. Alle Farben/Abstände als Variablen in :root,
   damit z.B. ein Theme-Wechsel (dunkel -> hell) an einer Stelle passiert.
   ========================================================================== */

:root {
  /* Farben — Grundstimmung */
  --color-bg: #0a0a0e;
  --color-bg-elevated: #101015;
  --color-text: #f4f4f7;
  --color-text-muted: #8a8a99;
  --color-border: rgba(244, 244, 247, 0.1);

  /* Akzentfarben */
  --color-accent: #6d5cf5;
  --color-accent-hover: #8272ff;
  --color-accent-blue: #4a9eff;

  /* Canvas-Netzwerk (getrennt haltbar von UI-Akzenten) */
  --network-dot-color: 244, 244, 247;
  --network-line-color: 109, 92, 245;
  --network-line-color-hover: 74, 158, 255;

  /* Typografie */
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --tracking-tight: -0.02em;

  /* Abstände */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Sonstiges */
  --max-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --nav-height: 80px;
}

/* --------------------------------------------------------------------------
   Reset & Grundlagen
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

h1, h2, h3 {
  letter-spacing: var(--tracking-tight);
  line-height: 1.15;
  font-weight: 600;
}

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

@media (max-width: 640px) {
  .container {
    padding: 0 var(--space-sm);
  }
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 14, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-medium);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--color-border);
}

.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Wortmarke */
.brand {
  display: flex;
  align-items: center;
  height: 44px;
}

.brand-logo {
  display: block;
  height: 44px;
  width: auto;
}

.brand-logo-text-eti {
  fill: var(--color-accent);
}

.brand-logo-text-automation {
  fill: var(--color-text-muted);
}

/* Auf der Startseite (Hero vorhanden) ist zunächst die volle Wortmarke sichtbar.
   Ab dem Scroll-Schwellwert (siehe js/main.js) morpht sie sanft zur Kurzmarke (das "R"),
   während die Nav gleichzeitig ihren Rand bekommt. */
.brand--hero-controlled {
  position: relative;
  width: 96px; /* reserviert Platz für die breitere Wortmarke; das R bleibt linksbündig stehen */
}

.brand--hero-controlled .brand-logo {
  position: absolute;
  left: 0;
  top: 50%;
  transform-origin: left center;
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.brand--hero-controlled .brand-logo--full {
  transform: translateY(-50%) scale(1);
}

.brand--hero-controlled .brand-logo--mark {
  height: 36px;
  opacity: 0;
  transform: translateY(-50%) scale(0.82);
  pointer-events: none;
}

.brand--hero-controlled.is-scrolled .brand-logo--full {
  opacity: 0;
  transform: translateY(-50%) scale(0.82);
  pointer-events: none;
}

.brand--hero-controlled.is-scrolled .brand-logo--mark {
  opacity: 1;
  transform: translateY(-50%) scale(1);
  pointer-events: auto;
}

/* Nav-Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-text);
}

/* Burger-Menü (nur mobil sichtbar) */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 101;
}

.nav-burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-burger.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  .nav-burger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(75vw, 320px);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: var(--space-md);
    background: var(--color-bg-elevated);
    padding: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    border-left: 1px solid var(--color-border);
  }

  .nav-links.is-open {
    transform: translateX(0);
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 var(--space-md);
  max-width: 760px;
}

.hero-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-blue);
  margin-bottom: var(--space-sm);
}

.hero-claim {
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto;
}

.scroll-hint {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-hint .scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
  animation: scroll-hint-move 2s ease-in-out infinite;
}

@keyframes scroll-hint-move {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Allgemeine Sektionen
   -------------------------------------------------------------------------- */

section {
  padding: var(--space-xl) 0;
}

.section-heading {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-md);
}

.section-text {
  color: var(--color-text-muted);
  max-width: 640px;
  font-size: 1.05rem;
}

#ueber-uns {
  border-top: 1px solid var(--color-border);
}

#angebot {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

#kontakt {
  border-top: 1px solid var(--color-border);
}

.kontakt-email {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: 1.1rem;
  color: var(--color-accent-blue);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.kontakt-email:hover {
  border-bottom-color: var(--color-accent-blue);
}

/* --------------------------------------------------------------------------
   Unterseiten (Impressum / Datenschutz)
   -------------------------------------------------------------------------- */

.page-header {
  padding-top: calc(var(--nav-height) + var(--space-lg));
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.page-content {
  padding: var(--space-lg) 0;
  max-width: 720px;
}

.page-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-links a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   Hero — Bugfix: .hero-content wurde als einziges Flex-Kind von .hero sonst
   anhand der ungebrochenen Textbreite dimensioniert und lief auf schmalen
   Viewports rechts über den Rand hinaus. width:100% zwingt es, sich an der
   vollen Hero-Breite zu orientieren; max-width bleibt weiterhin die
   Obergrenze für breite Viewports.
   -------------------------------------------------------------------------- */

.hero-content {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Hero — Hervorhebung in der Tagline ("Aus Österreich.")
   -------------------------------------------------------------------------- */

.hero-tagline-accent {
  color: var(--color-accent);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Über uns — Abstand zwischen mehreren Absätzen
   -------------------------------------------------------------------------- */

#ueber-uns .section-text + .section-text {
  margin-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Unser Angebot — Bot-Karten
   -------------------------------------------------------------------------- */

.bot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

@media (max-width: 768px) {
  .bot-grid {
    grid-template-columns: 1fr;
  }
}

.bot-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.bot-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.bot-card-title {
  font-size: 1.15rem;
  font-weight: 600;
}

.bot-card-text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

/* Platzhalter-Button, solange keine Live-Demo eingebunden ist (siehe
   Kommentar im HTML bei .bot-demo). */
.bot-demo-button {
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Kontaktformular (Netlify Forms)
   -------------------------------------------------------------------------- */

.contact-form {
  max-width: 480px;
  margin-top: var(--space-lg);
}

#kontakt .kontakt-email {
  margin-top: var(--space-md);
}

.form-field {
  margin-bottom: var(--space-sm);
}

.form-field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color var(--transition-fast);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  padding: 0.8rem 1.8rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.form-submit:hover {
  background: var(--color-accent-hover);
}

.form-privacy-note {
  max-width: 480px;
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.form-privacy-note a {
  color: var(--color-accent-blue);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.form-privacy-note a:hover {
  border-bottom-color: var(--color-accent-blue);
}

/* Honeypot-Feld: für Menschen unsichtbar (kein display:none — das würde
   von einigen einfachen Spam-Bots gezielt umgangen), bleibt aber
   technisch im DOM vorhanden. */
.contact-form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}