/* ==========================================================================
   MAcontrol — landing page
   Dark industrial theme · Siemens PLC/HMI
   ========================================================================== */

:root {
  --bg: #101418;
  --bg-alt: #0D1114;
  --bg-deep: #0B0F12;
  --panel: #151A20;
  --panel-alt: #12171C;
  --text: #E8EBEE;
  --text-soft: #C7CDD3;
  --muted: #9AA4AD;
  --faint: #5A646D;
  --steel: #C7CDD3;
  --accent: #00E676;
  --accent-hover: #5CF29E;
  --error: #FF6E6E;
  --border: rgba(255, 255, 255, .07);
  --border-strong: rgba(255, 255, 255, .1);
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* --- Animations ------------------------------------------------------- */

@keyframes ledblink {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

/* obrázok je o 12 % vyšší než rám — translateY(-10.7 %) z vlastnej výšky = presne ten presah */
@keyframes heropan {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10.7%); }
}

@keyframes ctapulse {
  0%, 80%, 100% { box-shadow: 0 0 0 0 rgba(0, 230, 118, 0); filter: brightness(1); }
  86% { box-shadow: 0 0 0 8px rgba(0, 230, 118, .3); filter: brightness(1.3); }
  96% { box-shadow: 0 0 0 18px rgba(0, 230, 118, 0); filter: brightness(1); }
}

.heropan { animation: heropan 18s ease-in-out infinite; will-change: transform; }
.ctapulse { animation: ctapulse 7s ease-in-out infinite; }
.led { animation: ledblink 2.4s infinite; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .heropan, .ctapulse, .led, .ref-map img { animation: none; }
  .hero-frame .heropan { height: 100%; }
}

/* --- Logo ------------------------------------------------------------- */

.logo { display: flex; align-items: center; gap: 12px; color: var(--text); }
.logo:hover { color: var(--text); }

.logo-mark {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 2.5px solid var(--steel);
  flex: none;
}

.logo-mark-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.5px;
  color: var(--text);
}

.logo-led {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 5px;
  height: 5px;
  background: var(--accent);
}

.logo-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.3px;
}

.logo--small .logo-mark { width: 30px; height: 30px; border-width: 2px; border-color: var(--faint); }
.logo--small .logo-mark-text { font-size: 11px; color: var(--muted); }

/* --- Header / nav ------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(16, 20, 24, .88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  padding-top: 14px;
  padding-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-nav { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }

/* padding drží hit target ~44 px pri zachovaní vizuálu */
.navlink { color: var(--muted); font-size: 14px; transition: color .2s; padding: 13px 4px; margin: -13px -4px; }
.navlink:hover { color: var(--accent); }

/* --- Language switch ---------------------------------------------------- */

.lang-switch { display: flex; align-items: center; gap: 10px; }

.lang-flag {
  display: block;
  line-height: 0;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 2px;
  overflow: hidden;
  opacity: .5;
  transition: opacity .2s, border-color .2s;
  /* padding drží hit target pri malej vlajke */
  padding: 12px 4px;
  margin: -12px -4px;
  border-width: 0;
}

.lang-flag svg {
  display: block;
  width: 22px;
  height: 15px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 2px;
  box-sizing: content-box;
}

.lang-flag:hover { opacity: .9; }

.lang-flag.active { opacity: 1; }
.lang-flag.active svg { border-color: rgba(0, 230, 118, .55); }

/* --- Buttons ----------------------------------------------------------- */

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--bg-deep);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 15px 32px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: filter .2s;
}
.btn:hover { filter: brightness(1.12); color: var(--bg-deep); }

.btn--nav { font-size: 14px; padding: 9px 18px; }

/* --- Sections ----------------------------------------------------------- */

section { border-bottom: 1px solid var(--border); }
section > .container { padding-top: 80px; padding-bottom: 80px; }

.section--alt { background: var(--bg-alt); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -1px;
  margin: 0 0 10px;
  text-wrap: pretty;
}

.section-lead { color: var(--muted); font-size: 17px; margin: 0 0 44px; }

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

.hero { background: linear-gradient(180deg, #12171C 0%, #101418 100%); }

.hero .container {
  padding-top: 72px;
  padding-bottom: 80px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 56px;
}

.hero-copy { flex: 1 1 480px; min-width: 300px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--accent);
  border: 1px solid rgba(0, 230, 118, .3);
  padding: 5px 12px;
  border-radius: 3px;
  margin-bottom: 26px;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: -1.5px;
  margin: 0 0 22px;
  text-wrap: pretty;
}

.accent-dot { color: var(--accent); }

.hero-sub {
  font-size: 18px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 34px;
  max-width: 560px;
  text-wrap: pretty;
}

.hero-cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

.hero-cta-note { font-family: var(--font-mono); font-size: 13px; color: var(--faint); }

.hero-visual { flex: 1 1 420px; min-width: 300px; max-width: 600px; }

.hero-frame {
  position: relative;
  border: 1px solid var(--border-strong);
  background: var(--bg-deep);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.hero-frame img {
  width: 100%;
  height: 112%;
  object-fit: cover;
  object-position: 50% 0%;
  filter: saturate(.9);
}

.hero-vignette {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 90px 30px rgba(16, 20, 24, .75);
  pointer-events: none;
}

.hero-caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
  background: rgba(11, 15, 18, .8);
  padding: 5px 10px;
  border: 1px solid rgba(255, 255, 255, .12);
}

/* --- Cards --------------------------------------------------------------- */

.hovcard { transition: border-color .25s, transform .25s, box-shadow .25s; }
.hovcard:hover {
  border-color: rgba(0, 230, 118, .55) !important;
  box-shadow: 0 0 0 1px rgba(0, 230, 118, .2), 0 10px 28px rgba(0, 0, 0, .35);
  transform: translateY(-2px);
}
.hovcard .hovtitle { transition: color .25s; }
.hovcard:hover .hovtitle { color: var(--accent); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.card-grid--wide { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-num { font-family: var(--font-mono); font-size: 13px; color: var(--accent); }

.card-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -.3px;
  text-wrap: pretty;
}

.card-text { color: var(--muted); font-size: 15px; line-height: 1.55; text-wrap: pretty; }

.card-tag { display: flex; align-items: center; gap: 10px; }

.card-tag .dot { width: 8px; height: 8px; background: var(--accent); flex: none; }

.card-tag span:last-child {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.card--ref .card-title { font-size: 18px; }

/* --- Mapa realizácií -------------------------------------------------------- */

.ref-map {
  margin: 0 auto;
  max-width: 900px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: var(--bg-deep);
  overflow: hidden;
}

.ref-map img {
  width: 100%;
  height: auto;
  animation: mapzoom 20s ease-in-out infinite;
  will-change: transform;
}

@keyframes mapzoom {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

.ref-map figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding: 10px 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  text-align: center;
}

/* --- Technológie ---------------------------------------------------------- */

.section--tech > .container { padding-top: 64px; padding-bottom: 64px; }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border: 1px solid rgba(255, 255, 255, .08);
}

.tech-cell {
  padding: 24px 22px;
  border: 1px solid rgba(255, 255, 255, .05);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tech-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.tech-items { font-size: 15px; line-height: 1.55; color: var(--text-soft); }

/* --- Case study ------------------------------------------------------------ */

.case-text {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
  max-width: 820px;
  margin: 0 0 44px;
  text-wrap: pretty;
}

.case-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.case-gallery figure {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .08);
  background: var(--bg-deep);
  overflow: hidden;
}

.case-gallery .case-img { aspect-ratio: 4 / 3; overflow: hidden; }

.case-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85);
}

.case-gallery figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding: 10px 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.case-note { font-family: var(--font-mono); font-size: 12px; color: var(--faint); margin: 24px 0 0; }

/* --- Prečo ja ---------------------------------------------------------------- */

.why .container {
  padding-top: 80px;
  padding-bottom: 80px;
  display: flex;
  flex-wrap: wrap;
  gap: 56px;
  align-items: center;
}

.why-photo { flex: 0 1 340px; min-width: 260px; }

.why-photo-frame {
  border: 1px solid var(--border-strong);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: var(--bg-deep);
}

.why-photo-frame img { width: 100%; height: 100%; object-fit: cover; }

.why-copy { flex: 1 1 420px; min-width: 300px; }

.why-copy h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: -1px;
  margin: 0 0 8px;
}

.why-quote {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 17px;
  color: var(--accent);
}

.why-points { display: flex; flex-direction: column; gap: 22px; margin: 24px 0 32px; }

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

.why-badge {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  border: 1px solid rgba(0, 230, 118, .35);
  padding: 5px 9px;
  min-width: 44px;
  text-align: center;
}

.why-point-title { font-weight: 600; font-size: 16.5px; margin-bottom: 4px; }

.why-point-text { color: var(--muted); font-size: 15px; line-height: 1.5; }

/* --- Kontakt ------------------------------------------------------------------ */

.contact-layout { display: flex; flex-wrap: wrap; gap: 48px; }

.contact-form-col { flex: 1 1 440px; min-width: 300px; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.form-field { display: flex; flex-direction: column; gap: 6px; }

.form-field label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.form-field input,
.form-field textarea {
  background: var(--bg-deep);
  border: 1px solid rgba(255, 255, 255, .14);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 13px 14px;
  border-radius: 2px;
}

.form-field textarea { resize: vertical; }

input::placeholder,
textarea::placeholder { color: var(--faint); }

input:focus,
textarea:focus { outline: none; border-color: var(--accent) !important; }

.form-field input.invalid,
.form-field textarea.invalid { border-color: var(--error); }

.form-gdpr {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.5;
}

.form-gdpr input {
  margin: 2px 0 0;
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  flex: none;
}

.form-error {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--error);
}

.form-error[hidden] { display: none; }

.contact-form .btn { align-self: flex-start; }

.form-success {
  border: 1px solid rgba(0, 230, 118, .4);
  background: rgba(0, 230, 118, .06);
  padding: 28px 26px;
}

.form-success[hidden] { display: none; }

.form-success-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 19px;
  color: var(--accent);
  margin-bottom: 8px;
}

.form-success-text { color: var(--text-soft); font-size: 15px; line-height: 1.55; }

.contact-info-col { flex: 0 1 320px; min-width: 260px; }

.contact-info {
  border: 1px solid rgba(255, 255, 255, .08);
  background: var(--panel-alt);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--faint);
  letter-spacing: 1px;
  margin-bottom: 5px;
}

.contact-info a { font-size: 15.5px; }

.contact-info .plain { font-size: 15.5px; color: var(--text-soft); }

/* --- Päta ---------------------------------------------------------------------- */

.site-footer { background: var(--bg-deep); }

.site-footer .container {
  padding-top: 36px;
  padding-bottom: 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.footer-brand .note { font-size: 13.5px; color: var(--muted); }

.footer-links { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }

.footer-links a { font-size: 13.5px; color: var(--muted); }
.footer-links a:hover { color: var(--accent); }

.footer-copy { font-family: var(--font-mono); font-size: 12.5px; color: var(--faint); }

/* --- Podstránka (GDPR) ----------------------------------------------------------- */

.subpage-header { position: static; }

.subpage-header .container,
.subpage-main,
.subpage-footer .container { max-width: 820px; }

.subpage-back { font-size: 14px; color: var(--muted); }
.subpage-back:hover { color: var(--accent); }

.subpage-main {
  margin: 0 auto;
  padding: 64px 24px 96px;
}

.subpage-main h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -1px;
  margin: 0 0 40px;
}

.gdpr-blocks { display: flex; flex-direction: column; gap: 28px; }

.gdpr-block { border-left: 2px solid rgba(255, 255, 255, .12); padding-left: 18px; }

.gdpr-block h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -.2px;
  margin: 0 0 8px;
}

.gdpr-block p,
.gdpr-outro { color: var(--muted); font-size: 15.5px; line-height: 1.65; margin: 0; text-wrap: pretty; }

.subpage-footer { background: var(--bg-deep); border-top: 1px solid var(--border); }

.subpage-footer .container {
  padding-top: 28px;
  padding-bottom: 28px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.subpage-footer .operator { font-size: 13.5px; color: var(--muted); }

/* --- Mobile -------------------------------------------------------------------- */

@media (max-width: 640px) {
  section > .container { padding-top: 56px; padding-bottom: 56px; }
  .hero .container { padding-top: 48px; padding-bottom: 56px; gap: 36px; }
  .why .container { gap: 36px; }
  .site-nav { gap: 14px; }
  .logo-name { font-size: 17px; }
}