/* ============================================================
   ARG Stavby — Landing Page
   Font:   Poppins 400 / 600 / 700 / 800
   Colors:
     --dark    #200c0c   dark section backgrounds
     --text    #272924   body text (only)
     --red     #bb2b2b   accent / CTA
     --light   #f4f4f4   light section backgrounds
     --white   #ffffff
============================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-poppins), sans-serif;
  font-size: 16px;
  color: #272924;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

/* ---------- VARIABLES ---------- */
:root {
  --dark:    #200c0c;
  --dark2:   #180808;
  --text:    #272924;
  --red:     #bb2b2b;
  --light:   #f4f4f4;
  --white:   #ffffff;
  --muted:   rgba(255,255,255,0.45);
  --max-w:   1360px;
  --px:      48px;
}

/* ---------- LAYOUT ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-left: var(--px);
  padding-right: var(--px);
}

.section {
  padding: 104px 0;
}

.section--light { background: var(--light); }
.section--dark  { background: var(--dark); }
.section--dark2 { background: var(--dark2); }

/* ---------- TYPOGRAPHY SYSTEM ---------- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 18px;
}

.section-tag--light {
  color: rgba(255,255,255,0.55);
}

.section-heading {
  font-size: 42px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.08;
  margin-bottom: 0;
}

.section-heading--light {
  color: var(--white);
}

.section-heading em {
  font-style: normal;
  font-weight: 400;
}

/* Red accent bar below headings */
.heading-bar {
  width: 48px;
  height: 3px;
  background: var(--red);
  margin: 20px 0 32px;
  flex-shrink: 0;
}

.section-header {
  margin-bottom: 56px;
}

.section-lead {
  font-size: 17px;
  font-weight: 400;
  color: #555;
  line-height: 1.7;
  max-width: 620px;
  margin-top: -16px;
}

.section-lead--light {
  color: rgba(255,255,255,0.55);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  font-family: var(--font-poppins), sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: none;
  transition: background 0.4s ease-in-out, color 0.4s ease-in-out,
              opacity 0.4s ease-in-out, transform 0.4s ease-in-out;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--red {
  background: var(--red);
  color: var(--white);
}
.btn--red:hover { background: #a52626; }

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.7);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
}

.btn--outline-dark {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--text);
}
.btn--outline-dark:hover {
  background: var(--text);
  color: var(--white);
}

.btn--white {
  background: var(--white);
  color: var(--text);
}
.btn--white:hover { background: #ececec; }

.btn-group {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* ============================================================
   HEADER
============================================================ */
.header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 80px;
}

.header__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
  gap: 32px;
}

.header__logo {
  justify-self: start;
}

.header__right {
  justify-self: end;
}

.header__logo-img {
  height: 32px;
  width: auto;
  object-fit: contain;
  /* Fallback if image not loaded: show nothing cleanly */
}

.header__nav {
  display: flex;
  gap: 36px;
  justify-self: center;
}

.header__nav a {
  font-size: 16px;
  font-weight: 400;
  color: var(--white);
  position: relative;
  transition: color 0.4s ease-in-out;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--red);
  transition: width 0.4s ease-in-out;
}

.header__nav a:hover::after {
  width: 100%;
}

.header__right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__contact {
  display: flex;
  gap: 0;
  align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 0 4px;
}

.header__contact-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  padding: 6px 12px;
  white-space: nowrap;
  transition: color 0.4s ease-in-out, background 0.4s ease-in-out;
}

.header__contact-item + .header__contact-item {
  border-left: 1px solid rgba(255,255,255,0.15);
}

.header__contact-item svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.header__contact-item:hover {
  color: var(--red);
  background: rgba(255,255,255,0.06);
}

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  height: 800px;
  background: var(--dark);
  background-image: url('/img/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Dark overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(32, 12, 12, 0.78) 0%,
    rgba(32, 12, 12, 0.45) 60%,
    rgba(32, 12, 12, 0.15) 100%
  );
  z-index: 1;
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }

.hero__inner {
  position: relative;
  z-index: 2;
  padding-left: 148px;
  width: 1360px;
}

.hero__content {
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero__eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin-bottom: 18px;
}

.hero__title {
  font-size: 80px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.0;
  white-space: nowrap;
  margin-bottom: 28px;
  text-shadow: 0 2px 40px rgba(0,0,0,0.3);
}

.hero__desc {
  font-size: 17px;
  font-weight: 400;
  color: rgba(255,255,255,0.88);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 500px;
}

/* Scroll indicator */
.hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

/* ============================================================
   O NÁS
============================================================ */
.onas__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.onas__left {
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 100px;
}

.onas__left .section-heading {
  margin-bottom: 0;
}

.onas__body {
  font-size: 16px;
  font-weight: 400;
  color: #666;
  line-height: 1.8;
}

.onas__pillars {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pillar {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 28px 0;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: background 0.2s;
}

.pillar:first-child {
  border-top: 1px solid rgba(0,0,0,0.08);
}

.pillar__num {
  font-size: 13px;
  font-weight: 800;
  color: var(--red);
  letter-spacing: 0.1em;
  min-width: 28px;
  margin-top: 3px;
}

.pillar__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.pillar__desc {
  font-size: 15px;
  font-weight: 400;
  color: #666;
  line-height: 1.6;
}

/* ============================================================
   CO UMÍME
============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.service-card {
  background: rgba(255,255,255,0.035);
  border-top: 3px solid transparent;
  padding: 44px 36px 40px;
  display: flex;
  flex-direction: column;
  transition: background 0.4s ease-in-out, border-color 0.4s ease-in-out;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
}

.service-card:hover {
  background: rgba(255,255,255,0.06);
  border-top-color: var(--red);
}

.service-card__icon {
  margin-bottom: 20px;
}

.service-card__title {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 14px;
  line-height: 1.2;
}

.service-card__desc {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255,255,255,0.58);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
}

.service-card__list li {
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.service-card__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--red);
  font-weight: 700;
  font-size: 11px;
  top: 2px;
}

/* ============================================================
   JAK PRACUJEME
============================================================ */
.steps__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.step-card {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.07);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.4s ease-in-out;
}

.step-card::before {
  content: attr(data-step-num, "");
  position: absolute;
  bottom: -10px;
  right: 20px;
  font-size: 80px;
  font-weight: 800;
  color: rgba(0,0,0,0.04);
  line-height: 1;
  pointer-events: none;
}

.step-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  z-index: 1;
}

.step-card__num {
  font-size: 32px;
  font-weight: 800;
  color: var(--red);
  margin-bottom: 16px;
  display: block;
  line-height: 1;
}

.step-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 10px;
}

.step-card__desc {
  font-size: 15px;
  font-weight: 400;
  color: #777;
  line-height: 1.65;
}

/* ============================================================
   PROČ ARG – SROVNÁNÍ
============================================================ */
.comparison {
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.07);
}

.comparison__row {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.3fr;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.2s;
}

.comparison__row:last-child { border-bottom: none; }

.comparison__row--head {
  background: rgba(255,255,255,0.05);
}

.comparison__row:not(.comparison__row--head):hover {
  background: rgba(255,255,255,0.025);
}

.comparison__cell {
  padding: 18px 28px;
  font-size: 15px;
  border-right: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
}

.comparison__cell:last-child { border-right: none; }

.comparison__row--head .comparison__cell {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-top: 20px;
  padding-bottom: 20px;
}

.comparison__cell--crit {
  font-weight: 600;
  color: rgba(255,255,255,0.65);
}

.comparison__row--head .comparison__cell--crit {
  color: rgba(255,255,255,0.4);
}

.comparison__cell--other {
  color: rgba(255,255,255,0.28);
  font-style: italic;
}

.comparison__row--head .comparison__cell--other {
  font-style: normal;
  color: rgba(255,255,255,0.35);
}

.comparison__cell--arg {
  color: var(--red);
  font-weight: 600;
  background: rgba(187,43,43,0.06);
}

.comparison__row--head .comparison__cell--arg {
  color: var(--red);
  font-weight: 800;
}

/* ============================================================
   NAŠI TAHOUNI – VYBAVENÍ
============================================================ */
.equipment__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.equipment-card {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 52px 44px;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
  transition: background 0.4s ease-in-out;
  cursor: default;
}

.equipment-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease-in-out;
}

.equipment-card:hover {
  background: rgba(255,255,255,0.04);
}

.equipment-card:hover::after {
  transform: scaleX(1);
}

.equipment-card__icon {
  display: block;
  transition: transform 0.4s ease-in-out;
}

.equipment-card:hover .equipment-card__icon {
  transform: translateY(-3px);
}

.equipment-card__name {
  font-size: 22px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
}

/* ============================================================
   REFERENCE
============================================================ */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}

.testimonial {
  background: var(--white);
  border: 1px solid rgba(0,0,0,0.07);
  padding: 52px 52px 44px;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.4s ease-in-out;
}

.testimonial:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.09);
  z-index: 1;
}

.testimonial__mark {
  font-size: 80px;
  font-weight: 800;
  color: var(--red);
  line-height: 0.6;
  margin-bottom: 24px;
  opacity: 0.25;
  user-select: none;
  font-family: Georgia, serif;
}

.testimonial__text {
  font-size: 17px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 32px;
}

.testimonial__footer {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial__line {
  width: 32px;
  height: 2px;
  background: var(--red);
  flex-shrink: 0;
}

.testimonial__author {
  font-size: 14px;
  font-weight: 600;
  color: #999;
  letter-spacing: 0.04em;
}

/* ============================================================
   KONTAKT CTA
============================================================ */
.contact {
  background: var(--red);
  padding: 104px 0;
  position: relative;
  overflow: hidden;
}

/* Subtle diagonal texture */
.contact::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 400px;
  height: 400px;
  border: 60px solid rgba(255,255,255,0.04);
  transform: rotate(15deg);
  pointer-events: none;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.contact__left {
  display: flex;
  flex-direction: column;
}

.contact__heading {
  font-size: 48px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.08;
  margin-bottom: 0;
}

.contact__desc {
  font-size: 16px;
  font-weight: 400;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 36px;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact__detail {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.contact__detail:last-child {
  border-bottom: none;
}

.contact__detail-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.contact__detail a,
.contact__detail span:not(.contact__detail-label) {
  font-size: 17px;
  font-weight: 400;
  color: var(--white);
  transition: opacity 0.2s;
}

.contact__detail a:hover { opacity: 0.75; }

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--dark2);
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}

.footer__logo {
  height: 22px;
  width: auto;
  opacity: 0.55;
}

.footer__copy {
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.25);
  text-align: center;
}

.footer__region {
  font-size: 13px;
  font-weight: 400;
  color: rgba(255,255,255,0.2);
}

/* ============================================================
   ANIMATIONS
============================================================ */
.reveal,
.reveal-left {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal-left {
  transform: translateX(-28px);
}

.reveal.visible,
.reveal-left.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE
   Breakpoints:
     lg  ≤ 1200px  — wide tablet / small laptop
     md  ≤  960px  — tablet landscape
     sm  ≤  768px  — tablet portrait
     xs  ≤  480px  — mobile
============================================================ */

/* ---------- 1200px ---------- */
@media (max-width: 1200px) {
  :root {
    --px: 32px;
  }

  .hero__inner {
    padding-left: 80px;
  }

  .hero__title {
    font-size: 68px;
  }

  .section-heading {
    font-size: 36px;
  }

  .contact__heading {
    font-size: 40px;
  }

  .onas__grid {
    gap: 56px;
  }
}

/* ---------- 960px ---------- */
@media (max-width: 960px) {
  :root {
    --px: 28px;
  }

  .section {
    padding: 72px 0;
  }

  /* Header — kompaktnější */
  .header__inner {
    grid-template-columns: auto 1fr auto;
    gap: 16px;
  }

  .header__nav {
    gap: 20px;
  }

  .header__nav a {
    font-size: 15px;
  }

  .header__contact-item {
    font-size: 13px;
    padding: 6px 10px;
  }

  /* Hero */
  .hero__inner {
    padding-left: 48px;
  }

  .hero__title {
    font-size: 60px;
    white-space: normal;
  }

  .hero__content {
    max-width: 500px;
  }

  .hero__desc {
    font-size: 16px;
  }

  /* O nás */
  .onas__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .onas__left {
    position: static;
  }

  /* Co umíme */
  .services__grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  /* Proces */
  .steps__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Proč ARG */
  .comparison__row {
    grid-template-columns: 1fr 1.2fr 1.2fr;
  }

  .comparison__cell {
    padding: 16px 20px;
    font-size: 14px;
  }

  /* Vybavení */
  .equipment__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Reference */
  .testimonials__grid {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  /* Kontakt */
  .contact__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact__heading {
    font-size: 40px;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }

  .footer__copy {
    grid-column: 1 / -1;
    text-align: center;
    order: 3;
  }
}

/* ---------- 768px ---------- */
@media (max-width: 768px) {
  :root {
    --px: 20px;
  }

  .section {
    padding: 60px 0;
  }

  /* Header — skrytý nav, jen logo + kontakt + burger */
  .header__inner {
    grid-template-columns: 1fr auto;
  }

  .header__nav {
    /* mobilní nav je hidden, zobrazí se přes JS s třídou .open */
    display: none;
  }

  .header__contact {
    padding: 0 2px;
  }

  .header__contact-item {
    font-size: 12px;
    padding: 6px 8px;
  }

  /* Hero */
  .hero {
    height: auto;
    min-height: 100svh;
    align-items: flex-end;
    padding-bottom: 64px;
  }

  .hero__inner {
    padding-left: var(--px);
    padding-right: var(--px);
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__title {
    font-size: 52px;
    white-space: normal;
  }

  .hero__eyebrow {
    font-size: 11px;
  }

  .hero__desc {
    font-size: 15px;
  }

  .hero__scroll-hint {
    display: none;
  }

  /* Section headings */
  .section-heading {
    font-size: 30px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  /* O nás pillars */
  .pillar {
    padding: 20px 0 20px 16px;
  }

  /* Co umíme */
  .service-card {
    padding: 32px 24px;
  }

  /* Proces */
  .steps__grid {
    grid-template-columns: 1fr;
  }

  /* Proč ARG — skrýt "Typická firma", ukázat jen Kritérium + ARG */
  .comparison__row {
    grid-template-columns: 1fr 1fr;
  }

  .comparison__cell--other {
    display: none;
  }

  .comparison__row--head .comparison__cell--other {
    display: none;
  }

  /* Vybavení */
  .equipment__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .equipment-card {
    padding: 36px 28px;
    gap: 14px;
  }

  .equipment-card__name {
    font-size: 18px;
  }

  /* Reference */
  .testimonial {
    padding: 36px 28px 32px;
  }

  .testimonial__text {
    font-size: 16px;
  }

  /* Kontakt */
  .contact {
    padding: 72px 0;
  }

  .contact__heading {
    font-size: 36px;
  }

  .contact__desc {
    font-size: 15px;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 12px;
  }

  .footer__logo {
    margin: 0 auto;
  }

  .footer__copy,
  .footer__region {
    text-align: center;
  }
}

/* ---------- 480px ---------- */
@media (max-width: 480px) {
  .section {
    padding: 48px 0;
  }

  /* Hero */
  .hero__title {
    font-size: 44px;
  }

  .btn-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  /* Section headings */
  .section-heading {
    font-size: 26px;
  }

  .section-tag {
    font-size: 11px;
  }

  /* O nás */
  .onas__grid {
    gap: 36px;
  }

  /* Vybavení — 1 sloupec */
  .equipment__grid {
    grid-template-columns: 1fr;
  }

  .equipment-card {
    flex-direction: row;
    align-items: center;
    padding: 24px 20px;
    gap: 20px;
  }

  .equipment-card__icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
  }

  .equipment-card__icon svg {
    width: 40px;
    height: 40px;
  }

  .equipment-card__name {
    font-size: 17px;
  }

  /* Proč ARG — malé obrazovky */
  .comparison__cell {
    padding: 14px 16px;
    font-size: 13px;
  }

  /* Kontakt */
  .contact__heading {
    font-size: 30px;
  }

  /* Pillar */
  .pillar__title {
    font-size: 15px;
  }

  .pillar__desc {
    font-size: 14px;
  }
}

/* ---------- Hamburger menu (768px) — mobilní nav ---------- */
@media (max-width: 768px) {
  /* Mobilní menu tlačítko */
  .header__menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 8px;
  }

  .header__menu-btn span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--white);
    transition: transform 0.4s ease-in-out, opacity 0.4s ease-in-out;
  }

  .header__menu-btn.open span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }

  .header__menu-btn.open span:nth-child(2) {
    opacity: 0;
  }

  .header__menu-btn.open span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  /* Mobilní nav overlay */
  .header__nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: rgba(32, 12, 12, 0.97);
    backdrop-filter: blur(12px);
    justify-content: center;
    align-items: center;
    gap: 0;
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease-in-out;
  }

  .header__nav.open {
    opacity: 1;
    pointer-events: all;
  }

  .header__nav a {
    font-size: 28px;
    font-weight: 700;
    padding: 18px 0;
    color: var(--white);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    width: 240px;
    text-align: center;
  }

  .header__nav a:last-child {
    border-bottom: none;
  }

  .header__nav a::after {
    display: none;
  }
}

@media (min-width: 769px) {
  .header__menu-btn {
    display: none;
  }
}