html {
  font-size: 18px;
  scroll-behavior: smooth;
}

:root {
  --base: 1rem;
  --gap: 50px;
  --text-color: #191919;
}

.container {
  width: 80vw;
  margin-inline: auto;
}

/* === LAYOUT FIX PRO FOOTER === */
html,
body {
  height: 100%;
}

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

body {
  font-family: "Inter Tight", sans-serif;
  font-size: var(--base);
  line-height: 1.4;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
}

main {
  flex: 1;
}
/* === END LAYOUT FIX === */

p {
  font-size: 1rem;
  font-weight: 400;
}

h1 {
  font-size: clamp(3rem, 5vw, 5.5rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(2.2rem, 4.5vw, 4.6rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.9rem, 3vw, 3rem);
  font-weight: 500;
}

h4 {
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  font-weight: 500;
}

h5 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  font-weight: 500;
}

h6 {
  font-size: clamp(1.2rem, 1.6vw, 1.5rem);
  font-weight: 400;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: #fffffa;

  padding-block: 1rem;
  display: flex;
  align-items: center;

  transition: transform 0.3s ease, opacity 0.3s ease;
}

header.hidden {
  opacity: 0;
  pointer-events: none;
}

header .logo {
  font-weight: 600;
  flex-shrink: 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
}

.logo:hover,
.logo:focus,
.logo:active,
.logo:visited {
  color: var(--text-color);
  text-decoration: none;
}

/* ===== MAIN NAVIGATION ===== */

.menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.menu a {
  font-size: 1rem;
  text-decoration: none;
  font-weight: 500;
  color: var(--text-color);
}

.menu .cta {
  border: 1px solid #000;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-weight: 500;
}

/* hamburger – default hidden */
.hamburger {
  position: relative;
  z-index: 1000;
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  color: #191919;
}

.hamburger svg {
  width: 100%;
  height: 100%;
  display: block;
  fill: currentColor;
}

.hamburger {
  color: #191919;
}

/* ===== MOBILE FULLSCREEN MENU ===== */
.menu.fullscreen {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100dvh;
  background: #fffffa;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  z-index: 1000;
}

.menu.fullscreen a {
  font-size: 1.4rem; /* bylo 2rem */
}

.menu.fullscreen .cta {
  border: none;
}

/* aktivní mobilní menu */
.menu.fullscreen.active {
  display: flex;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 990px) {
  .menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* HERO */
#uvod .hero {
  padding-top: 6rem;
}

#uvod h1 {
  line-height: 1.05;
  font-size: clamp(4.5rem, 7.5vw, 9.3rem);
  font-style: italic;
}

#uvod h5 {
  font-size: clamp(1.4rem, 2vw, 1.9rem);
  margin-bottom: 3rem;
}

/* TITULKY */
.hero-title-left {
  margin: 0;
  white-space: nowrap;
}

.hero-title-center {
  margin-top: 0.1rem;
  text-align: center;
}

/* 2 SLOUPCE POD ARCHITEKTURY */
.hero-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 3rem;
}

.hero-col-right h5 {
  margin: 0;
  max-width: 60ch;
  text-align: left;
}

/* FOOTER */
footer {
  background: var(--text-color);
  color: #fffffa;
}

footer .container {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: center;
}

footer p {
  margin: 0;
  font-size: 1rem;
}

/* MEZERA MEZI SEKCEMI */
section {
  padding: 9rem 0;
}

/* ===== PROJECT SPACING ===== */
.project--spaced {
  margin: 6rem 0;
}

/* === SWIPER FIX (FREEFRONTEND + TVŮJ ORIGINÁL) === */

/* layout wrapper – žádný swiper init tady */
.project-gallery {
  position: relative;
  width: 100%;
  margin-top: 2.5rem;
  isolation: isolate;
}

/* skutečný swiper viewport */
.project-swiper {
  position: relative;
  width: 100%;
  overflow: hidden; /* KRITICKÉ */
}

/* swiper internals */
.project-swiper .swiper-wrapper {
  align-items: stretch;
}

.project-swiper .swiper-slide {
  flex-shrink: 0; /* POVINNÉ */
  aspect-ratio: 3 / 4; /* ZACHOVÁNÍ POMĚRU */
}

/* obrázky */
.project-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ZABÍT DEFAULT SWIPER UI */
.swiper-button-next::after,
.swiper-button-prev::after {
  display: none;
}

/* === GALERIE – ŠIPKY (INSPIROVÁNO PŮVODNÍM VZHLEDEM) === */

.project-swiper .gallery-arrow {
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto 0;

  width: 48px;
  height: 48px;
  transform: translateY(10px);

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 30;
  color: #fffffa;
  pointer-events: auto;
}

/* SVG */
.project-gallery .gallery-arrow svg {
  width: 100%;
  height: 100%;
  display: block;
  fill: currentColor;

  /* stejný feel jako původní */
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.6));
}

.menu a {
  position: relative;
}

.menu a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease;
}

.vr-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-top: 3rem;
  border-radius: 16px;
  overflow: hidden;
}

.vr-wrapper iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.vr-cta {
  margin-top: 4rem;
  text-align: center;
}

.vr-cta h5 {
  margin-bottom: 1.5rem;
}

.cta-button {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border: 1px solid #000;
  border-radius: 4px;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-color);
  transition: background 0.2s ease, color 0.2s ease;
}

.cta-button:hover {
  background: #000;
  color: #fffffa;
}

/* === CTA BUTTON – NORMALIZACE PRO <button> === */
button.cta-button {
  all: unset; /* smaže browser defaulty */
  display: inline-block;
  font-family: inherit;
  font-size: inherit;
  font-weight: 500;
  line-height: normal;
  padding: 0.75rem 1.75rem;
  border: 1px solid #000;
  border-radius: 4px;
  color: var(--text-color);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

/* hover – STEJNÉ JAKO <a> */
button.cta-button:hover {
  background: #000;
  color: #fffffa;
}

/* disabled stav – funguje pro button */
button.cta-button:disabled,
button.cta-button.is-disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.hero-image::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;

  background: linear-gradient(
    to bottom,
    #fffffa 0%,
    rgba(255, 255, 250, 0.85) 30%,
    rgba(255, 255, 250, 0) 100%
  );

  pointer-events: none;
  z-index: 2;
}

.hero-image {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* SEKCE O MNĚ + FOTKA */

.about-grid {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap; /* KLÍČ */
}

/* LEVÝ / PRAVÝ SLOUPEC */
.about-photo,
.about-content {
  flex: 1 1 520px; /* jakmile není místo → padá dolů */
  min-height: clamp(420px, 45vw, 560px); /* STEJNÁ VÝŠKA */
}

/* FOTO */
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* TEXT */
.about-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* BOX */
.about-box:not(:last-child) {
  margin-bottom: 3rem;
}

.about-box h5 {
  margin-bottom: 1.25rem;
}

.about-box h6 {
  line-height: 1.6;
}

.section-intro {
  margin-bottom: 5rem;
}

/*FORMULÁŘ A KONTAKT SEKCE */
/* oddělení sekce */
.section-divider {
  width: 100%;
  height: 2px;
  background: var(--text-color);
  opacity: 0.85;
  margin-bottom: 6rem;
}

/* grid kontaktu */
.contact-grid {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.contact-left,
.contact-right {
  flex: 1 1 420px;
}

/* levá strana */
.contact-left h4 {
  margin-bottom: 3rem;
}

.contact-info .contact-item:not(:last-child) {
  margin-bottom: 2rem;
}

/* formulář */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
}

/* inputy */
.contact-form input,
.contact-form textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.9rem 0.75rem;
  border: none;
  border-bottom: 1px solid var(--text-color);
  background: transparent;
  color: var(--text-color);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-bottom-width: 2px;
}

/* placeholder */
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  color: rgba(25, 25, 25, 0.55);
}

/* honeypot */
.contact-form input[name="company"] {
  position: absolute;
  left: -9999px;
}

/* disabled stav – JEN když to přidá JS */
.contact-form .cta-button.is-disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* success message */
.form-success {
  display: none;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
  color: #1a7f37;
  opacity: 0;
  transition: opacity 0.6s ease;
  position: relative;
  pointer-events: none;
}

.form-success.is-visible {
  display: flex;
  opacity: 1;
}

.form-success.fade-out {
  opacity: 0;
}

.success-icon {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.contact-form .cta-button {
  align-self: flex-end;
}

.contact-form .cta-button.is-disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.contact-socials a {
  text-decoration: none;
  color: var(--text-color);
}

.contact-socials h6 {
  font-weight: 400;
  position: relative;
}

.contact-socials h6::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.25s ease;
}

.contact-socials a:hover h6::after {
  width: 100%;
}

.contact-socials {
  margin-top: 7rem;
  margin-bottom: 0;
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}

#kontakt {
  padding-bottom: 2rem;
}

/* ==================================================
   RESPONSIVE BREAKPOINTS – CLEAN VERSION
   ================================================== */

/* ===== TABLET + MOBILE ===== */
@media (max-width: 990px) {
  /* header */
  header {
    height: 74px;
  }

  /* HERO */
  #uvod h1 {
    font-size: clamp(1.6rem, 8vw, 4.2rem);
  }

  #uvod h5 {
    font-size: clamp(1.1rem, 4.5vw, 1.6rem);
    line-height: 1.6;
    margin-bottom: 2rem;
  }

  .hero-title-center {
    text-align: left;
  }

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

  .hero-col-right {
    margin-top: 2rem;
  }

  /* SEKCE – JEDNOTNÝ RYTMUS */
  section {
    padding: 4rem 0;
  }

  section h2 {
    margin-bottom: 1.25rem;
  }

  section h6 {
    line-height: 1.6;
    margin-bottom: 1.6rem;
  }

  /* HERO IMAGE */
  .hero-image::before {
    height: 30px;
  }

  /* VR – jen poměr, žádný spacing */
  .vr-wrapper {
    aspect-ratio: 3 / 4;
  }
}

/* ===== MOBILE ONLY ===== */
@media (max-width: 600px) {
  /* about */
  .about-photo,
  .about-content {
    min-height: auto;
  }

  /* socials */
  .contact-socials {
    margin-top: 4rem;
    gap: 1.5rem;
  }

  /* GALERIE – MENŠÍ ŠIPKY */
  .project-gallery .gallery-arrow {
    width: 28px;
    height: 28px;
  }
}

/* TELEFON – ZABÍT AUTO LINK STYLY */
.contact-info h6 {
  text-decoration: none;
  color: inherit;
}

.contact-mail {
  color: inherit;
  text-decoration: none;
}