/* ==========================================================================
   PAVEL HORÁK — main.css
   Layout komponenty: header, nav, footer, sticky CTA
   Vyžaduje: css/design-system.css (musí být importován před tímto souborem)
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   SITE HEADER
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* --------------------------------------------------------------------------
   NAVIGACE
   -------------------------------------------------------------------------- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  gap: var(--space-6);
}

/* Logo */
.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 36px;
  width: auto;
}

/* Nav links (desktop) */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}

.nav-links li a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-links li a:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-links li a.active {
  color: var(--color-accent);
}

/* Nav CTA tlačítko */
.nav-cta {
  background-color: var(--color-accent) !important;
  color: var(--color-primary-darker) !important;
  padding: var(--space-2) var(--space-5) !important;
  border-radius: var(--btn-radius) !important;
  font-weight: var(--font-weight-semibold) !important;
  font-size: var(--text-sm) !important;
  transition: background-color var(--transition-fast), transform var(--transition-fast) !important;
  margin-left: var(--space-2);
}

.nav-cta:hover {
  background-color: var(--color-accent-hover) !important;
  transform: translateY(-1px);
}

/* Hamburger button (skrytý na desktopu) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}

.nav-hamburger:hover {
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

/* Hamburger animace — otevřeno */
.nav-open .nav-hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-open .nav-hamburger span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-open .nav-hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   MOBILNÍ NAVIGACE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: var(--space-1);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
  }

  .nav-open .nav-links {
    display: flex;
  }

  .nav-links li a {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    border-radius: var(--radius-md);
  }

  .nav-cta {
    margin-left: 0 !important;
    text-align: center;
    margin-top: var(--space-2);
  }

  /* Domů — zobrazit jen v mobilním hamburgeru */
  .nav-home-item { display: list-item; }
}

/* Domů — skrýt na desktopu (logo slouží jako home) */
.nav-home-item { display: none; }

/* --------------------------------------------------------------------------
   HLAVNÍ OBSAH
   -------------------------------------------------------------------------- */
.site-main {
  min-height: calc(100vh - var(--nav-height));
}

/* Na mobilu odsunutí od sticky CTA */
@media (max-width: 768px) {
  .site-main {
    padding-bottom: calc(var(--sticky-cta-height) + var(--space-2));
  }
}

/* --------------------------------------------------------------------------
   PATIČKA
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) var(--container-padding) var(--space-8);
}

@media (max-width: 768px) {
  .site-footer {
    padding-bottom: calc(var(--sticky-cta-height) + var(--space-8));
  }
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: var(--space-12);
  max-width: var(--container-max);
  margin: 0 auto var(--space-10);
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

.footer-brand img {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-3);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.footer-links h4,
.footer-contact h4 {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links ul li a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.footer-contact p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.footer-contact a:hover {
  color: var(--color-accent);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer-social a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-bottom p,
.footer-bottom a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

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

/* --------------------------------------------------------------------------
   STICKY CTA (pouze mobil)
   -------------------------------------------------------------------------- */
.sticky-cta {
  display: none;
}

@media (max-width: 768px) {
  .sticky-cta {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--sticky-cta-height);
    background-color: var(--color-bg-dark-2);
    border-top: 1px solid var(--color-border);
    z-index: var(--sticky-cta-z);
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
    /* Safe area pro iPhony s notchem */
    padding-bottom: max(var(--space-2), env(safe-area-inset-bottom));
  }
}

.sticky-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  flex: 1;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
}

.sticky-cta-call {
  background-color: var(--color-bg-dark-3);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.sticky-cta-call:hover {
  background-color: var(--color-border);
}

.sticky-cta-meeting {
  background-color: var(--color-accent);
  color: var(--color-primary-darker);
}

.sticky-cta-meeting:hover {
  background-color: var(--color-accent-hover);
}

/* --------------------------------------------------------------------------
   UTILITY TŘÍDY — sdílené napříč stránkami
   -------------------------------------------------------------------------- */

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Section padding */
.section {
  padding: var(--section-padding-y) var(--container-padding);
}

/* Oddělovač mezi sekcemi — zabraňuje splývání tmavých pozadí */
.section + .section,
.section + section,
section + .section {
  border-top: 1px solid var(--color-border);
}

.section--dark {
  background-color: var(--color-bg-dark-2);
}

.section--card {
  background-color: var(--color-bg-dark-3);
}

/* Typografie utility */
.text-accent { color: var(--color-accent); }
.text-muted  { color: var(--color-text-muted); }
.text-center { text-align: center; }

/* Tlačítka (obecné) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--btn-padding-md);
  border-radius: var(--btn-radius);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: none;
  white-space: nowrap;
  text-decoration: none;
}

.btn:active {
  transform: translateY(0) !important;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-primary-darker);
  box-shadow: 0 2px 8px rgba(201, 168, 76, 0.25);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.35);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.06);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.btn--lg {
  padding: var(--btn-padding-lg);
  font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   SCROLL REVEAL ANIMACE
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   SCROLL REVEAL — obousměrné, intenzivní
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(64px) scale(0.97);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.40s; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   CARD HOVER — zlatá záře + glow na všech kartách
   -------------------------------------------------------------------------- */
.advantage-card,
.benefit-card,
.value-card,
.step,
.argument-point,
.proof-item,
.article-card,
.kp-card,
.service-card,
.review-card,
.interest-item,
.calc-card,
.reality-card,
.partner-card {
  transition: border-color var(--transition-fast),
              box-shadow 0.3s cubic-bezier(0.22, 0.61, 0.36, 1),
              opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* Hover efekt pouze na zařízeních s myší — nespouští se na dotyku */
@media (hover: hover) and (pointer: fine) {
  .advantage-card:hover,
  .benefit-card:hover,
  .value-card:hover,
  .step:hover,
  .article-card:hover,
  .kp-card:hover,
  .service-card:hover,
  .review-card:hover,
  .interest-item:hover,
  .calc-card:hover,
  .reality-card:hover,
  .partner-card:hover {
    border-color: rgba(201, 168, 76, 0.45);
    box-shadow: 0 0 0 1px rgba(201, 168, 76, 0.18),
                0 8px 36px rgba(201, 168, 76, 0.12),
                0 4px 12px rgba(0, 0, 0, 0.28);
  }
}

/* --------------------------------------------------------------------------
   AMBIENT BLOBS — jemná zlatá záře v hero sekcích
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  overflow: hidden;
}

.page-hero::before,
.page-hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.page-hero::before {
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(201, 168, 76, 0.14) 0%, transparent 68%);
  top: -180px;
  right: 0%;
  animation: blobDrift1 14s ease-in-out infinite;
}

.page-hero::after {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(201, 168, 76, 0.09) 0%, transparent 68%);
  bottom: -120px;
  left: 3%;
  animation: blobDrift2 18s ease-in-out infinite;
}

@keyframes blobDrift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  30%       { transform: translate(40px, -50px) scale(1.07); }
  65%       { transform: translate(-25px, 30px) scale(0.94); }
}

@keyframes blobDrift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  40%       { transform: translate(-35px, 40px) scale(1.1); }
  70%       { transform: translate(30px, -20px) scale(0.93); }
}

@media (prefers-reduced-motion: reduce) {
  .page-hero::before,
  .page-hero::after {
    animation: none;
  }
}