/* ============================================================
   V3 — Písková
   Vzdušný, zaoblené rohy, jemné stíny
   ============================================================ */
:root {
  --color-primary:       #B8976A;
  --color-primary-dark:  #967750;
  --color-primary-light: #D4BC98;
  --color-accent:        #8A6D4B;
  --color-text:          #1A1512;
  --color-text-muted:    #7A6E62;
  --color-bg:            #FFFFFF;
  --color-bg-alt:        #F5F0EB;
  --color-bg-dark:       #1A1512;
  --color-border:        #E8DFD4;

  --font-sans: 'Plus Jakarta Sans', system-ui, sans-serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.5rem;
  --text-5xl:  3rem;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  --container: 1280px;
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;

  --shadow-sm: 0 1px 4px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-width: 1440px;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2.5rem;
}

.h1 { font-size: var(--text-5xl); font-weight: 700; line-height: 1.15; letter-spacing: -0.025em; }
.h2 { font-size: var(--text-3xl); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
.h3 { font-size: var(--text-xl); font-weight: 600; line-height: 1.35; }
.accent { color: var(--color-primary); }
.perex { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 560px; line-height: 1.7; }

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}
.section-desc { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 560px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.85rem 2rem;
  border-radius: 100px;
  font-size: var(--text-base);
  font-weight: 600;
  transition: all 0.2s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { background: transparent; color: var(--color-primary-dark); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-bg-alt); }
.btn-white { background: #fff; color: var(--color-primary-dark); }
.btn-white:hover { background: var(--color-bg-alt); }

.placeholder-img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  background: var(--color-bg-alt);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: var(--text-xl); font-weight: 700; color: var(--color-text); }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); }
.nav-links a { color: var(--color-text-muted); font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--color-text); }
.nav-back { color: var(--color-text-muted) !important; font-size: var(--text-sm); border-right: 1px solid var(--color-border); padding-right: var(--space-lg); margin-right: calc(-1 * var(--space-xs)); }

/* ── HERO ── */
.hero {
  padding: var(--space-2xl) 0 var(--space-xl);
  text-align: center;
}
.hero .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}
.hero .perex { text-align: center; max-width: 620px; }
.hero-actions { display: flex; gap: var(--space-sm); justify-content: center; }
.hero-visual {
  width: 100%;
  max-width: 960px;
  height: 440px;
  margin-top: var(--space-lg);
}

/* ── SERVICES ── */
.services {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-alt);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
  transition: box-shadow 0.3s, transform 0.3s;
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
}
.service-card p { color: var(--color-text-muted); line-height: 1.7; }

/* ── PROCESS ── */
.process {
  padding: var(--space-2xl) 0;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
  position: relative;
}
.step-badge {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: 700;
}
.process-step p { color: var(--color-text-muted); max-width: 300px; }
.step-connector {
  position: absolute;
  top: 32px;
  right: -30px;
  width: 60px;
  height: 2px;
  background: var(--color-border);
}

/* ── TESTIMONIALS ── */
.testimonials {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-alt);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.testimonial-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.quote { font-size: var(--text-base); color: var(--color-text-muted); font-style: italic; line-height: 1.7; }
.testimonial-author { display: flex; align-items: center; gap: var(--space-sm); }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--color-border); flex-shrink: 0; }
.testimonial-author strong { display: block; font-size: var(--text-sm); }
.testimonial-author span { font-size: var(--text-xs); color: var(--color-text-muted); }

/* ── CTA BANNER ── */
.cta-banner {
  padding: var(--space-2xl) 0;
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  border-radius: var(--radius-lg);
  margin: 0 2.5rem var(--space-2xl);
}
.cta-banner .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}
.cta-banner p { font-size: var(--text-lg); opacity: 0.85; }

/* ── FOOTER ── */
.footer {
  background: var(--color-bg-dark);
  color: #fff;
  padding: var(--space-xl) 0 var(--space-lg);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--space-md);
}
.footer-brand { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-brand p { color: rgba(255,255,255,0.5); font-size: var(--text-sm); }
.footer-links, .footer-contact { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-links strong, .footer-contact strong { font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.4); margin-bottom: var(--space-xs); }
.footer-links a, .footer-contact a { color: rgba(255,255,255,0.7); font-size: var(--text-sm); transition: color 0.2s; }
.footer-links a:hover, .footer-contact a:hover { color: #fff; }
.footer-bottom p { font-size: var(--text-sm); color: rgba(255,255,255,0.3); }