/* Základní styly - prezentace firmy */
:root {
  --color-primary: #1a365d;
  --color-primary-light: #2c5282;
  --color-text: #2d3748;
  --color-text-muted: #718096;
  --color-bg: #f7fafc;
  --color-border: #e2e8f0;
  --header-height: 60px;
  --cover-height: 280px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

/* Header: cover + menu */
.site-header {
  background: var(--color-primary);
}

.cover-wrap {
  position: relative;
  width: 100%;
  height: var(--cover-height);
}

.cover {
  width: 100%;
  height: var(--cover-height);
  object-fit: cover;
  display: block;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.cover-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
}

/* Název firmy – střed headeru (horizontálně i vertikálně) */
.header-title {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0,0,0,0.4);
  pointer-events: none;
}

.nav-wrap {
  background: rgba(0,0,0,0.25);
}

.nav-menu {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  align-items: center;
  min-height: var(--header-height);
}

.nav-menu a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
  background: rgba(255,255,255,0.15);
}

/* Hlavní obsah: dva sloupce 80 : 20 */
.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .layout {
    grid-template-columns: 80fr 20fr;
  }
}

.main-col {
  min-width: 0;
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.sidebar {
  min-width: 0;
  background: #fff;
  padding: 1.25rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.main-col h1 {
  margin-top: 0;
  color: var(--color-primary);
  font-size: 1.75rem;
}

.main-col .page-content {
  word-wrap: break-word;
}

.main-col .page-content img {
  max-width: 100%;
  height: auto;
}

/* Kontaktní formulář */
.contact-form {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.contact-form label {
  display: block;
  margin-top: 0.75rem;
  margin-bottom: 0.25rem;
  font-weight: 500;
}
.contact-form label:first-of-type { margin-top: 0; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  max-width: 400px;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form .btn { margin-top: 1rem; }
.btn-primary {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
}
.btn-primary:hover { opacity: 0.9; }
.form-msg { padding: 0.75rem; border-radius: 4px; margin-top: 1rem; }
.form-msg-ok { background: #c6f6d5; color: #276749; }
.form-msg-err { background: #fed7d7; color: #c53030; }

/* Footer */
.site-footer {
  margin-top: 2rem;
  padding: 1.5rem 1rem;
  background: var(--color-primary);
  color: rgba(255,255,255,0.9);
  text-align: center;
  font-size: 0.9rem;
}

.site-footer a {
  color: rgba(255,255,255,0.95);
}