/* =========================================================
   Koubík Mail – stylesheet
   Tepelý, rodinný a důvěryhodný design
   Paleta: petrolejová + vínová + zlatá + krémové pozadí
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --c-bg:        #f7f1e6;          /* krémové pozadí */
  --c-bg-alt:    #efe6d4;          /* tmavší krémová pro střídavé sekce */
  --c-paper:     #fffaf1;          /* papírové karty */
  --c-ink:       #1b2a36;          /* hlavní text */
  --c-ink-soft:  #4a5763;
  --c-primary:   #0f3a47;          /* petrolejová */
  --c-primary-2: #144b5c;
  --c-accent:    #8a1c2b;          /* vínová */
  --c-gold:      #b88a3e;          /* zlatavá */
  --c-gold-soft: #d9b97a;
  --c-line:      #e3d6b8;          /* jemné linky */
  --shadow-sm:   0 1px 2px rgba(15,58,71,.08);
  --shadow-md:   0 10px 30px -12px rgba(15,58,71,.25);
  --shadow-lg:   0 25px 60px -25px rgba(15,58,71,.35);
  --radius:      14px;
  --radius-lg:   22px;
  --font-serif:  'Cormorant Garamond', 'Georgia', serif;
  --font-sans:   'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--c-ink);
  background: var(--c-bg);
  /* jemná papírová textura pomocí přechodů */
  background-image:
    radial-gradient(circle at 20% 0%, rgba(184,138,62,.07), transparent 40%),
    radial-gradient(circle at 100% 30%, rgba(15,58,71,.05), transparent 50%),
    radial-gradient(circle at 0% 90%, rgba(138,28,43,.05), transparent 45%);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-accent); }

h1,h2,h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--c-primary);
  letter-spacing: .2px;
  line-height: 1.2;
  margin: 0 0 .6em;
}
h1 { font-size: clamp(2.2rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); text-align: center; margin-bottom: 1.4rem; }
h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 2px;
  margin: .6rem auto 0;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
}
h3 { font-size: 1.35rem; }
p  { margin: 0 0 1rem; }

.container { width: min(1140px, 92%); margin: 0 auto; }
.container.narrow { width: min(820px, 92%); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 241, 230, .92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: .9rem 0;
}
.logo {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-serif);
  font-size: 1.5rem; font-weight: 700;
  color: var(--c-primary);
}
.logo-mark {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-2));
  color: var(--c-gold-soft);
  font-size: 1.2rem;
  box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(184,138,62,.4);
}
.main-nav { display: flex; gap: 1.6rem; }
.main-nav a {
  color: var(--c-ink); font-weight: 500; font-size: .98rem;
  position: relative; padding: .25rem 0;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--c-gold);
  transition: width .25s ease;
}
.main-nav a:hover::after { width: 100%; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid var(--c-line);
  border-radius: 8px; padding: .35rem .6rem; font-size: 1.2rem; cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.5rem;
  font-family: var(--font-sans); font-weight: 600; font-size: 1rem;
  border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-2));
  color: #fff;
  box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(217,185,122,.35);
}
.btn-primary:hover { transform: translateY(-2px); color: #fff; box-shadow: var(--shadow-lg); }
.btn-outline {
  background: transparent;
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.btn-outline:hover { background: var(--c-primary); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 5rem 0 6rem;
  background:
    radial-gradient(ellipse at top left, rgba(184,138,62,.12), transparent 60%),
    linear-gradient(180deg, #faf3e4 0%, var(--c-bg) 100%);
  overflow: hidden;
}
.hero::before {
  /* dekorativní jemná linka pod hero */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: linear-gradient(90deg, transparent, var(--c-gold-soft), transparent);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 3rem;
  align-items: center;
}
.hero-text .eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: .78rem; letter-spacing: .25em; text-transform: uppercase;
  color: var(--c-accent); font-weight: 600;
  padding: .35rem .8rem;
  border: 1px solid var(--c-gold-soft);
  border-radius: 999px;
  background: rgba(255,250,241,.7);
  margin-bottom: 1.2rem;
}
.hero h1 { margin-bottom: 1rem; }
.hero h1 em { font-style: italic; color: var(--c-accent); }
.lead {
  font-size: 1.15rem;
  color: var(--c-ink-soft);
  max-width: 560px;
}
.tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--c-primary);
  margin-top: .5rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 1.8rem 0 1.5rem; }
.hero-domains { display: flex; gap: .6rem; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  color: var(--c-primary);
  font-family: var(--font-serif); font-weight: 600;
  padding: .4rem .9rem; border-radius: 999px;
  font-size: .95rem;
  box-shadow: var(--shadow-sm);
}
.chip::before { content: "✦"; color: var(--c-gold); font-size: .7rem; }

/* Hero illustration panel */
.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  justify-self: end;
  width: 100%;
}
.hero-art svg { width: 100%; height: 100%; filter: drop-shadow(var(--shadow-lg)); }

/* ---------- Sections ---------- */
.section { padding: 5rem 0; position: relative; }
.section.alt {
  background:
    linear-gradient(180deg, var(--c-bg-alt), #ebe0c9);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}
.section-intro {
  text-align: center; max-width: 680px; margin: 0 auto 2.5rem;
  color: var(--c-ink-soft); font-size: 1.05rem;
}

/* ---------- Grids ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- Cards ---------- */
.card {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.6rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform .2s ease, box-shadow .25s ease, border-color .2s ease;
}
.card::before {
  /* dekorativní zlaté ucho karty */
  content: ""; position: absolute; top: 0; left: 1.6rem;
  width: 40px; height: 3px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-gold-soft));
  border-radius: 0 0 4px 4px;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-gold-soft);
}
.card .icon {
  display: inline-grid; place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15,58,71,.08), rgba(184,138,62,.18));
  color: var(--c-primary);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
.card h3 { color: var(--c-primary); margin-bottom: .4rem; font-family: var(--font-serif); font-size: 1.3rem; }
.card p  { color: var(--c-ink-soft); margin: 0; font-size: .98rem; }

/* ---------- Steps ---------- */
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem;
}
.steps li {
  display: flex; gap: 1rem;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-sm);
}
.steps li span {
  flex-shrink: 0;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), #6e1622);
  color: var(--c-gold-soft);
  font-family: var(--font-serif); font-weight: 700; font-size: 1.2rem;
  box-shadow: inset 0 0 0 2px rgba(217,185,122,.4);
}
.steps li h3 { margin: 0 0 .2rem; font-size: 1.1rem; }
.steps li p  { margin: 0; color: var(--c-ink-soft); font-size: .95rem; }

/* ---------- Pricing cards ---------- */
.pricing-card {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2rem;
  box-shadow: var(--shadow-md);
  display: flex; flex-direction: column;
  position: relative;
  overflow: hidden;
}
.pricing-card::before {
  /* dekorativní pruh poštovní známky */
  content: ""; position: absolute; left: 0; right: 0; top: 0;
  height: 6px;
  background:
    repeating-linear-gradient(90deg, var(--c-gold) 0 12px, transparent 12px 18px);
  opacity: .7;
}
.pricing-card.featured {
  background: linear-gradient(180deg, #102e38, #0f3a47);
  color: #f5ead2;
  border-color: var(--c-primary);
}
.pricing-card.featured h3 { color: #f5ead2; }
.pricing-card.featured .price-note { color: var(--c-gold-soft); }
.pricing-card.featured ul li { color: #e3d6b8; }
.pricing-card.featured ul li::before { color: var(--c-gold); }
.pricing-card.featured::after {
  content: "Doporučeno";
  position: absolute; top: 18px; right: -38px;
  transform: rotate(35deg);
  background: var(--c-accent); color: var(--c-gold-soft);
  font-size: .72rem; font-weight: 700; letter-spacing: .15em;
  padding: .25rem 3rem;
  text-transform: uppercase;
}
.pricing-card h3 { font-size: 1.6rem; margin-top: .5rem; }
.price-note {
  font-family: var(--font-serif); font-style: italic;
  color: var(--c-accent); font-size: 1.1rem; margin-bottom: 1rem;
}
.pricing-card ul { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.pricing-card ul li {
  padding: .5rem 0 .5rem 1.6rem; position: relative;
  border-bottom: 1px dashed var(--c-line);
  font-size: .98rem;
}
.pricing-card ul li:last-child { border-bottom: none; }
.pricing-card ul li::before {
  content: "✦"; position: absolute; left: 0; top: .55rem;
  color: var(--c-gold); font-size: .85rem;
}
.pricing-card .btn { align-self: flex-start; margin-top: auto; }

/* ---------- Mini cards (technické) ---------- */
.grid-3.small { gap: 1rem; }
.mini-card {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  text-align: center;
  color: var(--c-primary);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

/* ---------- O příjmení ---------- */
#o-prijmeni {
  background:
    linear-gradient(180deg, var(--c-bg), #f3ead7);
}
#o-prijmeni .container.narrow {
  background: var(--c-paper);
  padding: 3rem 3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-md);
  position: relative;
}
#o-prijmeni .container.narrow::before {
  content: "K";
  position: absolute; top: -.3em; right: .3em;
  font-family: var(--font-serif); font-weight: 700;
  font-size: 9rem;
  color: rgba(15,58,71,.06);
  line-height: 1;
}

/* ---------- FAQ ---------- */
details {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 1rem 1.3rem;
  margin-bottom: .8rem;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease;
}
details[open] { border-color: var(--c-gold-soft); }
details summary {
  cursor: pointer;
  font-family: var(--font-serif); font-weight: 600; font-size: 1.15rem;
  color: var(--c-primary);
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem;
}
details summary::-webkit-details-marker { display: none; }
details summary::after {
  content: "+"; font-size: 1.6rem; color: var(--c-gold);
  font-weight: 400; transition: transform .2s ease;
}
details[open] summary::after { content: "−"; }
details p, details ul { margin-top: .8rem; color: var(--c-ink-soft); }

/* ---------- Formulář ---------- */
.order-form {
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}
.order-form::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 6px; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent), var(--c-gold));
}
.order-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.order-form label {
  display: block; margin-bottom: 1.1rem;
  font-weight: 600; font-size: .92rem;
  color: var(--c-primary);
}
.order-form input,
.order-form select,
.order-form textarea {
  width: 100%; margin-top: .4rem;
  padding: .75rem .9rem;
  font: inherit; font-weight: 400;
  color: var(--c-ink);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.order-form input:focus,
.order-form select:focus,
.order-form textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(15,58,71,.12);
}
.order-form .hint { display: block; margin-top: .35rem; color: var(--c-accent); font-weight: 500; font-size: .85rem; }
.preview-box {
  background: linear-gradient(135deg, #fff8e9, #faeec9);
  border: 1px dashed var(--c-gold);
  border-radius: 10px;
  padding: 1rem 1.2rem; margin-bottom: 1.2rem;
  font-family: var(--font-serif); font-size: 1.15rem;
  color: var(--c-primary);
}
.preview-box strong { color: var(--c-accent); font-weight: 700; }
.order-form .check { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400; color: var(--c-ink-soft); font-size: .92rem; }
.order-form .check input { width: auto; margin: .25rem 0 0; }
.form-actions { margin-top: 1.5rem; }
.form-message {
  margin-top: 1.5rem; padding: 1.2rem 1.4rem;
  border-radius: 10px;
  background: #fff8e9; border: 1px solid var(--c-gold-soft);
  color: var(--c-ink);
}
.form-message.success { background: #e8f1ec; border-color: #88b39a; }

/* ---------- Kontakt ---------- */
.contact-list {
  list-style: none; padding: 0; margin: 0;
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 1.8rem 2rem;
  box-shadow: var(--shadow-sm);
}
.contact-list li { padding: .55rem 0; border-bottom: 1px dashed var(--c-line); }
.contact-list li:last-child { border-bottom: none; }

/* ---------- Footer ---------- */
.site-footer {
  background: linear-gradient(180deg, #0d3340, #082530);
  color: #d9cba5;
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  position: relative;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-accent), var(--c-gold));
}
.footer-inner {
  display: grid; grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem; align-items: start;
}
.site-footer strong { font-family: var(--font-serif); font-size: 1.3rem; color: var(--c-gold-soft); }
.site-footer a { color: #f0e2bb; }
.site-footer a:hover { color: #fff; }
.footer-note { font-size: .88rem; color: rgba(217,203,165,.7); font-style: italic; }

/* ---------- Legal pages ---------- */
.legal { padding: 3rem 0 4rem; }
.legal h1 { margin-bottom: 1.5rem; }
.legal h2 { text-align: left; font-size: 1.4rem; margin-top: 2rem; }
.legal h2::after { display: none; }
.back-link {
  display: inline-block; margin-bottom: 1rem;
  font-weight: 500; color: var(--c-accent);
}
.draft-warning {
  background: #fff4d6; border: 1px solid var(--c-gold);
  border-left: 4px solid var(--c-accent);
  padding: 1rem 1.2rem; border-radius: 10px;
  margin-bottom: 2rem; color: var(--c-ink);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { padding: 3rem 0 4rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-art { max-width: 340px; justify-self: center; }
  .grid-2, .grid-3, .steps { grid-template-columns: 1fr; }
  .grid-3.small { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
}
@media (max-width: 720px) {
  .main-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--c-paper); border-bottom: 1px solid var(--c-line);
    padding: 1rem 1.5rem;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .7rem 0; border-bottom: 1px solid var(--c-line); }
  .main-nav a:last-child { border-bottom: none; }
  .nav-toggle { display: inline-block; }
  .order-form { padding: 1.5rem; }
  .order-form .row { grid-template-columns: 1fr; }
  #o-prijmeni .container.narrow { padding: 2rem 1.5rem; }
}