/* ===========================
   ALTCLEAN – style.css
   =========================== */

/* Reset & základní nastavení */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-primary:   #0B3D91;   /* tmavá modrá – hlavní barva */
  --c-accent:    #1A73E8;   /* živá modrá – akcent */
  --c-accent-lt: #E8F0FE;   /* světlá modrá – pozadí badges */
  --c-dark:      #0D1117;   /* téměř černá */
  --c-dark2:     #161B22;   /* tmavé pozadí sekce */
  --c-text:      #1C1E21;
  --c-text-muted:#5C6370;
  --c-border:    #E0E4EA;
  --c-bg:        #FFFFFF;
  --c-bg-alt:    #F6F8FC;
  --c-success:   #1B7A3E;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Barlow', sans-serif;

  --radius-sm:  6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);

  --transition: 0.2s ease;

  --max-w: 1100px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ===========================
   LAYOUT UTILITIES
   =========================== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-dark {
  background: var(--c-dark2);
  color: #E6EAF0;
}

.section-alt {
  background: var(--c-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-accent);
  background: var(--c-accent-lt);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-dark .section-label {
  background: rgba(26,115,232,0.2);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 17px;
  color: var(--c-text-muted);
  font-weight: 300;
}

.section-dark .section-header p {
  color: #8B96A8;
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
}
.btn-primary:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}

.btn-outline {
  background: transparent;
  color: var(--c-accent);
  border-color: var(--c-accent);
}
.btn-outline:hover {
  background: var(--c-accent);
  color: #fff;
}

.btn-nav {
  background: var(--c-accent);
  color: #fff;
  border-color: var(--c-accent);
  padding: 9px 20px;
  font-size: 14px;
}
.btn-nav:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
}

.btn-full { width: 100%; justify-content: center; }

/* ===========================
   HEADER / NAV
   =========================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(11,61,145,0.97);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background var(--transition);
}

.header.scrolled {
  background: rgba(11,61,145,1);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 0;
  flex-shrink: 0;
}

.logo-alt {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -1px;
}

.logo-clean {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: #7AADFF;
  letter-spacing: -1px;
}

.logo-tag {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255,255,255,0.8);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}

/* ===========================
   HERO
   =========================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(150deg, #0B3D91 0%, #061E5B 60%, #030D2E 100%);
  position: relative;
  overflow: hidden;
  padding-top: 68px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding-top: 80px;
  padding-bottom: 80px;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  font-weight: 400;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: 0.2px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background: #4ADE80;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: #fff;
  margin-bottom: 24px;
}

.hero-title em {
  font-style: normal;
  color: #7AADFF;
}

.hero-perex {
  font-size: 18px;
  font-weight: 300;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 32px;
}

.stat {
  display: flex;
  flex-direction: column;
  padding: 0 32px;
}

.stat:first-child { padding-left: 0; }

.stat strong {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.stat span {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.15);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll span {
  display: block;
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,0.25);
  border-radius: 12px;
  position: relative;
}

.hero-scroll span::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  animation: scroll-dot 2s ease infinite;
}

@keyframes scroll-dot {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  80% { transform: translateX(-50%) translateY(14px); opacity: 0; }
  100% { transform: translateX(-50%) translateY(0); opacity: 0; }
}

/* ===========================
   SERVICES
   =========================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--c-accent);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--c-accent-lt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-accent);
  margin-bottom: 20px;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--c-dark);
}

.service-card p {
  font-size: 15px;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-list li {
  font-size: 14px;
  color: var(--c-text-muted);
  padding-left: 18px;
  position: relative;
}

.service-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--c-accent);
  font-weight: 700;
}

/* ===========================
   PROČ MY
   =========================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.why-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 28px 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  transition: background var(--transition);
}

.why-item:hover {
  background: rgba(255,255,255,0.06);
}

.why-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  background: rgba(26,115,232,0.18);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #7AADFF;
}

.why-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #E6EAF0;
}

.why-item p {
  font-size: 13.5px;
  color: #6B7A8D;
  line-height: 1.6;
}

/* ===========================
   OBLAST
   =========================== */
.area-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.area-box {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.area-box h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: 10px;
}

.area-box p {
  font-size: 14.5px;
  color: var(--c-text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.area-box-cta {
  background: var(--c-accent-lt);
  border-color: var(--c-accent);
}

.area-box-cta h3 { color: var(--c-accent); }

/* ===========================
   KROKY
   =========================== */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}

.step {
  flex: 1;
  max-width: 220px;
  text-align: center;
  padding: 0 16px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--c-border);
  line-height: 1;
  margin-bottom: 12px;
}

.step h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--c-dark);
}

.step p {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.step-arrow {
  font-size: 24px;
  color: var(--c-border);
  padding-top: 40px;
  flex-shrink: 0;
}

/* ===========================
   KONTAKT
   =========================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  background: var(--c-accent-lt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-accent);
}

.contact-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--c-text-muted);
  margin-bottom: 2px;
}

.contact-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-dark);
  transition: color var(--transition);
}

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

.contact-legal {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
  font-size: 13px;
  color: var(--c-text-muted);
}

/* FORMULÁŘ */
.contact-form {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 32px;
}

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.12);
}

.form-group textarea { resize: vertical; }

.form-note {
  font-size: 12px;
  color: var(--c-text-muted);
  margin-top: 12px;
  text-align: center;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #D1FAE5;
  color: var(--c-success);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  margin-top: 12px;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
  background: var(--c-dark);
  color: rgba(255,255,255,0.5);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: baseline;
}

.footer-logo .logo-alt {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.footer-logo .logo-clean {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: #7AADFF;
  letter-spacing: -0.5px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-nav a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

.footer-nav a:hover { color: #fff; }

.footer-copy {
  font-size: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  width: 100%;
}

/* ===========================
   ANIMACE (fade-in při scrollu)
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   RESPONZIVITA
   =========================== */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .area-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { flex-wrap: wrap; gap: 24px; justify-content: center; }
  .step-arrow { display: none; }
}

@media (max-width: 640px) {
  .section { padding: 60px 0; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--c-primary);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; font-size: 16px; width: 100%; }

  .services-grid,
  .why-grid,
  .area-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .hero-stats {
    gap: 24px;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat { padding: 0; }
  .stat-divider { display: none; }

  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}

/* ===========================
   O NÁS
   =========================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text p {
  font-size: 17px;
  color: var(--c-text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
  font-weight: 300;
}

.about-text p:last-child { margin-bottom: 0; }

.about-values {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-value {
  display: flex;
  flex-direction: column;
  padding: 20px 24px;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.about-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
}

.about-label {
  font-size: 14px;
  color: var(--c-text-muted);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}