/* ===========================
   CSS Reset & Base
   =========================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===========================
   CSS Custom Properties
   =========================== */
:root {
  --primary: #1B4F72;
  --primary-dark: #153d59;
  --secondary: #E67E22;
  --secondary-dark: #cf6d13;
  --bg-light: #F8F9FA;
  --text: #2C3E50;
  --text-light: #5a6c7d;
  --white: #FFFFFF;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
  --radius: 8px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--secondary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--secondary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
}

.btn-small {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* ===========================
   Header
   =========================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: var(--primary);
  padding: 10px 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

.logo span {
  color: var(--secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--white);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.header-phone {
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  background: url('images/hero-background.jpg') center/cover no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(27, 79, 114, 0.75);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
  padding: 0 20px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 36px;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===========================
   Section common
   =========================== */
.section {
  padding: 80px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ===========================
   Services (Služby)
   =========================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.service-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.service-card-body {
  padding: 24px;
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.service-card h3 {
  color: var(--primary);
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.service-card p {
  color: var(--text-light);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.service-card ul {
  margin-bottom: 20px;
  padding-left: 0;
}

.service-card ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.service-card ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: 700;
}

/* ===========================
   Why Us (Prečo my)
   =========================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.stat-item {
  text-align: center;
  padding: 30px 16px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--secondary);
  display: block;
}

.stat-label {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-top: 6px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.advantage-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
}

.advantage-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.advantage-card h3 {
  color: var(--primary);
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ===========================
   About (O nás)
   =========================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.about-text h2 {
  color: var(--primary);
  margin-bottom: 20px;
}

.about-text p {
  margin-bottom: 16px;
  color: var(--text-light);
}

.about-text strong {
  color: var(--text);
}

/* ===========================
   Order Form (Objednávka)
   =========================== */
.form-wrapper {
  max-width: 700px;
  margin: 0 auto;
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

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

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #dde1e6;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition);
  background: var(--white);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group .error-message {
  color: #e74c3c;
  font-size: 0.85rem;
  margin-top: 4px;
  display: none;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: #e74c3c;
}

.form-group.error .error-message {
  display: block;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-note {
  text-align: center;
  color: var(--text-light);
  font-size: 0.85rem;
  margin-top: 16px;
}

/* ===========================
   Contact (Kontakt)
   =========================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-map iframe {
  width: 100%;
  height: 400px;
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-info h3 {
  color: var(--primary);
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.contact-item-icon {
  font-size: 1.3rem;
  min-width: 28px;
  text-align: center;
  color: var(--secondary);
}

.contact-item p {
  color: var(--text-light);
  line-height: 1.5;
}

.contact-item a {
  color: var(--primary);
  font-weight: 600;
  transition: color var(--transition);
}

.contact-item a:hover {
  color: var(--secondary);
}

/* ===========================
   Footer
   =========================== */
.footer {
  background: var(--primary-dark);
  color: var(--white);
  padding: 50px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  font-size: 1.4rem;
  margin-bottom: 12px;
  display: inline-block;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer h4 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--secondary);
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 0;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.footer-contact a {
  color: var(--secondary);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

/* ===========================
   Scroll Animations
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===========================
   Responsive – Tablet (768px)
   =========================== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--primary-dark);
    flex-direction: column;
    padding: 80px 30px 30px;
    gap: 20px;
    transition: right var(--transition);
    box-shadow: -4px 0 15px rgba(0, 0, 0, 0.2);
  }

  .nav-links.active {
    right: 0;
  }

  .hamburger {
    display: flex;
  }

  .header-phone {
    display: none;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantages-grid {
    grid-template-columns: 1fr;
    max-width: 450px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-image {
    order: -1;
  }

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

  .form-wrapper {
    padding: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }

  .footer-brand p {
    max-width: 100%;
  }

  .section {
    padding: 60px 0;
  }
}

/* ===========================
   Responsive – Small mobile (480px)
   =========================== */
@media (max-width: 480px) {
  h1 { font-size: 1.7rem; }

  .hero {
    min-height: 90vh;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-number {
    font-size: 2rem;
  }
}