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

html {
  scroll-behavior: smooth;
}

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

/* ===== Dental Studio - Svetla medicinska tema ===== */
:root {
  --primary: #4ecdc4;
  --primary-dark: #2b8a82;
  --bg-dark: #f8fafb;
  --bg-card: #ffffff;
  --bg-input: #f1f5f9;
  --text-light: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --accent: #06b6d4;
  --accent-light: #ecfeff;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

body {
  font-family: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Navbar - Čist, minimalan ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #ffffff;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-light);
}

.logo-icon { font-size: 1.6rem; }
.logo-text {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  transition: color 0.3s;
}

.nav-links a:hover { color: var(--primary-dark); }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--primary-dark);
  font-size: 28px;
  cursor: pointer;
}

/* ===== Hero - Split layout sa ilustracijom ===== */
.hero {
  background: linear-gradient(135deg, #ffffff 0%, #ecfeff 50%, #f0fdfa 100%);
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78, 205, 196, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-overlay { display: none; }

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 100px 20px 60px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-left { text-align: left; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--primary-dark);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(78, 205, 196, 0.2);
}

.hero-title {
  font-family: 'Poppins', sans-serif;
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-light);
  margin-bottom: 20px;
  display: block;
  text-align: left;
}

.hero-title .highlight {
  color: var(--primary-dark);
}

.hero-subtitle { display: none; }

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.hero-right {
  display: flex;
  justify-content: center;
}

.hero-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 400px;
}

.hero-feature {
  background: #ffffff;
  border-radius: 16px;
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--border);
  transition: transform 0.3s, box-shadow 0.3s;
}

.hero-feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(78, 205, 196, 0.15);
}


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

.hero-feature h4 {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 4px;
}

.hero-feature p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Statistike traka ===== */
.stats-bar {
  background: #ffffff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Buttons Base ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: 2px solid var(--primary);
  border-radius: 12px;
  font-family: 'Poppins', 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--primary-dark);
}

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

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
}

/* ===== Sections Base ===== */
.section {
  padding: 80px 0;
}

.section-title {
  font-family: 'Poppins', sans-serif;
  font-size: 42px;
  text-align: center;
  margin-bottom: 10px;
  color: var(--text-light);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 60px;
  font-size: 16px;
}

/* ===== Usluge - Horizontalne kartice ===== */
.usluge-section {
  background: var(--bg-dark);
  padding: 80px 0;
}

.usluge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.usluga-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.usluga-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(78, 205, 196, 0.12);
  transform: translateY(-2px);
}

.usluga-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.usluga-card h3 {
  color: var(--text-light);
  font-family: 'Poppins', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.usluga-trajanje {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.usluga-cena {
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 1.1rem;
  margin-top: 12px;
}

.usluga-card .btn-outline {
  margin-top: 16px;
  color: var(--primary-dark);
  border-color: var(--primary);
  border-radius: 10px;
  font-weight: 600;
}

.usluga-card .btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Zakazivanje - Kartica sa senkom ===== */
.booking-section {
  background: #ffffff;
  padding: 80px 0;
}

.booking-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

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

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

.booking-form {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  box-shadow: none;
  max-width: 700px;
  margin: 0 auto;
}

.form-group label {
  color: var(--text-light);
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: #ffffff;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--text-light);
  padding: 12px 16px;
  font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.12);
}

.form-group select option {
  background: #ffffff;
  color: var(--text-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94a3b8;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #5cdad1, #36a09a);
  box-shadow: 0 8px 25px rgba(78, 205, 196, 0.3);
}

.booking-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 700px;
  margin: 0 auto;
}

.info-card {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

.info-card h3 {
  color: var(--primary-dark);
  font-family: 'Poppins', sans-serif;
  font-size: 0.95rem;
  margin-bottom: 15px;
}

.info-card ul {
  list-style: none;
}

.info-card li {
  padding: 6px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.info-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ===== Kontakt - Row layout ===== */
.kontakt-section {
  background: var(--bg-dark);
  padding: 80px 0;
}

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

.kontakt-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.kontakt-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #ffffff;
  padding: 20px;
  border-radius: 14px;
  border: 1px solid var(--border);
}

.kontakt-icon {
  font-size: 1.3rem;
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kontakt-item h4 {
  color: var(--text-light);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.kontakt-item p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.map-placeholder {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ===== Footer - Minimalan ===== */
.footer {
  background: #ffffff;
  border-top: 1px solid var(--border);
  padding: 30px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand .logo-text {
  color: var(--primary-dark);
}

.footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  padding: 50px 40px;
  text-align: center;
  max-width: 420px;
  width: 90%;
  animation: slideUp 0.3s ease;
}

.modal-error {
  border-color: #e74c3c;
}

.modal-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.modal-content h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 28px;
  color: var(--text-light);
  margin-bottom: 15px;
}

.modal-content p {
  color: var(--text-muted);
  margin-bottom: 30px;
}

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
    padding-top: 100px;
  }
  .hero-left { text-align: center; }
  .hero-desc { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-features { max-width: 340px; margin: 0 auto; }
  .hero-title { font-size: 2.4rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.active { display: flex; }
  .mobile-menu-btn { display: block; }
  .nav-links a { color: var(--text-muted); }
  .booking-info { grid-template-columns: 1fr; }
  .kontakt-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-features { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hero-feature:nth-child(2),
  .hero-feature:nth-child(3) { transform: none; }
  .hero-feature:nth-child(2):hover,
  .hero-feature:nth-child(3):hover { transform: translateY(-4px); }
  .hero-title { font-size: 2rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 1.7rem; }
  .booking-form { padding: 24px 20px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}