:root {
  --primary: #2d6a4f;
  --primary-light: #40916c;
  --primary-dark: #1b4332;
  --accent: #d4a373;
  --accent-light: #e9c46a;
  --bg: #fefae0;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --text: #212529;
  --text-muted: #6c757d;
  --border: #dee2e6;
  --shadow: 0 2px 15px rgba(0,0,0,.06);
  --shadow-hover: 0 8px 30px rgba(0,0,0,.12);
  --radius: 12px;
  --transition: .3s ease;
}

* { box-sizing: border-box; }

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

/* ===== NAVBAR ===== */
.navbar-custom {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 0;
  transition: var(--transition);
}
.navbar-custom.scrolled {
  box-shadow: var(--shadow);
}
.navbar-custom .navbar-brand {
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--primary-dark);
}
.navbar-custom .navbar-brand span { color: var(--accent); }
.navbar-custom .nav-link {
  color: var(--text);
  font-weight: 500;
  padding: .5rem 1rem !important;
  border-radius: 8px;
  transition: var(--transition);
}
.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
  color: var(--primary);
  background: rgba(45,106,79,.08);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .25;
  transition: opacity 1s ease;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}
.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.hero-content p {
  font-size: 1.2rem;
  opacity: .9;
  margin-bottom: 2rem;
}
.hero-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: .5rem;
}
.hero-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.4);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}
.hero-dot.active { background: #fff; width: 28px; border-radius: 5px; }

/* ===== BUTTONS ===== */
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: .75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn-primary-custom:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(45,106,79,.3);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: .75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn-accent:hover {
  background: var(--accent-light);
  color: var(--text);
  transform: translateY(-2px);
}
.btn-outline-custom {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
  padding: .65rem 1.8rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn-outline-custom:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== SECTIONS ===== */
.section {
  padding: 5rem 0;
}
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: .5rem;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}
.section-bg { background: var(--bg-white); }

/* ===== CARDS ===== */
.card-modern {
  background: var(--bg-white);
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}
.card-modern:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}
.card-modern img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.card-modern .card-body { padding: 1.5rem; }
.card-modern .card-title {
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: .5rem;
}
.card-modern .card-text {
  color: var(--text-muted);
  font-size: .95rem;
}
.card-modern .badge-custom {
  background: rgba(45,106,79,.1);
  color: var(--primary);
  font-weight: 600;
  padding: .35rem .75rem;
  border-radius: 6px;
  font-size: .8rem;
}

/* ===== BMI ===== */
.bmi-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  border-radius: var(--radius);
  padding: 3rem;
}
.bmi-section input {
  border-radius: 50px;
  border: 2px solid rgba(255,255,255,.3);
  background: rgba(255,255,255,.15);
  color: #fff;
  padding: .75rem 1.25rem;
  font-size: 1rem;
}
.bmi-section input::placeholder { color: rgba(255,255,255,.6); }
.bmi-section input:focus {
  background: rgba(255,255,255,.25);
  border-color: rgba(255,255,255,.6);
  box-shadow: none;
  color: #fff;
}
.bmi-result {
  background: rgba(255,255,255,.15);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-top: 1.5rem;
}
.bmi-value {
  font-size: 3rem;
  font-weight: 800;
}

/* ===== APPOINTMENT FORM ===== */
.form-modern .form-control,
.form-modern .form-select {
  border-radius: 10px;
  border: 2px solid var(--border);
  padding: .75rem 1rem;
  transition: var(--transition);
}
.form-modern .form-control:focus,
.form-modern .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,.15);
}
.form-modern label {
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: .4rem;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.8);
  padding: 3rem 0 1.5rem;
}
.footer a { color: rgba(255,255,255,.7); text-decoration: none; transition: var(--transition); }
.footer a:hover { color: #fff; }
.footer-brand { font-size: 1.5rem; font-weight: 700; color: #fff; }
.footer-brand span { color: var(--accent); }
.footer hr { border-color: rgba(255,255,255,.15); }

/* ===== ADMIN ===== */
.admin-sidebar {
  background: var(--primary-dark);
  min-height: 100vh;
  padding: 1.5rem 1rem;
  position: fixed;
  width: 250px;
  z-index: 100;
}
.admin-sidebar .nav-link {
  color: rgba(255,255,255,.7);
  padding: .75rem 1rem;
  border-radius: 8px;
  margin-bottom: .25rem;
  font-weight: 500;
  transition: var(--transition);
}
.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
  background: rgba(255,255,255,.15);
  color: #fff;
}
.admin-sidebar .nav-link i { margin-right: .5rem; width: 20px; text-align: center; }
.admin-main {
  margin-left: 250px;
  padding: 2rem;
  min-height: 100vh;
  background: var(--bg-light);
}
.admin-header {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.stat-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.stat-card .stat-number {
  font-size: 2rem;
  font-weight: 700;
}

/* ===== LOGIN ===== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--accent) 100%);
}
.login-card {
  background: var(--bg-white);
  border-radius: 20px;
  padding: 3rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 60px rgba(0,0,0,.2);
}
.login-card h2 { font-weight: 700; color: var(--primary-dark); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero-content h1 { font-size: 2rem; }
  .hero { min-height: 70vh; }
  .section { padding: 3rem 0; }
  .section-title { font-size: 1.75rem; }
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; }
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== LOADING ===== */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 4rem 0 3rem;
  margin-bottom: 3rem;
}
.page-header h1 { font-weight: 700; font-size: 2.5rem; }
.page-header p { opacity: .8; font-size: 1.1rem; }

/* ===== IMAGE PLACEHOLDER ===== */
.img-placeholder {
  width: 100%;
  height: 220px;
  background: linear-gradient(135deg, #e9ecef, #dee2e6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #adb5bd;
  font-size: 2rem;
}

/* ===== TABLE ===== */
.table-modern {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.table-modern thead { background: var(--primary); color: #fff; }
.table-modern th { font-weight: 600; border: none; padding: 1rem; }
.table-modern td { padding: 1rem; vertical-align: middle; }