:root {
  /* Clinical/Medical Color Palette */
  --primary: #0e4b75; /* Deep Professional Blue */
  --primary-light: #2c7da0;
  --secondary: #00b4d8; 
  --accent: #e6f4f1; 
  --text-dark: #1e293b;
  --text-light: #64748b;
  --white: #ffffff;
  --bg-light: #f8fafc;
  --border-color: #e2e8f0;
  --shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text-dark);
  background-color: var(--bg-light);
  line-height: 1.6;
}

h1,
h2,
h3,
h4 {
  font-family: "Merriweather", serif;
  color: var(--primary);
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

/* Navigation */
nav {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-dark);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding-top: 140px;
  padding-bottom: 80px;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero-text .subtitle {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  font-weight: 300;
}

.hero-btns {
  display: flex;
  gap: 15px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-light);
  transform: translateY(-2px);
}

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

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

/* Profile Photo Section */
.profile-card {
  background: white;
  padding: 20px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.profile-img-container {
  width: 100%;
  height: 400px;
  background-color: #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  margin-bottom: 15px;
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Default placeholder logic */
  transition: transform 0.5s ease;
}

.profile-card:hover .profile-img {
  transform: scale(1.02);
}

.upload-hint {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 5px;
}

#photo-input {
  display: none;
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.stat-card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--secondary);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* Sections General */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.5rem;
}

.section-header p {
  color: var(--text-light);
}

/* Expertise Grid */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.expertise-card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.expertise-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.icon-box {
  width: 50px;
  height: 50px;
  background: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.expertise-list {
  list-style: none;
  margin-top: 15px;
}

.expertise-list li {
  margin-bottom: 8px;
  display: flex;
  align-items: start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-light);
}

.expertise-list li i {
  color: var(--secondary);
  margin-top: 4px;
}

/* Experience Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: "";
  position: absolute;
  width: 2px;
  background: var(--border-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  box-sizing: border-box;
}

.timeline-item.left {
  left: 0;
  text-align: right;
}

.timeline-item.right {
  left: 50%;
}

.timeline-content {
  padding: 25px;
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow);
  position: relative;
}

.timeline-item::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background: white;
  border: 4px solid var(--secondary);
  top: 25px;
  border-radius: 50%;
  z-index: 1;
}

.timeline-item.right::after {
  left: -10px;
}

.date-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.job-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 5px;
}

.company {
  font-size: 1rem;
  color: var(--primary);
  font-family: "Merriweather", serif;
  margin-bottom: 10px;
}

/* Education Section */
.education-card {
  background: white;
  border-left: 5px solid var(--primary);
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 0 8px 8px 0;
  box-shadow: var(--shadow);
}

/* Contact Section */
.contact-section {
  background-color: var(--primary);
  color: white;
  text-align: center;
}

.contact-section h2 {
  color: white;
}

.contact-section p {
  color: rgba(255, 255, 255, 0.8);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.social-btn {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  transition: var(--transition);
}

.social-btn:hover {
  background: white;
  color: var(--primary);
  transform: translateY(-3px);
}

/* Footer */
footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 40px 0;
  text-align: center;
  font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    order: 2;
  }

  .profile-card {
    order: 1;
    max-width: 400px;
    margin: 0 auto;
  }

  .hero-btns {
    justify-content: center;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .timeline::after {
    left: 31px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }

  .timeline-item::after {
    left: 21px;
  }

  .timeline-item.left,
  .timeline-item.right {
    left: 0;
    text-align: left;
  }

  .hero-text h1 {
    font-size: 2.5rem;
  }
}