/* --- CSS Reset & Global Styles --- */
:root {
  --background-main: #f8f9fa;   /* Soft off-white background */
  --background-card: #ffffff;   /* Pure white for cards and sidebar */
  --primary-accent: #345f8f;    /* Classic Professional Blue */
  --text-primary: #212529;      /* Dark gray for main headings */
  --text-secondary: #6c757d;    /* Muted gray for body text */
  --border-color: #dee2e6;      /* Light gray for borders */
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--background-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- Main Layout --- */
.main-container {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
}

.sidebar {
  width: 350px;
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  background-color: var(--background-card);
  border-right: 1px solid var(--border-color);
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.content-area {
  flex: 1;
  padding: 3rem;
  min-width: 0; /* Prevents flexbox overflow */
}

/* --- Sidebar Content --- */
.profile-image {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-accent);
  margin-bottom: 1rem;
}

.profile-name {
  font-family: 'Playfair Display', serif;
  font-size: 2.25rem;
  color: var(--text-primary);
}

.profile-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.profile-bio {
  color: var(--text-secondary);
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.sidebar-nav a:hover {
  color: var(--primary-accent);
}

.sidebar-nav i {
  font-size: 1.25rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  color: var(--text-secondary);
  font-size: 1.5rem;
  transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover {
  color: var(--primary-accent);
  transform: translateY(-2px);
}

/* --- Main Content Area Styling --- */
.content-section {
  margin-bottom: 4rem;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--primary-accent);
  padding-bottom: 0.5rem;
  display: inline-block;
}

.content-section p {
    color: var(--text-secondary);
    max-width: 70ch; /* Improves readability */
}

/* --- Skills Section --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.skill-category {
    background-color: var(--background-card);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.skill-category h3 {
    font-size: 1.1rem;
    color: var(--primary-accent);
    margin-bottom: 0.5rem;
}

/* --- Projects Section --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.07);
}

.project-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.project-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    flex-grow: 1; 
    margin-bottom: 1.5rem;
}

.project-buttons {
    margin-top: auto; /* Pushes buttons to the bottom */
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--primary-accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  border: 1px solid var(--primary-accent);
  transition: background-color 0.3s ease, transform 0.3s ease;
  font-size: 0.875rem;
}

.btn:hover {
  background-color: #2a4a70; /* Darker shade of blue on hover */
  transform: translateY(-2px);
}

.btn.disabled {
    background-color: #e9ecef;
    border-color: var(--border-color);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* --- Footer --- */
.site-footer {
    text-align: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .main-container {
        flex-direction: column;
    }

    .sidebar {
        position: static;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        text-align: center;
    }

    .sidebar-content {
        align-items: center;
    }

    .content-area {
        padding: 2rem;
    }
}