/* Root Variables */
:root {
  --primary-color: #2c5f7d;
  --secondary-color: #4a8fb0;
  --accent-color: #e8a87c;
  --background-color: #f8f9fa;
  --surface-color: #ffffff;
  --text-primary: #2d3436;
  --text-secondary: #636e72;
  --text-muted: #b2bec3;
  --border-color: #dfe6e9;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Georgia', 'Times New Roman', serif;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--background-color);
  font-size: 16px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  background-color: var(--surface-color);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav a {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

nav a:hover {
  background-color: var(--background-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  width: 150px;
  height: 40px;
  box-sizing: border-box;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

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

.btn-accent:hover {
  background-color: #d99966;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Cards */
.card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: 2rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.card-meta {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 0.875rem;
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 1rem;
  color: var(--text-primary);
  background-color: var(--surface-color);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(44, 95, 125, 0.1);
}

textarea {
  min-height: 200px;
  resize: vertical;
  line-height: 1.8;
}

/* Journal Entry Styles */
.entry {
  background-color: var(--surface-color);
  border-left: 4px solid var(--accent-color);
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.entry-date {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.entry-content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-primary);
}

/* Sidebar */
.sidebar {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-title {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

.sidebar ul {
  list-style: none;
}

.sidebar li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.sidebar li:last-child {
  border-bottom: none;
}

/* Tags */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  background-color: var(--background-color);
  color: var(--text-secondary);
  border-radius: 20px;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.tag:hover {
  background-color: var(--primary-color);
  color: white;
  cursor: pointer;
}

/* Alert/Message Boxes */
.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
  font-family: 'Helvetica Neue', Arial, sans-serif;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border-left: 4px solid #28a745;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border-left: 4px solid #dc3545;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border-left: 4px solid #17a2b8;
}

/* Footer */
footer {
  background-color: var(--surface-color);
  padding: 3rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  text-align: center;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Utility Classes */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }

/* Responsive Design */
@media (max-width: 768px) {
  .container,
  .container-narrow {
    padding: 0 1rem;
  }
  
  nav ul {
    gap: 1rem;
  }
  
  nav a {
    padding: 0.5rem;
    font-size: 0.85rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .card {
    padding: 1.5rem;
  }
  
  .entry {
    padding: 1.5rem;
  }
}