/* Custom CSS for Professional Logistics Theme */

:root {
  /* Core Color Palette */
  --primary-header: #0f172a; /* Deep navy blue */
  --accent: #f59e0b;         /* Gold/amber */
  --bg-wrapper: #f3f4f6;     /* Light grey */
  
  /* Additional UI Colors */
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --card-bg: #ffffff;
  
  /* Spacing */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 3rem;
  
  /* Transitions & Shadows */
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-base: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 20px 25px -5px rgba(15, 23, 42, 0.15), 0 10px 10px -5px rgba(15, 23, 42, 0.08);
  
  /* Borders */
  --radius-md: 8px;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-wrapper);
  line-height: 1.6;
}

/* Background Wrapper */
.wrapper {
  background-color: var(--bg-wrapper);
  min-height: 100vh;
  padding: var(--spacing-xl) var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

/* Primary Headers */
h1, h2, h3, .primary-header {
  color: var(--primary-header);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

h1 {
  font-size: 2.5rem;
}

/* Decorative Accent for main headers */
.section-title {
  position: relative;
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 4px;
  background-color: var(--accent);
  border-radius: 2px;
}

/* Service Cards Container */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

/* Service Card with Smooth Hover Elevation */
.service-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-base);
  border-top: 4px solid transparent;
  transition: transform var(--transition-normal), 
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

/* Elevation Effect */
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-elevated);
  border-top-color: var(--accent);
}

.service-card-header {
  color: var(--primary-header);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.service-card-text {
  color: var(--text-muted);
  flex-grow: 1;
}

/* Accent Buttons */
.btn-accent {
  display: inline-block;
  background-color: var(--accent);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: calc(var(--radius-md) / 2);
  cursor: pointer;
  transition: background-color var(--transition-normal);
  text-decoration: none;
  margin-top: var(--spacing-md);
}

.btn-accent:hover {
  background-color: #d97706; /* Slightly darker gold/amber on hover */
}