/* 
   Artic Living - Main Stylesheet 
   Theme: Modern, Clean, Professional, Elegant
   Dominant Color: Deep Blue
*/

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables --- */
:root {
  /* Colors */
  --color-primary: #0B2545;      /* Deep Royal Blue */
  --color-primary-light: #133E75; /* Lighter shade of primary */
  --color-secondary: #F0F4F8;    /* Soft Blue / Off-white */
  --color-accent: #8DA9C4;       /* Calm Blue-Grey Accent */
  --color-text-dark: #1A202C;    /* Dark Charcoal for text */
  --color-text-light: #718096;   /* Medium Gray for body text */
  --color-white: #FFFFFF;
  --color-bg-light: #FFFFFF;
  --color-bg-offset: #F7FAFC;    /* Very subtle gray-blue bg */

  /* Typography */
  --font-main: 'Plus Jakarta Sans', sans-serif;
  
  /* Spacing */
  --container-width: 1200px;
  --spacing-xs: 0.5rem;   /* 8px */
  --spacing-sm: 1rem;     /* 16px */
  --spacing-md: 2rem;     /* 32px */
  --spacing-lg: 4rem;     /* 64px */
  --spacing-xl: 8rem;     /* 128px */

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.25;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Utility Classes --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

.section-bg-offset {
  background-color: var(--color-bg-offset);
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-weight: 600;
  border-radius: 4px; /* Slightly rounded, clean */
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

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

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

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

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

/* --- Header & Nav --- */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-dark);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-primary);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-col p, .footer-col a {
  color: rgba(255,255,255, 0.8);
}

.footer-col ul li {
  margin-bottom: 0.5rem;
}

.footer-col a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255,255,255, 0.1);
  padding-top: var(--spacing-md);
  font-size: 0.875rem;
  color: rgba(255,255,255, 0.6);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  
  .nav-links {
    display: none; /* Hide for now, will toggle with JS */
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    gap: 1rem;
    text-align: center;
  }
  
  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }
  
  .section {
    padding: var(--spacing-md) 0;
  }
}