/* ==========================================================================
   Monsters in the Sky — Custom Steampunk Stylesheet
   ========================================================================== */

/* 1. Design Tokens & Variables */
:root {
  /* Color System */
  --color-iron-black: #12141A;
  --color-gunmetal: #1E2128;
  --color-brass: #C5943A;
  --color-brass-highlight: #E8C876;
  --color-parchment: #E8E0D0;
  --color-smoke: #9A9690;
  --color-muzzle-flash: #D4763A;
  --color-danger: #8B2E2E;

  /* Font System */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-heading: 'Cinzel', 'Times New Roman', serif;
  --font-body: 'Source Serif 4', Georgia, serif;
  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Font Sizes */
  --size-display: clamp(2.5rem, 5vw, 4rem);
  --size-h1: clamp(2rem, 4vw, 3rem);
  --size-h2: clamp(1.5rem, 3vw, 2.25rem);
  --size-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --size-h4: clamp(1.1rem, 2vw, 1.35rem);
  --size-body: clamp(1rem, 1.8vw, 1.125rem);
  --size-small: clamp(0.85rem, 1.5vw, 0.95rem);
  --size-caption: clamp(0.7rem, 1.2vw, 0.75rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  /* Transitions */
  --transition-default: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-fast: all 0.15s ease-out;
  --transition-slow: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadow & Borders */
  --border-radius: 4px;
  --border-brass-tint: 1px solid rgba(197, 148, 58, 0.2);
  --box-shadow-deep: 0 8px 32px rgba(0, 0, 0, 0.5);
  --box-shadow-brass: 0 0 15px rgba(197, 148, 58, 0.15);
}

/* 2. Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-iron-black);
  color: var(--color-parchment);
  font-family: var(--font-body);
  line-height: 1.7;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(42, 58, 82, 0.4) 0%, transparent 70%),
    radial-gradient(circle at 10% 50%, rgba(30, 33, 40, 0.8) 0%, transparent 50%);
  background-attachment: fixed;
}

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

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

a:hover {
  color: var(--color-brass-highlight);
  text-shadow: 0 0 8px rgba(232, 200, 118, 0.4);
}

/* 3. Typography & Headings */
h1, h2, h3, h4 {
  color: var(--color-brass);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-family: var(--font-display);
  font-size: var(--size-h1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: var(--size-h2);
  margin-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(197, 148, 58, 0.15);
  padding-bottom: var(--space-xs);
}

h3 {
  font-size: var(--size-h3);
  margin-bottom: var(--space-xs);
}

p {
  margin-bottom: var(--space-sm);
}

.text-center { text-align: center; }
.text-uppercase { text-transform: uppercase; }
.text-muted { color: var(--color-smoke); }

/* 4. Layout & Grid Components */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

.container-narrow {
  width: 100%;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(18, 20, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: var(--border-brass-tint);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

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

.logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--color-brass);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  flex-direction: column;
}

.logo-tagline {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  color: var(--color-smoke);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.nav-link {
  font-family: var(--font-ui);
  font-size: var(--size-small);
  font-weight: 600;
  color: var(--color-smoke);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 6px 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-brass);
  transition: var(--transition-default);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: var(--color-brass);
}

/* 5. Theme Components & Styling */
/* Brass Divider */
.divider-brass {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-brass) 15%, var(--color-brass-highlight) 50%, var(--color-brass) 85%, transparent 100%);
  margin: var(--space-lg) 0;
  border: none;
  position: relative;
}

.divider-brass::after {
  content: '♦';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-brass-highlight);
  background-color: var(--color-iron-black);
  padding: 0 10px;
  font-size: 0.8rem;
}

/* Hero Section */
.hero {
  position: relative;
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  border-bottom: var(--border-brass-tint);
  background: 
    linear-gradient(180deg, rgba(18, 20, 26, 0.2) 0%, var(--color-iron-black) 100%),
    radial-gradient(circle, rgba(42, 58, 82, 0.5) 0%, transparent 80%);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--color-parchment);
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.7);
  margin-bottom: var(--space-xs);
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  color: var(--color-brass);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  text-transform: uppercase;
}

.hero-desc {
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--size-body);
  color: var(--color-smoke);
}

/* Featured & Blog Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

/* Steampunk Cards */
.card {
  background-color: var(--color-gunmetal);
  border: var(--border-brass-tint);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow-deep);
  padding: var(--space-md);
  transition: var(--transition-default);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-brass);
  transition: var(--transition-default);
  opacity: 0.4;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(197, 148, 58, 0.4);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), var(--box-shadow-brass);
}

.card:hover::before {
  opacity: 1;
  background: linear-gradient(90deg, var(--color-brass), var(--color-brass-highlight), var(--color-brass));
}

/* Card Elements */
.card-meta {
  font-family: var(--font-ui);
  font-size: var(--size-caption);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-smoke);
  margin-bottom: var(--space-xs);
  display: flex;
  gap: var(--space-sm);
}

.card-title {
  font-size: var(--size-h3);
  margin-bottom: var(--space-sm);
}

.card-excerpt {
  color: var(--color-parchment);
  font-size: var(--size-small);
  opacity: 0.85;
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

/* Button & Link UI */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--size-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 20px;
  border-radius: 2px;
  border: 1px solid var(--color-brass);
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-brass);
  color: var(--color-iron-black);
}

.btn-primary:hover {
  background-color: var(--color-brass-highlight);
  color: var(--color-iron-black);
  box-shadow: 0 0 12px rgba(197, 148, 58, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-brass);
}

.btn-secondary:hover {
  background-color: rgba(197, 148, 58, 0.08);
  color: var(--color-brass-highlight);
}

/* Blog Article Styles */
.article-header {
  padding: var(--space-xl) 0 var(--space-md);
  text-align: center;
}

.article-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: var(--color-parchment);
}

.article-meta {
  font-family: var(--font-ui);
  font-size: var(--size-small);
  color: var(--color-smoke);
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.article-content {
  font-size: var(--size-body);
  margin-bottom: var(--space-lg);
}

.article-content p {
  margin-bottom: 1.5rem;
  text-align: justify;
}

.article-content blockquote {
  border-left: 3px solid var(--color-brass);
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-md) 0;
  background-color: var(--color-gunmetal);
  font-style: italic;
  font-size: 1.15rem;
}

.article-content ul, .article-content ol {
  margin-left: 2rem;
  margin-bottom: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

/* Footer styling */
footer {
  margin-top: auto;
  background-color: var(--color-iron-black);
  border-top: var(--border-brass-tint);
  padding: var(--space-lg) 0 var(--space-md);
  font-family: var(--font-ui);
  color: var(--color-smoke);
  font-size: var(--size-small);
}

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

.footer-col h4 {
  font-family: var(--font-heading);
  color: var(--color-brass);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 1.1rem;
}

.footer-col p {
  line-height: 1.5;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--color-smoke);
}

.footer-links a:hover {
  color: var(--color-brass);
}

.footer-bottom {
  border-top: 1px solid rgba(197, 148, 58, 0.1);
  padding-top: var(--space-md);
  text-align: center;
  font-size: var(--size-caption);
}

/* 6. Media Queries & Responsiveness */
@media (max-width: 768px) {
  .nav-menu {
    display: none; /* Mobile menu toggled by JS */
  }

  .hamburger {
    display: block;
  }

  .nav-menu.mobile-active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--color-iron-black);
    border-bottom: var(--border-brass-tint);
    padding: var(--space-md);
    gap: var(--space-sm);
    box-shadow: var(--box-shadow-deep);
  }

  .grid {
    grid-template-columns: 1fr;
  }
}