/* DesignMD-Inspired Design System - Global Styles */

:root {
  /* Primary Colors */
  --primary-blue: #3B82F6;
  --primary-hover-blue: #2563EB;
  --primary-active-blue: #1D4ED8;
  
  /* Accent Colors */
  --light-blue-1: #60A5FA;
  --light-blue-2: #93BBFD;
  --light-blue-3: #BFDBFE;
  --dark-red: #7F1D1D;
  
  /* Interactive */
  --interactive-bg-dark: #1C1C1C;
  --interactive-border-neutral: #333333;
  --interactive-border-light: #A3A3A3;
  
  /* Neutral Scale */
  --neutral-dark: #171717;
  --neutral-medium: #333333;
  --neutral-light: #A3A3A3;
  --neutral-lightest: #FAFAFA;
  
  /* Surface & Borders */
  --surface-black: #1C1C1C;
  --surface-charcoal: #1C1C1C;
  --border-dark: #333333;
  --border-light: #E5E5E5;
  --bg-light: #F0F0F0;
  --white: #FFFFFF;
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 80px;
  
  /* Border Radius */
  --radius-pill: 50px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
}

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

html, body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--neutral-dark);
  color: var(--neutral-lightest);
  line-height: 1.6;
}

/* Display / H1 */
h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 48px;
  letter-spacing: 0;
  margin-bottom: var(--spacing-lg);
  color: var(--neutral-lightest);
}

/* Heading / H2 */
h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 40px;
  letter-spacing: 0;
  margin-bottom: var(--spacing-lg);
  color: var(--neutral-lightest);
}

/* Heading / H3 */
h3 {
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
  letter-spacing: 0;
  margin-bottom: var(--spacing-md);
  color: var(--neutral-lightest);
}

/* Body Text */
p {
  font-size: 16px;
  font-weight: 400;
  line-height: 26px;
  letter-spacing: 0;
  margin-bottom: var(--spacing-md);
  color: var(--neutral-lightest);
}

/* Body Emphasis */
strong, .emphasis {
  font-weight: 600;
  font-size: 18px;
  line-height: 28px;
  color: var(--neutral-lightest);
}

/* Small / Caption */
small, .caption {
  font-size: 12px;
  font-weight: 400;
  line-height: 16px;
  color: var(--neutral-light);
}

/* Layout */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header & Navigation */
header {
  background-color: var(--surface-black);
  border-bottom: 1px solid var(--border-dark);
  padding: var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.logo:hover {
  color: var(--light-blue-1);
}

nav {
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
}

/* Primary Navigation Link */
nav a {
  background: rgba(0, 0, 0, 0);
  color: var(--neutral-lightest);
  font-size: 16px;
  font-weight: 400;
  padding: 0;
  border-radius: 0;
  border: none;
  text-decoration: none;
  position: relative;
  transition: color 0.2s ease;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--primary-blue);
  transition: width 0.3s ease;
}

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

nav a:hover::after {
  width: 100%;
}

nav a.active {
  color: var(--primary-blue);
}

nav a.active::after {
  width: 100%;
}

/* Buttons */
.btn {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

/* Primary CTA Button */
.btn-primary {
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 14px 32px;
  height: 48px;
  box-shadow: rgba(59, 130, 246, 0.3) 0px 0px 20px 0px;
}

.btn-primary:hover {
  background-color: var(--primary-hover-blue);
  box-shadow: rgba(59, 130, 246, 0.4) 0px 0px 25px 0px;
}

.btn-primary:active {
  background-color: var(--primary-active-blue);
  box-shadow: rgba(59, 130, 246, 0.2) 0px 0px 10px 0px;
}

.btn-primary:disabled {
  background-color: var(--light-blue-1);
  opacity: 0.6;
  cursor: not-allowed;
}

/* Secondary Button (Outlined) */
.btn-secondary {
  background: rgba(0, 0, 0, 0);
  color: var(--neutral-lightest);
  font-size: 16px;
  font-weight: 400;
  padding: 16px 16px;
  height: 48px;
  border: 1px solid var(--border-dark);
  box-shadow: none;
  line-height: 24px;
}

.btn-secondary:hover {
  border-color: var(--primary-blue);
  color: var(--neutral-lightest);
}

.btn-secondary:active {
  background-color: rgba(59, 130, 246, 0.1);
}

/* Ghost Button */
.btn-ghost {
  background: rgba(0, 0, 0, 0);
  color: var(--neutral-lightest);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: none;
  height: auto;
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-ghost:active {
  background-color: rgba(59, 130, 246, 0.2);
}

/* Icon Button (Circular) */
.btn-icon {
  background: rgba(0, 0, 0, 0);
  color: var(--neutral-lightest);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  border: none;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Cards & Containers */
.card {
  background-color: var(--surface-black);
  color: var(--neutral-lightest);
  font-size: 16px;
  font-weight: 400;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-dark);
  box-shadow: none;
  line-height: 24px;
  transition: all 0.2s ease;
}

.card:hover {
  border-color: #555555;
  background-color: rgba(26, 26, 26, 0.8);
}

/* Input Container / Search Box */
.input-container {
  background-color: rgba(26, 26, 26, 0.3);
  color: var(--neutral-lightest);
  font-size: 14px;
  font-weight: 400;
  padding: 4px 10px 4px 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  height: 48px;
  line-height: 20px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.input-container::placeholder {
  color: var(--neutral-light);
}

.input-container:focus-within {
  border-color: var(--primary-blue);
  background-color: rgba(26, 26, 26, 0.5);
  box-shadow: 0px 0px 20px rgba(59, 130, 246, 0.2);
}

/* Badge / Tag */
.badge {
  background-color: var(--surface-black);
  color: var(--neutral-light);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(26, 26, 26, 0.5);
  height: 30px;
  line-height: 16px;
  display: inline-block;
}

/* Inputs & Forms */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
  background-color: rgba(26, 26, 26, 0.3);
  color: var(--neutral-lightest);
  font-size: 14px;
  font-weight: 400;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-dark);
  height: 48px;
  line-height: 20px;
  font-family: inherit;
  transition: all 0.2s ease;
}

textarea {
  height: auto;
  min-height: 120px;
  padding: 12px 16px;
  resize: vertical;
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
input[type="number"]::placeholder,
textarea::placeholder {
  color: var(--neutral-light);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  border-color: var(--primary-blue);
  background-color: rgba(26, 26, 26, 0.5);
  box-shadow: 0px 0px 20px rgba(59, 130, 246, 0.2);
  outline: none;
}

input[type="text"]:invalid,
input[type="email"]:invalid,
textarea:invalid {
  border-color: var(--dark-red);
  background-color: rgba(127, 29, 29, 0.05);
}

/* Label */
label {
  font-size: 14px;
  font-weight: 500;
  color: var(--neutral-lightest);
  margin-bottom: var(--spacing-xs);
  display: block;
  line-height: 20px;
}

/* Form Group */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  margin-bottom: var(--spacing-xs);
}

/* Links */
a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--light-blue-1);
  text-decoration: underline;
}

a:active {
  color: var(--primary-active-blue);
}

/* Secondary Links */
.link-secondary {
  color: var(--neutral-light);
  font-size: 14px;
  font-weight: 400;
}

.link-secondary:hover {
  color: var(--neutral-lightest);
  text-decoration: underline;
}

.link-secondary:active {
  color: var(--primary-blue);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  font-size: 12px;
}

.breadcrumb a {
  color: var(--primary-blue);
  font-weight: 400;
}

.breadcrumb a:hover {
  color: var(--primary-hover-blue);
}

.breadcrumb span {
  color: var(--neutral-light);
}

/* Sections */
section {
  margin-bottom: var(--spacing-3xl);
  padding: var(--spacing-2xl) 0;
}

section:first-child {
  padding-top: 0;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-4xl) var(--spacing-lg);
  margin-bottom: var(--spacing-3xl);
}

.hero h1 {
  margin-bottom: var(--spacing-lg);
}

.hero p {
  font-size: 18px;
  line-height: 28px;
  margin-bottom: var(--spacing-xl);
  color: var(--neutral-light);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
  gap: var(--spacing-md);
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  justify-content: center;
  align-items: center;
}

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

.flex-wrap {
  flex-wrap: wrap;
}

/* Footer */
footer {
  background-color: var(--surface-black);
  border-top: 1px solid var(--border-dark);
  padding: var(--spacing-2xl) var(--spacing-lg);
  margin-top: auto;
}

footer .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

footer .footer-section h3 {
  font-size: 16px;
  margin-bottom: var(--spacing-md);
}

footer .footer-section p,
footer .footer-section a {
  font-size: 14px;
  color: var(--neutral-light);
  line-height: 24px;
}

footer .footer-section a:hover {
  color: var(--primary-blue);
}

footer .footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--neutral-light);
  font-size: 14px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Depth & Elevation */
.shadow-hover {
  box-shadow: rgba(59, 130, 246, 0.2) 0px 0px 10px 0px;
  transition: box-shadow 0.2s ease;
}

.shadow-hover:hover {
  box-shadow: rgba(59, 130, 246, 0.3) 0px 0px 20px 0px;
}

.shadow-raised {
  box-shadow: rgba(59, 130, 246, 0.3) 0px 0px 20px 0px;
}

.shadow-floating {
  box-shadow: 0px 10px 15px -3px rgba(0, 0, 0, 0.2), 0px 4px 6px -4px rgba(0, 0, 0, 0.2);
}

/* Image Styles */
img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.img-circle {
  border-radius: 50%;
  width: 100px;
  height: 100px;
  object-fit: cover;
}

.img-thumbnail {
  border: 1px solid var(--border-dark);
  padding: 4px;
  border-radius: var(--radius-md);
}

/* Gallery Grid */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  aspect-ratio: 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--surface-black);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
}

.social-links a:hover {
  border-color: var(--primary-blue);
  background-color: rgba(59, 130, 246, 0.1);
}

.social-links img {
  width: 20px;
  height: 20px;
  border-radius: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  main {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  header .container {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  nav {
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
  }

  h1 {
    font-size: 36px;
    line-height: 40px;
  }

  h2 {
    font-size: 24px;
    line-height: 32px;
  }

  h3 {
    font-size: 20px;
    line-height: 28px;
  }

  .hero {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  main {
    padding: var(--spacing-md);
  }

  h1 {
    font-size: 28px;
    line-height: 32px;
  }

  h2 {
    font-size: 20px;
    line-height: 28px;
  }

  p {
    font-size: 14px;
    line-height: 22px;
  }

  .btn {
    width: 100%;
  }

  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.text-muted {
  color: var(--neutral-light);
}

.text-primary {
  color: var(--primary-blue);
}

.text-white {
  color: var(--white);
}

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-pill { border-radius: var(--radius-pill); }

.border { border: 1px solid var(--border-dark); }
.border-top { border-top: 1px solid var(--border-dark); }
.border-bottom { border-bottom: 1px solid var(--border-dark); }

.hidden { display: none; }
.visible { display: block; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }