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

:root {
  /* Colors */
  --background: #0b1326;
  --on-background: #dae2fd;
  --surface: #0b1326;
  --on-surface: #dae2fd;
  --surface-dim: #0b1326;
  --surface-bright: #31394d;
  --surface-container-lowest: #060e20;
  --surface-container-low: #131b2e;
  --surface-container: #171f33;
  --surface-container-high: #222a3d;
  --surface-container-highest: #2d3449;
  --surface-variant: #2d3449;
  --on-surface-variant: #b9caca;
  --outline: #849495;
  --outline-variant: #3a494a;
  
  --primary: #e9feff;
  --on-primary: #003739;
  --primary-container: #00f5ff;
  --on-primary-container: #006c71;
  --primary-fixed: #63f7ff;
  --on-primary-fixed: #002021;
  --primary-fixed-dim: #00dce5;
  --on-primary-fixed-variant: #004f53;

  --secondary: #4edea3;
  --on-secondary: #003824;
  --secondary-container: #00a572;
  --on-secondary-container: #00311f;
  --secondary-fixed: #6ffbbe;
  --on-secondary-fixed: #002113;
  --secondary-fixed-dim: #4edea3;
  --on-secondary-fixed-variant: #005236;

  /* Typography */
  --font-family-headline: 'Inter', sans-serif;
  --font-family-body: 'Inter', sans-serif;
  --font-family-code: 'JetBrains Mono', monospace;

  /* Layout */
  --max-width: 1280px;
  --padding-mobile: 16px;
  --padding-desktop: 64px;
  --gutter: 24px;
}

body {
  font-family: var(--font-family-body);
  background-color: var(--background);
  color: var(--on-background);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background-color: var(--primary-container);
  color: var(--on-primary-container);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* Typography Classes */
.text-primary { color: var(--primary); }
.text-on-surface { color: var(--on-surface); }
.text-on-surface-variant { color: var(--on-surface-variant); }
.text-secondary { color: var(--secondary); }
.text-secondary-fixed-dim { color: var(--secondary-fixed-dim); }
.text-primary-fixed-dim { color: var(--primary-fixed-dim); }
.text-primary-container { color: var(--primary-container); }
.text-on-primary-container { color: var(--on-primary-container); }
.text-outline { color: var(--outline); }

.bg-surface { background-color: var(--surface); }
.bg-surface-container-lowest { background-color: var(--surface-container-lowest); }
.bg-surface-container-low { background-color: var(--surface-container-low); }
.bg-surface-container { background-color: var(--surface-container); }
.bg-surface-container-highest { background-color: var(--surface-container-highest); }
.bg-surface-bright { background-color: var(--surface-bright); }
.bg-primary-container { background-color: var(--primary-container); }
.bg-secondary-container { background-color: var(--secondary-container); }

.border-outline-variant { border-color: var(--outline-variant); }

/* Typography Mixins */
.font-headline-lg {
  font-family: var(--font-family-headline);
  font-size: 48px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.font-headline-md {
  font-family: var(--font-family-headline);
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.font-body-lg {
  font-size: 18px;
  line-height: 1.6;
}
.font-body-md {
  font-size: 16px;
  line-height: 1.5;
}
.font-label-caps {
  font-family: var(--font-family-code);
  font-size: 12px;
  line-height: 1.0;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
}
.font-code-sm {
  font-family: var(--font-family-code);
  font-size: 14px;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .font-headline-lg {
    font-size: 32px;
    line-height: 1.2;
  }
}

/* Layout Classes */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--padding-mobile);
  padding-right: var(--padding-mobile);
}
@media (min-width: 768px) {
  .container {
    padding-left: var(--padding-desktop);
    padding-right: var(--padding-desktop);
  }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.gap-gutter { gap: var(--gutter); }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .md\:col-span-7 { grid-column: span 7 / span 7; }
  .md\:col-span-5 { grid-column: span 5 / span 5; }
  .md\:col-span-8 { grid-column: span 8 / span 8; }
  .md\:col-span-4 { grid-column: span 4 / span 4; }
  .md\:col-span-6 { grid-column: span 6 / span 6; }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Components */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background-color: rgba(11, 19, 38, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-variant);
  transition: all 0.2s ease-in-out;
}
.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}
.nav-links {
  display: none;
}
@media (min-width: 768px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
  }
}
.nav-link {
  color: var(--on-surface-variant);
  transition: color 0.3s;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary-fixed-dim);
}
.nav-link.active {
  color: var(--primary);
  font-weight: bold;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 4px;
}
.menu-toggle {
  display: block;
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
}
@media (min-width: 768px) {
  .menu-toggle { display: none; }
}

.main-content {
  flex-grow: 1;
  padding-top: 100px;
  padding-bottom: 96px;
}

.footer {
  background-color: var(--surface-container-lowest);
  width: 100%;
  padding-top: 48px;
  padding-bottom: 48px;
  border-top: 1px solid var(--outline-variant);
  margin-top: auto;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  gap: var(--gutter);
}
@media (min-width: 768px) {
  .footer-inner { flex-direction: row; }
}
.footer-links a {
  opacity: 0.8;
  transition: opacity 0.3s, color 0.3s;
}
.footer-links a:hover {
  opacity: 1;
  color: var(--secondary-fixed);
}

/* Utilities */
.rounded { border-radius: 0.25rem; }
.rounded-sm { border-radius: 0.125rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }

.px-2 { padding-left: 8px; padding-right: 8px; }
.py-1 { padding-top: 4px; padding-bottom: 4px; }
.px-3 { padding-left: 12px; padding-right: 12px; }
.py-1-5 { padding-top: 6px; padding-bottom: 6px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.px-6 { padding-left: 24px; padding-right: 24px; }
.p-6 { padding: 24px; }
.p-8 { padding: 32px; }
.pt-16 { padding-top: 64px; }

.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mb-12 { margin-bottom: 48px; }
.mb-16 { margin-bottom: 64px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }

.border { border: 1px solid var(--outline-variant); }
.border-b { border-bottom: 1px solid var(--outline-variant); }
.border-t { border-top: 1px solid var(--outline-variant); }
.border-l { border-left: 1px solid var(--outline-variant); }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }

.text-center { text-align: center; }
.uppercase { text-transform: uppercase; }
.tracking-widest { letter-spacing: 0.1em; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

/* Custom Additions */
.bg-blueprint {
  background-size: 40px 40px;
  background-image:
    linear-gradient(to right, rgba(58, 73, 74, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(58, 73, 74, 0.1) 1px, transparent 1px);
}

.card {
  background-color: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: 0.5rem;
  padding: 24px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0px 10px 25px rgba(0, 245, 255, 0.15);
  border-color: var(--primary-fixed-dim);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  font-family: var(--font-family-code);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 16px 32px;
  border-radius: 0.25rem;
  transition: all 0.3s ease;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.2);
}
.btn-primary:hover {
  background-color: var(--primary);
  box-shadow: 0 0 25px rgba(0, 245, 255, 0.5);
  transform: scale(1.02);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--primary-container);
  font-family: var(--font-family-code);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 30px;
  border-radius: 0.25rem;
  transition: all 0.3s ease;
  font-weight: 700;
  border: 2px solid var(--primary-container);
  cursor: pointer;
}
.btn-secondary:hover {
  background-color: rgba(0, 245, 255, 0.1);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}
.btn-glow::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.btn-glow:hover::before {
  opacity: 1;
}

/* Form Styles */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}
.form-label {
  font-family: var(--font-family-code);
  font-size: 12px;
  color: var(--on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.form-input {
  background-color: rgba(23, 31, 51, 0.5);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface);
  font-family: var(--font-family-body);
  font-size: 16px;
  padding: 16px;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  width: 100%;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary-container);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.1);
  background-color: rgba(23, 31, 51, 0.8);
}
textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

/* Project Card Specific */
.project-card .card-hint {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px;
  background: linear-gradient(to top, var(--primary-fixed-dim), transparent);
  color: var(--surface-container-lowest);
  font-family: var(--font-family-code);
  font-size: 14px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: center;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  opacity: 0;
}
.project-card:hover .card-hint {
  transform: translateY(0);
  opacity: 1;
}


/* Material Icons configuration */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}
.icon-filled {
  font-variation-settings: 'FILL' 1;
}

/* Specific elements */
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--secondary);
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .5; }
}