/* ========================================
   TERMINAL-RESUME THEME
   xAI-Inspired Brutalist Design System
   ======================================== */

/* --- Custom Properties --- */
:root {
  --bg-dark: #1f2228;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --text-subtle: rgba(255, 255, 255, 0.3);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --focus-ring: rgb(59, 130, 246);

  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Inter', sans-serif;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;
}

/* --- Font Faces --- */
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-Light.woff2') format('woff2');
  font-weight: 300 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-LightExt.woff2') format('woff2');
  font-weight: 300 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Light.woff2') format('woff2');
  font-weight: 300 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-LightExt.woff2') format('woff2');
  font-weight: 300 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--text-primary);
  color: var(--bg-dark);
  font-family: var(--font-mono);
  font-size: 14px;
  text-decoration: none;
  z-index: 9999;
}

.skip-link:focus {
  top: var(--spacing-md);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: normal;
}

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

a:hover {
  color: var(--text-secondary);
}

/* Focus States */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 var(--spacing-2xl);
  z-index: 1000;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--text-muted);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: var(--spacing-sm);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) var(--spacing-2xl);
  padding-top: calc(64px + var(--spacing-3xl));
}

.hero-inner {
  text-align: center;
  max-width: 800px;
}

.hero-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-strong);
  margin-bottom: var(--spacing-lg);
}

.hero-photo-placeholder {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 2px dashed var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  color: var(--text-muted);
}

.hero-name {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 300;
  line-height: 1.3;
  letter-spacing: normal;
  margin-bottom: var(--spacing-md);
}

.hero-role {
  font-family: var(--font-sans);
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.hero-tagline {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.hero-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
}



.hero-social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.social-link {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.social-link:hover {
  color: var(--text-primary);
}

/* --- Buttons --- */
.btn-primary {
  display: inline-block;
  background: var(--text-primary);
  color: var(--bg-dark);
  padding: 12px 24px;
  border: none;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease;
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  color: var(--bg-dark);
}

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--text-primary);
  padding: 12px 24px;
  border: 1px solid var(--border-strong);
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: rgba(255, 255, 255, 0.3);
}

/* --- Resume Section --- */
.resume-section {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--spacing-4xl) var(--spacing-2xl);
}

.section-block {
  margin-bottom: var(--spacing-4xl);
}

.section-block:last-child {
  margin-bottom: 0;
}

.section-heading {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-default);
}

/* --- Timeline --- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.timeline-entry {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--spacing-lg);
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
  padding-top: 4px;
}

.timeline-title {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.timeline-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.meta-separator {
  margin: 0 var(--spacing-sm);
}

.timeline-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.timeline-highlights {
  list-style: none;
  padding: 0;
  margin: var(--spacing-sm) 0 0 0;
}

.timeline-highlights li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.timeline-highlights li::before {
  content: '≫';
  position: absolute;
  left: 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.timeline-highlights li:last-child {
  margin-bottom: 0;
}

/* --- Projects --- */
.project-entry {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--spacing-lg);
}

/* --- Education --- */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.education-card {
  background: var(--surface);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  padding: var(--spacing-lg);
}

.education-degree {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 400;
  margin-bottom: var(--spacing-xs);
}

.education-school {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.education-year {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* --- Skills --- */
.skills-groups {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.skill-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.skill-category-heading {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  color: var(--text-primary);
  margin: 0;
}

.skill-category-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.skill-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Contact --- */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-secondary);
  padding: var(--spacing-md);
  border: 1px solid var(--border-default);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.contact-item:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  color: var(--text-primary);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border-default);
  padding: var(--spacing-2xl) var(--spacing-2xl);
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-muted);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-link {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-primary);
}

/* --- Single Content --- */
.single-content {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(64px + var(--spacing-4xl)) var(--spacing-2xl) var(--spacing-4xl);
}

/* --- Responsive --- */
@media (max-width: 1023px) {
  .timeline-entry,
  .project-entry {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .timeline-period {
    padding-top: 0;
  }
}

@media (max-width: 767px) {
  .navbar {
    padding: 0 var(--spacing-md);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-default);
    padding: var(--spacing-md);
    gap: 0;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-link {
    padding: var(--spacing-md);
    display: block;
    border-bottom: 1px solid var(--border-default);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .hero-name {
    font-size: 48px;
  }

  .hero {
    padding: var(--spacing-3xl) var(--spacing-md);
    padding-top: calc(64px + var(--spacing-2xl));
  }

  .resume-section {
    padding: var(--spacing-3xl) var(--spacing-md);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .hero-social {
    gap: var(--spacing-md);
  }
}

@media (max-width: 479px) {
  .hero-name {
    font-size: 36px;
  }

  .section-heading {
    font-size: 24px;
  }

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

/* --- Mobile Menu Toggle Script (inline) --- */