/* ===== CSS Variables - Terminal Theme ===== */
:root {
  --bg-dark: #0a0e14;
  --bg-card: #0d1117;
  --bg-elevated: #161b22;
  --border: #21262d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --cyan: #39c5cf;
  --cyan-dim: #26a0a8;
  --green: #3fb950;
  --green-bright: #56d364;
  --amber: #d29922;
  --red: #f85149;
  --purple: #a371f7;
  --blue: #58a6ff;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Outfit', system-ui, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-dark);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

::selection {
  background: rgba(57, 197, 207, 0.3);
  color: var(--text);
}

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

a:hover {
  color: var(--cyan-dim);
  text-decoration: underline;
}

/* ===== Matrix Canvas ===== */
#matrix-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.15;
}

/* ===== Noise Overlay ===== */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-brand .nav-prompt {
  font-size: 0.9rem;
  color: var(--green);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: lowercase;
}

.nav-links a:hover {
  color: var(--cyan);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
}

/* ===== Main Content ===== */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  padding-top: 6rem;
  position: relative;
  z-index: 2;
}

/* ===== Hero / Terminal ===== */
.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 0;
  align-items: center;
}

.hero-profile {
  margin-bottom: 2rem;
}

.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
  box-shadow: 0 0 0 1px rgba(57, 197, 207, 0.2), 0 0 40px rgba(57, 197, 207, 0.15);
  transition: box-shadow var(--transition);
}

.profile-photo:hover {
  box-shadow: 0 0 0 2px var(--cyan-dim), 0 0 50px rgba(57, 197, 207, 0.25);
}

.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: var(--red); }
.terminal-dot.yellow { background: var(--amber); }
.terminal-dot.green { background: var(--green); }

.terminal-title {
  margin-left: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 2rem;
}

.terminal-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 1rem;
}

.prompt {
  color: var(--green);
  margin-right: 0.5rem;
}

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

.cursor {
  color: var(--cyan);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

@keyframes blink {
  50% { opacity: 0; }
}

.terminal-output {
  margin-top: 1.5rem;
  opacity: 0;
  animation: fadeIn 0.5s ease 2s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.output-line {
  margin: 0.25rem 0;
  font-size: 0.95rem;
}

.output-line.indent {
  padding-left: 1.5rem;
}

.output-line .keyword { color: var(--purple); }
.output-line .var { color: var(--cyan); }
.output-line .prop { color: var(--blue); }
.output-line .string { color: var(--green); }

.scroll-hint {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: float 2s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 1.5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ===== Sections ===== */
.section {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.section-title .comment {
  color: var(--text-muted);
  font-weight: 400;
}

/* ===== Code Block ===== */
.code-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.code-filename {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.code-lang {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.code-content {
  padding: 1.5rem 2rem;
  font-size: 0.9rem;
  line-height: 1.8;
  white-space: pre-wrap;
  overflow-x: auto;
}

.code-content .comment { color: var(--text-muted); }
.code-content .keyword { color: var(--purple); }
.code-content .var { color: var(--cyan); }
.code-content .prop { color: var(--blue); }
.code-content .string { color: var(--green); }
.code-content .num { color: var(--amber); }
.code-content .highlight { color: var(--cyan); }

/* ===== Job Cards ===== */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.job-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.job-card:hover {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 1px rgba(57, 197, 207, 0.1);
}

.job-card[data-aos] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), box-shadow var(--transition);
}

.job-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.job-card:nth-child(1) { transition-delay: 0s; }
.job-card:nth-child(2) { transition-delay: 0.05s; }
.job-card:nth-child(3) { transition-delay: 0.1s; }
.job-card:nth-child(4) { transition-delay: 0.15s; }
.job-card:nth-child(5) { transition-delay: 0.2s; }

.job-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-bottom: 0.75rem;
}

.job-company {
  color: var(--cyan);
  font-weight: 500;
}

.job-role {
  color: var(--text);
}

.job-period {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.job-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.job-tags span {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-muted);
}

.job-achievements {
  list-style: none;
  padding-left: 0;
}

.job-achievements li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
}

.job-achievements li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: bold;
}

.job-card.leadership .job-achievements li::before {
  content: "◆";
  color: var(--amber);
}

/* ===== Project Cards ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}

.project-card[data-aos] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition);
}

.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.project-card:nth-child(1) { transition-delay: 0s; }
.project-card:nth-child(2) { transition-delay: 0.1s; }

.project-card.featured {
  border-color: var(--amber);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(210, 153, 34, 0.05) 100%);
}

.project-badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--amber);
  margin-bottom: 0.75rem;
}

.project-name {
  font-size: 1.25rem;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tech span {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-muted);
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.skill-category[data-aos] {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.skill-category.visible {
  opacity: 1;
  transform: translateY(0);
}

.skill-category:nth-child(1) { transition-delay: 0s; }
.skill-category:nth-child(2) { transition-delay: 0.05s; }
.skill-category:nth-child(3) { transition-delay: 0.1s; }
.skill-category:nth-child(4) { transition-delay: 0.15s; }

.skill-label {
  display: block;
  font-size: 0.8rem;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.skill-items {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ===== Drive Section ===== */
.drive-block .code-content {
  font-size: 0.85rem;
}

/* ===== Contact ===== */
.contact-section {
  padding-bottom: 2rem;
}

.contact-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.contact-terminal .terminal-body {
  padding: 2rem;
}

.contact-terminal .terminal-line.mt {
  margin-top: 1.5rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  color: var(--text) !important;
  transition: background var(--transition), color var(--transition);
}

.contact-link:hover {
  background: rgba(57, 197, 207, 0.1);
  color: var(--cyan) !important;
  text-decoration: none !important;
}

.link-icon {
  font-size: 1.1rem;
  width: 2rem;
  text-align: center;
}

.blink {
  animation: blink 1s step-end infinite;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer p {
  margin-bottom: 0.25rem;
}

.copyright {
  font-size: 0.8rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav {
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-dark);
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 0.5rem;
  }

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

  .nav-toggle {
    display: flex;
  }

  main {
    padding: 1rem;
    padding-top: 5rem;
  }

  .terminal-body,
  .code-content {
    padding: 1rem 1.25rem;
  }

  .output-line {
    font-size: 0.85rem;
  }

  .job-card,
  .project-card {
    padding: 1.25rem 1.5rem;
  }
}