/* ============================================================
   DarkCV — Terminal Developer Portfolio
   ============================================================ */

/* ---------- Palette Tokens ---------- */
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #141414;
  --bg-card: #1A1A1A;
  --bg-card-hover: #222;
  --accent: #00FF88;
  --accent-dim: rgba(0, 255, 136, 0.15);
  --accent-glow: rgba(0, 255, 136, 0.35);
  --text-primary: #E0E0E0;
  --text-secondary: #6B7280;
  --text-muted: #4B5563;
  --border: #2A2A2A;
  --border-accent: #00FF8833;
  --danger: #FF4444;
  --warning: #FFAA00;
  --info: #38BDF8;
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --font-code: 'Fira Code', monospace;
  --radius: 6px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --scanline: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 255, 136, 0.03) 2px,
    rgba(0, 255, 136, 0.03) 4px
  );
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #33FFB0; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---------- Utility ---------- */
.container { width: 90%; max-width: var(--max-width); margin: 0 auto; }
.section { padding: 80px 0; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2rem);
  color: var(--accent);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.section-title::before { content: '> '; color: var(--text-secondary); }
.section-subtitle {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 48px;
}
.glow-text { text-shadow: 0 0 20px var(--accent-glow); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ---------- Reveal (fade-up on scroll) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Scan-line overlay ---------- */
.scanlines::after {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--scanline);
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.logo span { color: var(--text-primary); }
.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
/* Burger */
.burger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.burger span {
  display: block; width: 24px; height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}
.burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav */
@media (max-width: 768px) {
  .burger { display: flex; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 24px;
    gap: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
}

/* ---------- Hero (Terminal) ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 768px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
}
.terminal-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 0 40px rgba(0,255,136,0.08);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #1E1E1E;
  border-bottom: 1px solid var(--border);
}
.terminal-dot {
  width: 10px; height: 10px; border-radius: 50%;
}
.terminal-dot.red { background: #FF5F56; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #27C93F; }
.terminal-bar span {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-left: 8px;
}
.terminal-body {
  padding: 32px;
  font-family: var(--font-code);
  font-size: 0.95rem;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.terminal-line { color: var(--text-secondary); }
.terminal-line .prompt { color: var(--accent); }
.terminal-line .cmd { color: var(--text-primary); }
.cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}
.hero-content { display: flex; flex-direction: column; gap: 24px; }
.hero-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
}
.hero-name .highlight { color: var(--accent); }
.hero-subtitle {
  font-family: var(--font-code);
  font-size: 1.1rem;
  color: var(--text-secondary);
}
.typing-wrapper {
  font-family: var(--font-code);
  font-size: 1.1rem;
  color: var(--accent);
  margin-top: 8px;
  min-height: 1.5em;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
@media (max-width: 768px) {
  .hero-actions { justify-content: center; }
}
.profile-frame {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  overflow: hidden;
  box-shadow: 0 0 30px var(--accent-glow), 0 0 60px var(--accent-dim);
  margin: 0 auto;
}
.profile-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: var(--bg-primary);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}
.about-text { font-size: 1rem; color: var(--text-secondary); line-height: 1.8; }
.about-text p { margin-bottom: 16px; }
.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.about-meta-item {
  display: flex;
  gap: 8px;
  font-size: 0.9rem;
}
.about-meta-item .label {
  font-family: var(--font-display);
  color: var(--accent);
  min-width: 90px;
  font-size: 0.8rem;
}
.about-meta-item .value { color: var(--text-primary); }
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
@media (max-width: 768px) {
  .stats-row { grid-template-columns: 1fr; }
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--accent); }
.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ---------- Skills ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-dim);
}
.skill-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.skill-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--text-primary);
}
.skill-percent {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent);
}
.skill-bar {
  height: 6px;
  background: var(--bg-secondary);
  border-radius: 3px;
  overflow: hidden;
}
.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #33FFB0);
  border-radius: 3px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.skill-card .skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.skill-tag {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-secondary);
  background: var(--accent-dim);
  padding: 3px 8px;
  border-radius: 3px;
}

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 255, 136, 0.1);
}
.project-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-thumb img { transform: scale(1.05); }
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 10, 0.85);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay .code-snippet {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(0,0,0,0.5);
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid var(--border-accent);
  margin-bottom: 12px;
  white-space: pre;
  overflow: hidden;
}
.project-overlay .links { display: flex; gap: 12px; }
.project-overlay .links a {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-primary);
  padding: 6px 12px;
  border: 1px solid var(--text-secondary);
  border-radius: 4px;
  transition: var(--transition);
}
.project-overlay .links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.project-info { padding: 20px; }
.project-info h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin-bottom: 6px;
}
.project-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.project-tags span {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 3px 8px;
  border-radius: 3px;
}

/* ---------- Experience Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 40px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 48px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -34px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-glow);
}
.timeline-date {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 6px;
}
.timeline-item h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.timeline-item .company {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color var(--transition);
}
.testimonial-card:hover { border-color: var(--accent); }
.testimonial-card .quote-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
  font-family: var(--font-display);
}
.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-author img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
}
.testimonial-author .name {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-primary);
}
.testimonial-author .role {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
}
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--accent);
}
.contact-item .label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.contact-item .value {
  font-size: 0.9rem;
  color: var(--text-primary);
}
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-group label .prompt-char { color: var(--accent); }
.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-code);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-dim); }
textarea.form-input { min-height: 140px; resize: vertical; }
.form-status {
  font-family: var(--font-code);
  font-size: 0.8rem;
  margin-top: 10px;
  min-height: 1.2em;
}
.form-status.success { color: var(--accent); }
.form-status.error { color: var(--danger); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  text-align: center;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}
.footer-links a {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.footer-links a:hover { color: var(--accent); }
.footer-copy {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer-socials {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}
.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent-dim);
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 42px;
  height: 42px;
  background: var(--accent);
  color: var(--bg-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  z-index: 900;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
}
.back-to-top:hover {
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-2px);
}

/* ---------- About Page ---------- */
.about-hero {
  padding-top: 120px;
  padding-bottom: 60px;
}
.about-hero-content {
  max-width: 700px;
}
.about-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
@media (max-width: 768px) {
  .about-detail-grid { grid-template-columns: 1fr; }
}
.about-full-text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
}
.about-full-text p { margin-bottom: 20px; }
.about-image {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Projects Page ---------- */
.projects-hero { padding-top: 120px; padding-bottom: 60px; }
.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.filter-btn {
  font-family: var(--font-display);
  font-size: 0.8rem;
  padding: 8px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ---------- Contact Page ---------- */
.contact-hero { padding-top: 120px; padding-bottom: 60px; }
.cta-terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  margin-top: 60px;
}
.cta-terminal h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 8px;
}
.cta-terminal p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  padding-top: 120px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
}
.page-hero p {
  font-family: var(--font-code);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* ---------- Responsive Grid for about page meta ---------- */
.about-meta-full {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 480px) {
  .about-meta-full { grid-template-columns: 1fr; }
}

/* ---------- Accordion for FAQ ---------- */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--bg-card);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: color var(--transition);
}
.faq-question:hover { color: var(--accent); }
.faq-question .arrow {
  transition: transform var(--transition);
  color: var(--accent);
}
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer-inner {
  padding: 0 20px 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}