/* ============================================================
   components.css — Section-level components
   ============================================================ */

/* ============================
   HERO
   ============================ */
#hero {
  min-height: 100vh;
  display: grid;
  place-content: center;
  padding-top: var(--space-10);
  position: relative;
  overflow: hidden;
}

/* subtle grid texture */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.hero-name {
  font-family: var(--font-heading);
  font-size: var(--fs-4xl);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--text);
  margin-bottom: var(--space-4);
}

.hero-tagline {
  font-size: var(--fs-lg);
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 560px;
  margin-bottom: var(--space-7);
  font-weight: 400;
}

.hero-tagline strong {
  color: var(--text);
  font-weight: 500;
}

.hero-meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  margin-bottom: var(--space-6);
  letter-spacing: 0.06em;
}

.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  transition: all var(--duration-s) ease;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
}

.btn-outline:hover {
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

/* ── Scroll indicator ── */
.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-5);
  left: var(--container-padding);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.scroll-line {
  width: 40px;
  height: 1px;
  background: var(--text-dim);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--accent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0% { left: -100%; }
  50% { left: 0%; }
  100% { left: 100%; }
}

/* ============================
   ABOUT
   ============================ */
#about .about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-8);
  align-items: start;
}

.about-body p {
  color: var(--text-muted);
  margin-bottom: var(--space-3);
  font-size: var(--fs-md);
  line-height: 1.75;
}

.about-body p strong {
  color: var(--text);
  font-weight: 500;
}

.about-sidebar {
  border-left: 1px solid var(--border);
  padding-left: var(--space-5);
}

.about-facts {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.fact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fact-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.fact-value {
  font-size: var(--fs-sm);
  color: var(--text);
}

/* ============================
   EXPERIENCE
   ============================ */
#experience .exp-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
}

#experience .exp-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--accent);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.exp-role {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.exp-company {
  font-size: var(--fs-sm);
  color: var(--accent);
  margin-top: 4px;
}

.exp-date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  white-space: nowrap;
  margin-top: 6px;
}

.exp-bullets {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.exp-bullets li {
  position: relative;
  padding-left: var(--space-3);
  color: var(--text-muted);
  font-size: var(--fs-base);
  line-height: 1.65;
}

.exp-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8em;
  top: 3px;
}

/* ============================
   PROJECTS
   ============================ */
#projects .projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* Featured project — full width */
.project-card.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color var(--duration-m) ease,
              transform var(--duration-m) var(--ease-out);
}

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

.project-card.featured:hover {
  transform: translateY(-2px);
}

/* Featured visual pane */
.project-visual {
  background: var(--bg-3);
  display: grid;
  place-items: center;
  padding: var(--space-7);
  position: relative;
  overflow: hidden;
  min-height: 260px;
}

.project-visual-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.project-metric {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}

.project-metric-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.project-metrics-row {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
}

.project-visual-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.08em;
}

/* Project body */
.project-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.project-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.project-tagline {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

.project-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: var(--space-1);
}

.project-bullets li {
  position: relative;
  padding-left: var(--space-3);
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.project-bullets li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-dim);
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: var(--space-3);
}

.stack-tag {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  background: var(--bg-3);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.05em;
}

.project-links {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
  align-items: center;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  transition: color var(--duration-s) ease;
}

.project-link:hover {
  color: var(--accent);
}

.project-link svg {
  width: 14px;
  height: 14px;
}

/* ============================
   SKILLS
   ============================ */
#skills .skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.skill-group-heading {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.skill-list li {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: color var(--duration-s) ease;
}

.skill-list li:last-child {
  border-bottom: none;
}

.skill-list li:hover {
  color: var(--text);
}

.skill-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ============================
   EDUCATION
   ============================ */
#education .edu-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.edu-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 var(--space-5);
  padding-bottom: var(--space-5);
  position: relative;
}

.edu-item:last-child {
  padding-bottom: 0;
}

/* Timeline vertical line */
.edu-timeline {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
}

.edu-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--bg-2);
  border: 2px solid var(--border-2);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: border-color var(--duration-s) ease;
}

.edu-item:hover .edu-dot {
  border-color: var(--accent);
}

.edu-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  margin-top: 4px;
}

.edu-item:last-child .edu-line {
  display: none;
}

.edu-content {
  padding-bottom: var(--space-1);
}

.edu-school {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.edu-degree {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: 2px;
}

.edu-meta {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

.edu-year {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.edu-grade {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--accent);
  letter-spacing: 0.06em;
}

/* ============================
   CONTACT
   ============================ */
#contact .contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
}

.contact-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: var(--space-4);
}

.contact-intro {
  font-size: var(--fs-md);
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-2);
  transition: border-color var(--duration-m) ease, transform var(--duration-m) var(--ease-out);
  text-decoration: none;
}

.contact-link-item:hover {
  border-color: var(--border-2);
  transform: translateX(4px);
}

.contact-link-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--bg-3);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-link-icon svg {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.contact-link-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.contact-link-value {
  font-size: var(--fs-sm);
  color: var(--text);
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 900px) {
  #about .about-grid {
    grid-template-columns: 1fr;
  }

  .about-sidebar {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: var(--space-5);
  }

  .about-facts {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  #projects .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card.featured {
    grid-template-columns: 1fr;
  }

  .project-visual {
    min-height: 200px;
  }

  #skills .skills-grid {
    grid-template-columns: 1fr 1fr;
  }

  #contact .contact-inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 600px) {
  .hero-name {
    letter-spacing: -0.03em;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  #skills .skills-grid {
    grid-template-columns: 1fr;
  }

  .project-metrics-row {
    gap: var(--space-4);
  }

  .exp-header {
    flex-direction: column;
  }
}