/* === Variables (mirrors Adverse design system) === */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f1f3f5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a68;
  --text-muted: #6b7280;
  --border-light: #e5e7eb;
  --border-hover: #d1d5db;
  --accent: #0066ff;
  --accent-dark: #0052cc;
  --accent-light: #e8f0fe;
  --accent-border: rgba(0, 102, 255, 0.3);
  --accent-bg-subtle: rgba(0, 102, 255, 0.15);
  --success: #22c55e;
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --radius-full: 999px;
  --font: 'Inter', sans-serif;
  --transition: 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  justify-content: center;
  padding: 0 16px 32px;
}

.container {
  width: 100%;
  max-width: 1140px;
  padding: 0 24px;
  margin-top: 24px;
}

/* === Hero === */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  margin-top: 32px;
  margin-bottom: 48px;
  padding: 48px 24px 40px;
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid var(--accent-border);
}

.hero h1 {
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 560px;
}

.hero-accent { color: var(--accent); }

.hero-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn--primary {
  color: #fff;
  background: var(--accent);
  box-shadow: var(--card-shadow);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--card-shadow-hover);
  background: var(--accent-dark);
}

.btn--ghost {
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--card-border);
}
.btn--ghost:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.hero-caps {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero-cap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.hero-cap i { color: var(--accent); }

/* === Section === */
.section { margin-bottom: 48px; }

.section-title {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  display: inline-block;
  padding-bottom: 8px;
  margin-bottom: 24px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: var(--radius-full);
}

/* === Skills Grid === */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.skill-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
}
.skill-box:hover {
  border-color: var(--border-hover);
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}

.skill-box h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.skill-box h4 i {
  color: var(--accent);
  font-size: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-tag {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  font-weight: 500;
}

/* === Experience Timeline === */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.exp-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition);
}
.exp-card:hover {
  border-color: var(--border-hover);
  border-left-color: var(--accent);
  box-shadow: var(--card-shadow-hover);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.exp-title {
  font-size: 1rem;
  font-weight: 600;
}
.exp-company {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
}

.exp-date {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.exp-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.exp-card li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}
.exp-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

/* === Projects Grid === */
.project-group {
  margin-bottom: 32px;
}
.project-group:last-child {
  margin-bottom: 0;
}
.project-group-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition);
  box-shadow: var(--card-shadow);
  position: relative;
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
}

.project-thumb {
  height: 120px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb i {
  font-size: 2rem;
  color: #fff;
  opacity: 0.4;
}

.project-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-title {
  font-size: 1rem;
  font-weight: 600;
}

.project-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.project-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  font-weight: 500;
}

.project-link-icon {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.6);
}

/* === Education === */
.edu-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.edu-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
}
.edu-card strong {
  font-size: 1rem;
  display: block;
  margin-bottom: 4px;
}
.edu-card span {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.cert-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cert-list li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.cert-list li i {
  color: var(--accent);
  font-size: 0.75rem;
}

.edu-meta {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.cert-date {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* === Footer === */
footer {
  text-align: center;
  margin-top: 48px;
  padding: 32px 24px;
  background: var(--bg-primary);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* === Responsive === */
@media (max-width: 900px) {
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  body { padding: 0 8px 24px; }
  .container { padding: 0 12px; margin-top: 16px; }

  .hero {
    padding: 28px 16px 24px;
    gap: 16px;
    margin-top: 16px;
    margin-bottom: 32px;
  }
  .hero h1 { font-size: clamp(1.4rem, 6vw, 1.8rem); }
  .hero-sub { font-size: 0.875rem; }
  .hero-ctas { width: 100%; flex-direction: column; }
  .btn { justify-content: center; width: 100%; }
  .hero-caps { gap: 12px; }
  .hero-cap { font-size: 0.75rem; }

  .section { margin-bottom: 32px; }

  .skills-grid { grid-template-columns: 1fr; }
  .skill-box { padding: 16px; }

  .exp-card { padding: 16px; }
  .exp-header { flex-direction: column; }
  .exp-date { align-self: flex-start; }
  .exp-card li {
    font-size: 0.8rem;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .projects-grid { grid-template-columns: 1fr; }
  .project-group { margin-bottom: 24px; }
  .project-thumb { height: 100px; }

  .cert-list li {
    flex-wrap: wrap;
    font-size: 0.8rem;
  }
  .cert-date {
    margin-left: 0;
    width: 100%;
    padding-left: 23px;
  }

  footer { padding: 24px 16px; }
}