/* Dark theme (default) */
:root {
  --bg-primary: #0d0d0d;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --brand-primary: #e8650a;
  --brand-primary-10: rgba(232, 101, 10, 0.1);
  --brand-primary-20: rgba(232, 101, 10, 0.2);
  --cert-color: #d4a017;
  --cert-bg: rgba(212, 160, 23, 0.1);
  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --text-white: #ffffff;
  --border-subtle: #3a3a3a;
  --border-muted: rgba(80, 80, 80, 0.5);
  --border-accent: #e8650a;
  --nav-bg: rgba(13, 13, 13, 0.85);
  --available-bg: rgba(34, 197, 94, 0.1);
  --available-color: #4ade80;
  --language-bg: rgba(8, 145, 178, 0.1);
  --language-color: #0891b2;
  --radius: 8px;
  --radius-sm: 6px;
}

/* Light theme
   NOTE: The [data-theme="light"] block and the @media (prefers-color-scheme: light)
   block below MUST stay in sync. If you update one, update the other. */
[data-theme="light"] {
  --bg-primary: #f8f8f8;
  --bg-secondary: #ffffff;
  --bg-tertiary: #eee;
  --brand-primary: #d45800;
  --brand-primary-10: rgba(212, 88, 0, 0.08);
  --brand-primary-20: rgba(212, 88, 0, 0.15);
  --cert-color: #b8860b;
  --cert-bg: rgba(184, 134, 11, 0.08);
  --text-primary: #1a1a1a;
  --text-secondary: #555;
  --text-white: #ffffff;
  --border-subtle: #ddd;
  --border-muted: rgba(180, 180, 180, 0.5);
  --border-accent: #d45800;
  --nav-bg: rgba(248, 248, 248, 0.9);
  --available-bg: rgba(22, 163, 74, 0.1);
  --available-color: #16a34a;
  --language-bg: rgba(14, 116, 144, 0.1);
  --language-color: #0e7490;
}

/* Auto light for users with OS preference, unless manually overridden
   NOTE: Must stay in sync with [data-theme="light"] above. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-primary: #f8f8f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #eee;
    --brand-primary: #d45800;
    --brand-primary-10: rgba(212, 88, 0, 0.08);
    --brand-primary-20: rgba(212, 88, 0, 0.15);
    --cert-color: #b8860b;
    --cert-bg: rgba(184, 134, 11, 0.08);
    --text-primary: #1a1a1a;
    --text-secondary: #555;
    --text-white: #ffffff;
    --border-subtle: #ddd;
    --border-muted: rgba(180, 180, 180, 0.5);
    --border-accent: #d45800;
    --nav-bg: rgba(248, 248, 248, 0.9);
    --available-bg: rgba(22, 163, 74, 0.1);
    --available-color: #16a34a;
    --language-bg: rgba(14, 116, 144, 0.1);
    --language-color: #0e7490;
  }
}

/* Heading typography */
h1, h2, h3, h4, h5, h6,
.nav-brand,
.hero h1,
.hero-stat-num {
  font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
}

html { overflow-x: hidden; }

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Focus-visible styles */
*:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

button:focus-visible,
.chip:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--brand-primary-10);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.35rem 0.5rem;
  font-size: 1rem;
  line-height: 1;
  transition: color 0.15s, border-color 0.15s;
}
.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--brand-primary);
}

a {
  color: var(--brand-primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav-brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}
.nav-brand:hover {
  text-decoration: none;
  color: var(--brand-primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
}
.nav-link:hover {
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s;
}
.btn:hover {
  text-decoration: none;
  opacity: 0.85;
}
.btn-primary {
  background: var(--brand-primary);
  color: var(--text-white);
}
.btn-outline {
  background: transparent;
  color: var(--brand-primary);
  border: 2px solid var(--brand-primary);
}

/* Hero */
@keyframes heroGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.hero {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 2.5rem 1.5rem 1.5rem;
  background: linear-gradient(135deg, var(--bg-secondary), rgba(232, 101, 10, 0.08), rgba(120, 40, 200, 0.06), var(--bg-secondary));
  background-size: 400% 400%;
  animation: heroGradient 12s ease infinite;
  border-bottom: 1px solid var(--border-subtle);
}
.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  background: radial-gradient(ellipse at center, var(--bg-secondary) 0%, transparent 70%);
  padding: 1.25rem 2rem;
  border-radius: 1rem;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.hero-stat {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.hero-stat-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-primary);
  font-variant-numeric: tabular-nums;
}
.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 20px var(--bg-secondary), 0 0 40px var(--bg-secondary);
}
.hero-tagline {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}
.hero-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  opacity: 0.7;
  margin: 0.25rem auto 0;
}
.success-banner {
  background: var(--available-bg);
  color: var(--available-color);
  border: 1px solid var(--available-color);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  margin: 5rem auto 1rem;
  max-width: 600px;
  text-align: center;
  font-weight: 500;
}

/* Insights */
.insights {
  max-width: 1200px;
  margin: 1rem auto 0;
  padding: 2.5rem 1.5rem 2rem;
  border-top: 1px solid var(--border-subtle);
}
.insights h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-align: center;
}
.insights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.insight-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.insight-card h3 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}
.insight-card canvas {
  max-height: 200px;
  width: 100%;
}

/* Filters */
.filters {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}
.search-box {
  margin-bottom: 1.25rem;
}
.search-box input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
}
.search-box input::placeholder {
  color: var(--text-secondary);
}
.search-box input:focus {
  outline: none;
  border-color: var(--brand-primary);
}
/* Filter groups (collapsible) */
.filter-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.filter-group {
  flex: 0 0 auto;
}
.filter-group.open {
  flex: 1 1 100%;
}
.filter-group-header {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filter-group-header:hover {
  border-color: var(--brand-primary);
  color: var(--text-primary);
}
.filter-group.open .filter-group-header {
  background: var(--brand-primary-10);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}
.filter-group-header .chevron {
  transition: transform 0.2s;
  flex-shrink: 0;
}
.filter-group.open .filter-group-header .chevron {
  transform: rotate(90deg);
}
.count-badge {
  background: var(--brand-primary);
  color: var(--text-white);
  font-size: 0.6rem;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  line-height: 16px;
  text-align: center;
  border-radius: 100px;
  padding: 0 4px;
  letter-spacing: 0;
  text-transform: none;
}
.filter-chips {
  display: none;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 0;
}
.filter-group.open .filter-chips {
  display: flex;
}

/* Active filters summary */
.active-filters-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.5rem 0.75rem;
  background: var(--brand-primary-10);
  border: 1px solid var(--brand-primary-20);
  border-radius: var(--radius);
}
.active-filters-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--brand-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-right: 0.25rem;
}
.active-filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  flex: 1;
}
.active-filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border-radius: 100px;
  background: var(--brand-primary-20);
  color: var(--brand-primary);
  font-size: 0.7rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.active-filter-pill:hover {
  background: var(--brand-primary);
  color: var(--text-white);
}
.active-filter-pill .pill-x {
  font-size: 0.6rem;
  opacity: 0.7;
}
.chip {
  padding: 0.35rem 0.75rem;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover {
  border-color: var(--brand-primary);
  color: var(--text-primary);
}
.chip.active {
  background: var(--brand-primary-20);
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

/* Chip pop animation */
@keyframes chipPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.12); }
  100% { transform: scale(1); }
}
.chip.pop {
  animation: chipPop 0.2s ease;
}
.btn-clear {
  padding: 0.25rem 0.6rem;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.7rem;
  cursor: pointer;
  margin-left: auto;
  white-space: nowrap;
}
.btn-clear:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}

/* Directory */
.directory {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}
.results-count {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  position: relative;
}
.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-secondary);
}

/* Card */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s, opacity 0.25s;
}
.card:hover {
  border-color: var(--brand-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--brand-primary-20);
}

/* Staggered entrance animation */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.card {
  animation: fadeSlideUp 0.5s ease-out calc(var(--i, 0) * 0.07s) both;
}

/* Card filter transitions */
.card.fading {
  opacity: 0;
  transform: scale(0.95);
}
.card.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  margin: 0;
  padding: 0;
  border: none;
}
.card-header {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}
.card-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--bg-tertiary);
}
.card-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}
.card-name:hover {
  color: var(--brand-primary);
}
.card-title {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}
.card-company {
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.card-location {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Tags */
.tags, .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 500;
  white-space: nowrap;
  font-family: 'IBM Plex Mono', monospace;
}
.tag-accent {
  background: var(--brand-primary-10);
  color: var(--brand-primary);
}
.tag-cert {
  background: var(--cert-bg);
  color: var(--cert-color);
  border: 1px solid var(--cert-color);
}
.tag-cert::before {
  content: "✦ ";
  font-size: 0.55rem;
  vertical-align: 1px;
}
.tag-outline {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}
.tag-language {
  background: var(--language-bg);
  color: var(--language-color);
}
.tag-available {
  background: var(--available-bg);
  color: var(--available-color);
}

/* Available badges on card */
.card-available {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

/* Card social links */
.card-links {
  display: flex;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
}
.card-links a {
  color: var(--text-secondary);
  transition: color 0.15s;
}
.card-links a:hover {
  color: var(--brand-primary);
}

/* Profile Page */
.profile {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}
.profile-back {
  margin-bottom: 2rem;
}
.profile-back a {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.profile-back a:hover {
  color: var(--brand-primary);
}
.profile-header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}
.profile-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--bg-tertiary);
  box-shadow: 0 0 0 3px var(--bg-primary), 0 0 0 5px var(--brand-primary);
}
.profile-name {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.profile-title {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}
.profile-company {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.profile-location {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}
.profile-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.profile-socials a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--brand-primary);
}
.profile-socials a svg {
  flex-shrink: 0;
  opacity: 0.85;
}
.profile-socials a:hover svg {
  opacity: 1;
}

/* Profile availability banner */
.profile-availability-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--available-bg);
  border: 1px solid var(--available-color);
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  align-items: center;
}

.profile-availability-banner .label {
  font-weight: 600;
  color: var(--available-color);
  margin-right: 0.5rem;
}

.profile-share-btn {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.15s;
}

.profile-share-btn:hover {
  color: var(--text-primary);
  border-color: var(--brand-primary);
}

.profile-share-btn svg {
  flex-shrink: 0;
}

/* Profile sections */
.profile-sections {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.profile-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--brand-primary);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: transform 0.2s, box-shadow 0.2s;
}
.profile-section:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.profile-section h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

/* Profile lower (projects + about side by side) */
.profile-lower {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.profile-lower .profile-body {
  margin-bottom: 0;
}
.profile-lower .profile-projects {
  min-width: 0;
}

/* Projects list */
.project-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.project-card {
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: border-color 0.15s, background 0.15s;
}
.project-card:hover {
  border-left-color: var(--brand-primary);
}
.project-name {
  font-weight: 600;
  font-size: 0.85rem;
}
.project-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Profile body (markdown content) */
.profile-body {
  margin-bottom: 2rem;
}
.profile-body h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.5rem 0 0.75rem;
  letter-spacing: -0.01em;
}
.profile-body h2:first-child {
  margin-top: 0;
}
.profile-body p {
  margin-bottom: 0.75rem;
}
.profile-body ul {
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}
.profile-body li {
  margin-bottom: 0.35rem;
}
.profile-body a {
  color: var(--brand-primary);
}

/* Profile animations */
.profile-header {
  animation: fadeSlideUp 0.4s ease-out both;
}
.profile-availability-banner {
  animation: fadeSlideUp 0.4s ease-out 0.1s both;
}
.profile-sections .profile-section:nth-child(1) {
  animation: fadeSlideUp 0.4s ease-out 0.15s both;
}
.profile-sections .profile-section:nth-child(2) {
  animation: fadeSlideUp 0.4s ease-out 0.2s both;
}
.profile-sections .profile-section:nth-child(3) {
  animation: fadeSlideUp 0.4s ease-out 0.25s both;
}
.profile-sections .profile-section:nth-child(4) {
  animation: fadeSlideUp 0.4s ease-out 0.3s both;
}
.profile-lower {
  animation: fadeSlideUp 0.4s ease-out 0.35s both;
}
.profile-cta {
  animation: fadeSlideUp 0.4s ease-out 0.4s both;
}

/* Profile CTA */
.profile-cta {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--brand-primary);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}
.profile-cta p {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.profile-cta-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 2rem 1.5rem;
  text-align: center;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.footer p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

/* Submit Form Page */
.submit-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}
.submit-header {
  text-align: center;
  margin-bottom: 2rem;
}
.submit-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.submit-tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}

/* Step indicator */
.step-indicator {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
}
.step-indicator .step {
  flex: 1;
  background: none;
  border: none;
  padding: 0.5rem 0.25rem;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.step-indicator .step.active {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}
.step-indicator .step.completed {
  color: var(--text-primary);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--bg-tertiary);
  font-size: 0.7rem;
  margin-right: 0.35rem;
}
.step.active .step-num {
  background: var(--brand-primary);
  color: var(--text-white);
}
.step.completed .step-num {
  background: var(--brand-primary-20);
  color: var(--brand-primary);
}

/* Form */
.submit-form {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-step-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}
.form-required-note {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-secondary);
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}
.form-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}
.form-hint-inline {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-secondary);
}
.form-error {
  font-size: 0.78rem;
  color: #ef4444;
  margin-top: 0.25rem;
  min-height: 0;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Inputs */
.submit-form input[type="text"],
.submit-form input[type="url"],
.submit-form textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}
.submit-form input:focus,
.submit-form textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
}
.submit-form input::placeholder,
.submit-form textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}
.submit-form textarea {
  resize: vertical;
  min-height: 80px;
}

/* GitHub avatar input row */
.github-input-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.github-input-row input {
  flex: 1;
}
.avatar-preview {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-tertiary);
}

/* Chip selector (reuses .chip styles) */
.chip-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.custom-chip-add {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.custom-chip-add input {
  flex: 1;
  max-width: 220px;
}
.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
}

/* Tag input (certifications) */
.tag-input-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 0.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}
.tag-input-wrap:focus-within {
  border-color: var(--brand-primary);
}
.tag-input-tags {
  display: contents;
}
.tag-input-wrap input {
  border: none !important;
  background: transparent !important;
  padding: 0.15rem !important;
  min-width: 100px;
  flex: 1;
}
.tag-removable {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.tag-removable button {
  background: none;
  border: none;
  color: inherit;
  font-size: 1rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

/* Project entries */
.project-entry {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.project-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-primary);
}
.btn-remove {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0 0.25rem;
  line-height: 1;
}
.btn-remove:hover {
  color: #ef4444;
}

/* Form navigation */
.form-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

/* Preview container */
.profile-preview-container {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 2rem;
  margin-bottom: 1.5rem;
}
.submit-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.btn-lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}
.submit-fallback {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1rem;
  text-align: center;
}
.submit-fallback p {
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

/* Responsive */
@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .insights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .insights-grid {
    grid-template-columns: 1fr;
  }
  .insights {
    padding: 1.5rem 1rem 0.5rem;
  }
  .insight-card {
    padding: 1rem;
  }
  .hero {
    padding: 2.5rem 1rem 1.5rem;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
  .hero-tagline {
    font-size: 0.9rem;
  }
  .hero-stats {
    gap: 1rem;
    flex-wrap: wrap;
  }
  .hero-stat-num {
    font-size: 1.2rem;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 1rem;
  }
  .chip {
    padding: 0.5rem 0.85rem;
    font-size: 0.8rem;
  }
  .filters {
    padding: 1rem;
  }
  .profile-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .profile-share-btn {
    position: static;
    order: 10;
    align-self: center;
    margin-top: 0.5rem;
  }
  .profile-avatar {
    width: 80px;
    height: 80px;
  }
  .profile-name {
    font-size: 1.35rem;
  }
  .profile-socials {
    justify-content: center;
  }
  .profile-sections {
    grid-template-columns: 1fr;
  }
  .profile-lower {
    grid-template-columns: 1fr;
  }
  .profile-cta {
    padding: 1.25rem;
  }
  .nav-inner {
    padding: 0.75rem 1rem;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .nav-link {
    display: none;
  }
  .nav-links {
    gap: 0.75rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .submit-form {
    padding: 1.25rem;
  }
  .step-indicator .step {
    font-size: 0.7rem;
  }
}
@media (max-width: 400px) {
  .step-indicator {
    gap: 0.25rem;
  }
  .step-indicator .step {
    font-size: 0;
    padding: 0.5rem 0.25rem;
  }
  .step-indicator .step .step-num {
    font-size: 0.7rem;
    margin-right: 0;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero { background-size: 100% 100%; }
  .card { opacity: 1; transform: none; }
}

/* Print stylesheet */
@media print {
  .nav, .footer, .hero-particles, .filters, .card-links, .profile-socials,
  .profile-cta, #tsparticles, .theme-toggle, .btn-primary { display: none !important; }
  body { background: white; color: black; }
  .profile { max-width: 100%; }
  .card-grid { display: block; }
  .card { break-inside: avoid; border: 1px solid #ddd; margin-bottom: 1rem; }
  a { color: inherit; text-decoration: underline; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}