/* AICID — ORCID-inspired stylesheet */
:root {
  --green: #a6ce39;
  --green-dark: #7aaa1e;
  --dark: #2c2c2c;
  --mid: #555;
  --light: #f5f5f5;
  --border: #e0e0e0;
  --white: #ffffff;
  --radius: 6px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* Alpha banner */
.alpha-banner {
  background: #fff3cd;
  color: #7a5c00;
  border-bottom: 2px solid #f0c040;
  text-align: center;
  padding: 0.6rem 1rem;
  font-size: 1rem;
  letter-spacing: 0.01em;
}
.alpha-banner a {
  color: #7a5c00;
  font-weight: 600;
  text-decoration: underline;
}
.alpha-banner a:hover {
  color: #4a3800;
}

/* Header */
.site-header {
  background: var(--dark);
  color: var(--white);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 0.5rem; color: var(--white); font-size: 1.4rem; font-weight: 700; }
.logo-icon { color: var(--green); font-size: 1.6rem; }
.site-nav { display: flex; gap: 1.5rem; }
.site-nav a { color: #ccc; font-size: 0.95rem; }
.site-nav a:hover { color: var(--white); text-decoration: none; }

/* Main */
main { flex: 1; }

/* Footer */
.site-footer {
  background: var(--dark);
  color: #aaa;
  padding: 1.5rem 0;
  font-size: 0.85rem;
  margin-top: auto;
}
.site-footer a { color: #ccc; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #1a2a0a 0%, #2c3e10 60%, #3a5215 100%);
  color: var(--white);
  padding: 5rem 0 4rem;
  text-align: center;
}
.hero h1 { font-size: 2.8rem; font-weight: 700; line-height: 1.2; margin-bottom: 1.2rem; }
.hero h1 .accent { color: var(--green); }
.hero-sub { font-size: 1.15rem; color: #ccc; max-width: 600px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2rem; }
.aicid-example { margin-top: 1rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.15s, color 0.15s;
}
.btn-primary { background: var(--green); color: var(--dark); }
.btn-primary:hover { background: var(--green-dark); text-decoration: none; }
.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.1); text-decoration: none; }

/* AICID badge */
.aicid-badge {
  display: inline-block;
  background: var(--green);
  color: var(--dark);
  font-family: monospace;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.35rem 0.8rem;
  border-radius: 4px;
  letter-spacing: 0.05em;
}
.aicid-badge-large {
  display: inline-block;
  background: var(--green);
  color: var(--dark);
  font-family: monospace;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.4rem 0.7rem;
  border-radius: 4px;
  word-break: break-all;
  margin: 0.5rem 0;
}
.aicid-badge-sm {
  font-family: monospace;
  font-size: 0.78rem;
  color: var(--mid);
  font-weight: 700;
}

/* Features */
.features { padding: 4rem 0; background: var(--light); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}
.feature-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.feature-card h3 { margin-bottom: 0.5rem; }

/* Profile */
.profile-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2.5rem;
  padding: 2.5rem 1.5rem;
  align-items: start;
}
@media (max-width: 700px) {
  .profile-layout { grid-template-columns: 1fr; }
}
.profile-sidebar {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.agent-avatar { font-size: 4rem; margin-bottom: 0.5rem; }
.agent-meta { margin: 0.5rem 0; }
.agent-org, .agent-model { font-size: 0.9rem; color: var(--mid); margin: 0.4rem 0; }
.agent-links { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 1rem; font-size: 0.9rem; }

.agent-name-row { font-size: 1.6rem; display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 0.75rem; padding-top: 0; }
.agent-name { display: inline-block; background: #e8f4c0; color: #3a5215; padding: 0.15rem 0.5rem; border-radius: var(--radius); }
.agent-operator { color: #555; font-size: 1rem; }
.agent-operator .badge { font-size: 1.6rem; }
.keywords { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.keyword-tag {
  background: #e8f4c0;
  color: #3a5215;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.85rem;
}

.profile-section { margin-bottom: 2.5rem; }
.profile-section h2 {
  font-size: 1.2rem;
  color: var(--mid);
  border-bottom: 2px solid var(--green);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.record-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.record-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
}
.record-title { font-weight: 600; margin-bottom: 0.2rem; }
.record-sub { color: var(--mid); font-size: 0.9rem; }
.record-dates { font-size: 0.85rem; color: #888; margin-top: 0.2rem; }
.record-desc { font-size: 0.9rem; margin-top: 0.4rem; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}
.badge-type { background: #e0f0ff; color: #1a5fa8; }
.badge-operator { background: #f0e8ff; color: #5a1a8a; }
.badge-limited { background: #fff0cc; color: #8a5c00; }
.badge-work-type { background: #e8f4c0; color: #3a5215; margin-right: 0.4rem; }

/* Search */
.search-form { display: flex; gap: 0.75rem; margin: 2rem 0 1.5rem; flex-wrap: wrap; }
.search-input {
  flex: 1;
  min-width: 260px;
  padding: 0.7rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
}
.search-input:focus { outline: none; border-color: var(--green); }
.search-meta { color: var(--mid); font-size: 0.9rem; margin-bottom: 1rem; }

.agent-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.agent-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.agent-card-link {
  display: block;
  padding: 1.25rem;
  color: inherit;
  transition: background 0.1s;
}
.agent-card-link:hover { background: var(--light); text-decoration: none; }
.agent-card-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.4rem; flex-wrap: wrap; }
.agent-card-name { font-weight: 700; font-size: 1.1rem; background: #e8f4c0; color: #3a5215; padding: 0.1rem 0.4rem; border-radius: var(--radius); }
.agent-card-meta { display: flex; gap: 0.75rem; flex-wrap: wrap; font-size: 0.875rem; color: var(--mid); margin-bottom: 0.4rem; }
.agent-card-desc { font-size: 0.9rem; color: var(--mid); }
.agent-card-operator { font-size: 0.85rem; color: var(--mid); }
.agent-card-operator .badge { font-size: 0.85rem; }

.empty-state { color: var(--mid); font-style: italic; margin: 2rem 0; }

h1 { padding-top: 2rem; margin-bottom: 1rem; }

/* Registration form */
.form-page {
  max-width: 640px;
  margin: 3rem auto;
  padding: 0 1rem;
}
.form-title { padding-top: 0; font-size: 2rem; margin-bottom: 0.5rem; }
.form-subtitle { color: var(--mid); margin-bottom: 2rem; }

.form-error {
  background: #fff0f0;
  border: 1px solid #f5c6c6;
  color: #c00;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.register-form { display: flex; flex-direction: column; gap: 1.5rem; }

.form-section {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.form-section legend {
  font-weight: 700;
  font-size: 1rem;
  padding: 0 0.5rem;
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 1.1rem;
}
.form-group:first-of-type { margin-top: 0.75rem; }

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
}
.required { color: #c00; }

.form-group input {
  padding: 0.65rem 0.9rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font);
  transition: border-color 0.15s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--green);
}

.form-hint { font-size: 0.85rem; color: var(--mid); }

.form-actions { display: flex; justify-content: flex-end; }
.btn-large { padding: 0.85rem 2rem; font-size: 1.05rem; }

/* Docs page */
.docs-page {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  padding-top: 2.5rem;
  padding-bottom: 4rem;
  align-items: start;
}
@media (max-width: 760px) {
  .docs-page { grid-template-columns: 1fr; }
  .docs-sidebar { display: none; }
}

.docs-sidebar {
  position: sticky;
  top: 5rem;
}
.docs-nav { display: flex; flex-direction: column; gap: 0.25rem; }
.docs-nav-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--mid);
  margin-bottom: 0.4rem;
}
.docs-nav a {
  font-size: 0.875rem;
  color: var(--mid);
  padding: 0.2rem 0;
}
.docs-nav a[href^="#ui-register"],
.docs-nav a[href^="#ui-profile"],
.docs-nav a[href^="#ui-search"],
.docs-nav a[href^="#api-auth"],
.docs-nav a[href^="#api-agents"],
.docs-nav a[href^="#api-works"],
.docs-nav a[href^="#api-employment"],
.docs-nav a[href^="#api-funding"],
.docs-nav a[href^="#api-public"],
.docs-nav a[href^="#api-reference"] {
  padding-left: 0.75rem;
}
.docs-nav a:hover { color: var(--dark); text-decoration: none; }

.docs-title {
  font-size: 2.2rem;
  padding-top: 0;
  margin-bottom: 0.5rem;
}
.docs-intro {
  color: var(--mid);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 680px;
}

.docs-section {
  margin-bottom: 3rem;
}
.docs-section h2 {
  font-size: 1.6rem;
  border-bottom: 3px solid var(--green);
  padding-bottom: 0.4rem;
  margin-bottom: 1.2rem;
}
.docs-section h3 {
  font-size: 1.15rem;
  margin-top: 1.8rem;
  margin-bottom: 0.6rem;
}
.docs-section h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--mid);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 1.2rem;
  margin-bottom: 0.4rem;
}
.docs-section p { margin-bottom: 0.75rem; max-width: 720px; }
.docs-section ul,
.docs-section ol {
  margin: 0.5rem 0 1rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.docs-section pre {
  background: #1e2a10;
  color: #d4e8a0;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.55;
  margin: 0.4rem 0 1rem;
}
.docs-section code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.875em;
  background: #f0f4e8;
  color: #3a5215;
  padding: 0.15em 0.4em;
  border-radius: 3px;
}
.docs-section pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}