/* ═══════════════════════════════════════════════════════════
   SkillBridge — Clean, Simple Developer UI
   Calm, functional, and authentic engineering aesthetics
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --bg: #0E1117;
  --surface: #161B22;
  --surface-hover: #1C2128;
  --border: #30363D;
  --border-muted: #21262D;

  --text-main: #F0F6FC;
  --text-sub: #8B949E;
  --text-muted: #6E7681;

  --brand-orange: #FF9900;
  --green: #2EA043;
  --green-bg: rgba(46, 160, 67, 0.15);
  --green-border: rgba(46, 160, 67, 0.35);

  --amber: #D29922;
  --amber-bg: rgba(210, 153, 34, 0.15);
  --amber-border: rgba(210, 153, 34, 0.35);

  --blue: #58A6FF;
  --blue-bg: rgba(88, 166, 255, 0.12);
  --blue-border: rgba(88, 166, 255, 0.3);

  --red: #F85149;
  --red-bg: rgba(248, 81, 73, 0.15);

  --radius: 8px;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* ─── HEADER ────────────────────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-badge {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.5px;
  color: #0E1117;
  background: var(--brand-orange);
  padding: 4px 10px;
  border-radius: 4px;
}

.brand-sub {
  font-size: 13px;
  color: var(--text-sub);
}

.topbar-status {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-sub);
}

.status-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

/* ─── HERO ──────────────────────────────────────────── */
.hero {
  border-bottom: 1px solid var(--border-muted);
  background: #11151C;
  padding: 48px 24px 40px;
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.tagline-kicker {
  font-size: 11px;
  color: var(--brand-orange);
  margin-bottom: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  font-weight: 600;
}

.hero-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 780px;
  line-height: 1.65;
  margin-bottom: 28px;
}

.pipeline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 18px;
  border-top: 1px solid var(--border-muted);
}

.pipe-step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-sub);
  transition: all 0.2s ease;
}

.pipe-step.active {
  color: var(--text-main);
  border-color: var(--blue-border);
  background: var(--surface-hover);
  box-shadow: 0 0 0 1px var(--blue-border);
}

.pipe-step.done {
  color: #3FB950;
  border-color: var(--green-border);
  background: var(--green-bg);
}

.pipe-sep {
  color: var(--text-muted);
  font-size: 13px;
}

/* ─── CONTAINER ─────────────────────────────────────── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 36px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ─── VIEW TABS ─────────────────────────────────────── */
.view-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

.tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-sub);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text-main);
  background: var(--surface);
}

.tab-btn.active {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-main);
}

/* ─── CARDS ─────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.card-header {
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-muted);
  padding-bottom: 16px;
}

.card-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.3px;
  margin-bottom: 6px;
}

.card-caption {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
}

.subsection-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
  margin-top: 12px;
}

.section-divider {
  height: 1px;
  background: var(--border-muted);
  margin: 32px 0;
}

/* ─── FORMS ─────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 24px;
  margin-bottom: 24px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-full {
  grid-column: 1 / -1;
}

.field-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  letter-spacing: 0.3px;
}

input, textarea {
  background: #0E1117;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  width: 100%;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px var(--blue-border);
}

input::placeholder, textarea::placeholder {
  color: #484F58;
}

.btn-file-upload {
  font-size: 11px;
  padding: 4px 10px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  color: var(--blue);
}

.btn-file-upload:hover {
  background: #21262D;
}

.file-name {
  font-size: 11px;
  color: #3FB950;
  margin-left: 8px;
}

/* ─── BUTTONS ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--brand-orange);
  color: #0E1117;
}

.btn-primary:hover {
  background: #E68A00;
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ─── SKILL GRID ─────────────────────────────────────── */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.skill-card {
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: border-color 0.2s ease;
}

.skill-card:hover {
  border-color: var(--border);
}

.sk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sk-name {
  font-size: 14px;
  font-weight: 600;
}

.sk-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sk-bar-bg {
  flex: 1;
  height: 7px;
  background: #21262D;
  border-radius: 4px;
  overflow: hidden;
}

.sk-bar-fill {
  height: 100%;
  background: var(--blue);
  border-radius: 4px;
  transition: width 0.4s ease;
}

.sk-bar-fill.demonstrated {
  background: var(--green);
}

.sk-bar-fill.partial {
  background: var(--amber);
}

.sk-levels {
  font-size: 12px;
  color: var(--text-muted);
  min-width: 28px;
  text-align: right;
}

/* ─── BADGES ─────────────────────────────────────────── */
.badge {
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-dem {
  background: var(--green-bg);
  color: #3FB950;
  border: 1px solid var(--green-border);
}

.badge-clm {
  background: var(--blue-bg);
  color: var(--blue);
  border: 1px solid var(--blue-border);
}

.badge-gap {
  background: var(--amber-bg);
  color: #F2CC60;
  border: 1px solid var(--amber-border);
}

/* ─── GAPS TABLE ─────────────────────────────────────── */
.gaps-table {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gap-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 14px;
}

.gap-title {
  font-weight: 500;
}

.gap-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-sub);
}

/* ─── PROJECT CARD ───────────────────────────────────── */
.project-header-box {
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
}

.proj-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.proj-desc {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 12px;
  line-height: 1.6;
}

.proj-meta-row {
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--text-muted);
}

.tasks-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-item {
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 14px;
  transition: border-color 0.2s ease;
}

.task-item:hover {
  border-color: var(--border);
}

.task-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.task-criteria {
  font-size: 12px;
  color: var(--blue);
  margin-top: 4px;
}

/* ─── REVIEW SUMMARY ─────────────────────────────────── */
.review-box {
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.score-badge {
  font-size: 32px;
  font-weight: 700;
  color: #3FB950;
  font-family: 'JetBrains Mono', monospace;
}

.review-feedback {
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.5;
}

/* ─── EVIDENCE GRID ──────────────────────────────────── */
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.evidence-card {
  background: #0E1117;
  border: 1px solid var(--green-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: 0 2px 8px rgba(46, 160, 67, 0.1);
}

.ev-header {
  font-size: 11px;
  color: #3FB950;
  font-weight: 600;
  margin-bottom: 6px;
}

.ev-skill {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.ev-meta {
  font-size: 11px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

/* ─── NEXT ACTION CARD ───────────────────────────────── */
.next-action-card {
  background: #0E1117;
  border: 1px solid var(--border-muted);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 13px;
}

/* ─── LOADING MODAL ──────────────────────────────────── */
.loading-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 90%;
  max-width: 460px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.loader-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand-orange), transparent);
  animation: sweep 1.5s infinite linear;
}

.loading-header {
  margin-bottom: 16px;
}

.loading-label {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.loading-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 4px;
}

.loading-steps {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-sub);
}

.loading-step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

/* ─── FOOTER ─────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border-muted);
  padding: 24px 20px;
  color: var(--text-muted);
  font-size: 12px;
}

.footer-inner {
  max-width: 940px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

.link {
  color: var(--blue);
  text-decoration: none;
}

.link:hover {
  text-decoration: underline;
}

.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-top: 12px;
}

.alert-error {
  background: var(--red-bg);
  color: #FFA198;
  border: 1px solid rgba(248, 81, 73, 0.4);
}

.hidden {
  display: none !important;
}

@keyframes sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}