/* ═══════════════════════════════════════════════════════════════
   dataLoom Enablement — Shared Design System
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ───────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  /* Brand Colors */
  --navy: #22273E;
  --navy2: #2D3354;
  --cyan: #3ECAEB;
  --off: #F7F8FA;
  --muted: #8899AA;
  --slate: #607D8B;
  --white: #FFF;
  --gold: #FFB800;
  --green: #2ECC71;
  --red: #E74C3C;
  --deep: #0A0C16;

  /* Computed */
  --cyan-glow: rgba(62,202,235,0.15);
  --cyan-border: rgba(62,202,235,0.2);
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.06);
  --glass-hover: rgba(255,255,255,0.08);

  /* Layout */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --ease: cubic-bezier(0.16,1,0.3,1);
  --max-width: 1200px;
  --max-width-narrow: 900px;

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: linear-gradient(135deg, var(--navy), var(--deep));
  color: var(--white);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Override link defaults for nav elements */
nav a, nav a:link, nav a:visited, nav a:hover, nav a:active,
[role="navigation"] a, [role="navigation"] a:link, [role="navigation"] a:visited, [role="navigation"] a:hover, [role="navigation"] a:active,
[role="menu"] a, [role="menu"] a:link, [role="menu"] a:visited, [role="menu"] a:hover, [role="menu"] a:active {
  text-decoration: none !important;
}

/* ── Skip Navigation (a11y) ─────────────────────────────────── */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--cyan);
  color: var(--navy);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-nav:focus {
  top: 8px;
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ── Focus Rings (a11y) ─────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ── Layout ─────────────────────────────────────────────────── */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px;
}
main.narrow { max-width: var(--max-width-narrow); }

/* ── Typography ─────────────────────────────────────────────── */
h1 { font-size: 28px; font-weight: 700; margin-bottom: 4px; letter-spacing: -0.3px; }
h1 em, h2 em, h3 em { font-style: normal; color: var(--cyan); }
.subtitle { color: var(--muted); font-size: 15px; margin-bottom: 32px; }

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  margin-top: 40px;
}

/* ── Grid System ────────────────────────────────────────────── */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media(max-width: 900px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
@media(max-width: 900px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media(max-width: 600px) { .grid-4 { grid-template-columns: 1fr; } }

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-top: 3px solid var(--cyan);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--cyan-glow);
}
.card-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--muted);
  margin-bottom: 8px;
}
.card-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
}
.card-value .unit {
  font-size: 16px;
  font-weight: 400;
  color: var(--muted);
}
.card-sub {
  font-size: 13px;
  color: var(--slate);
  margin-top: 4px;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--cyan);
  color: var(--navy);
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font);
  transition: all 0.3s var(--ease);
  min-height: 44px; /* a11y touch target */
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(62,202,235,0.3);
  text-decoration: none;
}
.btn:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--cyan-border);
  color: var(--cyan);
}
.btn-outline:hover { background: rgba(62,202,235,0.1); }
.btn-secondary {
  background: var(--glass-hover);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.1);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); }
.btn-danger {
  background: transparent;
  border: 1px solid rgba(231,76,60,0.3);
  color: var(--red);
}
.btn-danger:hover { background: rgba(231,76,60,0.1); text-decoration: none; }
.btn-disabled {
  background: rgba(255,255,255,0.06);
  color: var(--slate);
  cursor: not-allowed;
  pointer-events: none;
}
.btn-sm { padding: 6px 12px; font-size: 12px; min-height: 36px; }
.btn-primary { background: var(--cyan); color: var(--navy); }
.btn-primary:hover { filter: brightness(1.1); }

/* ── Level Badges ───────────────────────────────────────────── */
.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.level-starter { background: rgba(136,153,170,0.2); color: var(--muted); }
.level-practitioner { background: rgba(62,202,235,0.15); color: var(--cyan); }
.level-builder { background: rgba(255,184,0,0.15); color: var(--gold); }
.level-champion { background: rgba(46,204,113,0.15); color: var(--green); }

/* ── Status Pills ───────────────────────────────────────────── */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.status-pill.active { background: rgba(46,204,113,0.15); color: var(--green); }
.status-pill.planned { background: rgba(255,184,0,0.15); color: var(--gold); }
.status-pill.draft { background: rgba(136,153,170,0.15); color: var(--slate); }
.status-pill .s-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ── XP Bar ─────────────────────────────────────────────────── */
.xp-bar-wrap { margin-top: 24px; }
.xp-bar-bg {
  background: var(--glass-hover);
  border-radius: var(--radius-sm);
  height: 12px;
  overflow: hidden;
}
.xp-bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--cyan), #7DFFAF);
  transition: width 0.8s var(--ease);
}
.xp-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

/* ── Activity Feed ──────────────────────────────────────────── */
.activity-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.activity-item:last-child { border: none; }
.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.activity-dot.complete, .activity-dot.module { background: var(--green); }
.activity-dot.badge-earned, .activity-dot.badge { background: var(--gold); }
.activity-dot.login, .activity-dot.level-up { background: var(--cyan); }
.activity-text { font-size: 13px; color: var(--muted); flex: 1; }
.activity-text strong { color: var(--white); font-weight: 600; }
.activity-time { margin-left: auto; font-size: 11px; color: var(--slate); white-space: nowrap; }

/* ── Data Tables ────────────────────────────────────────────── */
.data-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.data-table th {
  text-align: left;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  padding: 10px 12px;
  border-bottom: 2px solid var(--glass-hover);
  position: sticky;
  top: 0;
  background: var(--navy2);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.data-table th:hover { color: var(--cyan); }
.data-table th .sort-arrow { font-size: 10px; margin-left: 4px; opacity: 0.4; }
.data-table th.sorted .sort-arrow { opacity: 1; color: var(--cyan); }
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
  color: var(--white);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.data-table tr:hover td { background: rgba(255,255,255,0.02); }
.status-active, .status-published { color: var(--green); }
.status-planned, .status-draft { color: var(--gold); }
.status-archived { color: var(--red); }

/* ── Pagination ─────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding: 16px 0;
}
.pagination button {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  min-height: 40px;
}
.pagination button:hover:not(:disabled) {
  background: rgba(62,202,235,0.1);
  border-color: var(--cyan-border);
  color: var(--cyan);
}
.pagination button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.pagination button.active {
  background: var(--cyan);
  color: var(--navy);
  border-color: var(--cyan);
  font-weight: 600;
}
.pagination .page-info {
  font-size: 13px;
  color: var(--muted);
}

/* ── Forms ──────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--white);
  font-size: 14px;
  font-family: var(--font);
  min-height: 44px; /* a11y */
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(62,202,235,0.15);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media(max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  justify-content: center;
  align-items: flex-start;
  padding: 40px 16px;
  overflow-y: auto;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--navy2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn 0.3s var(--ease);
}
@keyframes modalSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal h2 { font-size: 20px; font-weight: 700; margin-bottom: 20px; }

/* ── Toast Queue ────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--green);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
  animation: toastIn 0.3s var(--ease), toastOut 0.3s var(--ease) forwards;
  animation-delay: 0s, var(--toast-duration, 3s);
  pointer-events: auto;
  max-width: 400px;
}
.toast.error { background: var(--red); }
.toast.info { background: var(--cyan); color: var(--navy); }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; transform: translateY(-10px); } }

/* ── Skeleton Loaders ───────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-card {
  height: 160px;
  border-radius: var(--radius);
}
.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
  border-radius: 4px;
}
.skeleton-text.short { width: 40%; }
.skeleton-text.medium { width: 65%; }

/* ── Empty State ────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}
.empty-state-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { color: var(--white); margin-bottom: 8px; font-size: 18px; }
.empty-state p { font-size: 13px; line-height: 1.6; }

/* ── Streak Badge ───────────────────────────────────────────── */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255,69,0,0.1);
  color: #FF4500;
  border: 1px solid rgba(255,69,0,0.2);
  font-size: 12px;
  font-weight: 600;
}
.streak-badge.none {
  background: rgba(255,255,255,0.02);
  color: var(--muted);
  border: 1px solid var(--glass-hover);
}

/* ── Footer ─────────────────────────────────────────────────── */
.dl-footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--slate);
  font-size: 12px;
  margin-top: 60px;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.dl-footer .logo-text span { font-weight: 100; color: #A0B0C0; }
.dl-footer .logo-text b { font-weight: 700; color: var(--muted); }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────────────────────────── */
@media(max-width: 600px) {
  main { padding: 20px 16px; }
  h1 { font-size: 24px; }
  .card-value { font-size: 28px; }
}