/* ═══════════════════════════════════════════════════════
   ThreadFuel — Style Guide
   Sleek. Modern. Sass.
   ═══════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────── */
:root {
  --tf-bg:        #0e0e10;
  --tf-surface:   #18181b;
  --tf-surface-2: #1f1f23;
  --tf-surface-3: #26262c;
  --tf-border:    #2f2f35;
  --tf-text:      #efeff1;
  --tf-text-dim:  #adadb8;
  --tf-text-mute: #707078;
  --tf-accent:    #1d9bf0;
  --tf-accent-hover: #1486d4;
  --tf-green:     #00c853;
  --tf-yellow:    #ffd600;
  --tf-red:       #ff4d4f;
  --tf-purple:    #bf5af2;
  --tf-radius:    10px;
  --tf-radius-sm: 6px;
  --tf-radius-lg: 16px;
  --tf-shadow:    0 2px 12px rgba(0,0,0,.45);
  --tf-shadow-lg: 0 8px 32px rgba(0,0,0,.55);
  --tf-transition: .18s cubic-bezier(.4,0,.2,1);
  --tf-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --tf-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ── Reset & Base ───────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 15px;
  position: relative;
  min-height: 100%;
}
@media (min-width: 768px) { html { font-size: 16px; } }

body {
  font-family: var(--tf-font);
  background: var(--tf-bg);
  color: var(--tf-text);
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--tf-accent);
  color: #fff;
}

a {
  color: var(--tf-accent);
  text-decoration: none;
  transition: color var(--tf-transition);
}
a:hover { color: var(--tf-accent-hover); }

img { max-width: 100%; }

/* ── Typography ─────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  color: var(--tf-text);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-top: 0;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.2rem; }

.display-4 {
  font-size: 3.2rem !important;
  font-weight: 800 !important;
  letter-spacing: -.04em;
  background: linear-gradient(135deg, var(--tf-accent), var(--tf-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  font-size: 1.15rem;
  color: var(--tf-text-dim);
  font-weight: 400;
}

.text-muted, small.text-muted { color: var(--tf-text-mute) !important; }

/* ── Navbar ─────────────────────────────────────────── */
.navbar {
  background: var(--tf-surface) !important;
  border-bottom: 1px solid var(--tf-border) !important;
  backdrop-filter: blur(12px);
  padding: .65rem 0;
  margin-bottom: 0 !important;
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -.03em;
  background: linear-gradient(135deg, var(--tf-accent), var(--tf-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-dark .navbar-nav .nav-link,
.navbar .nav-link {
  color: var(--tf-text-dim) !important;
  font-weight: 500;
  font-size: .9rem;
  padding: .4rem .85rem !important;
  border-radius: var(--tf-radius-sm);
  transition: all var(--tf-transition);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar .nav-link:hover {
  color: var(--tf-text) !important;
  background: var(--tf-surface-2);
}

.navbar-toggler {
  border: 1px solid var(--tf-border);
}

/* ── Container Override ─────────────────────────────── */
.container { max-width: 1140px; }
.container main { padding-top: 2rem; padding-bottom: 3rem; }
.tf-dashboard-main main { padding-top: 0; max-width: 1140px; }

/* ── Cards ──────────────────────────────────────────── */
.card {
  background: var(--tf-surface);
  border: 1px solid var(--tf-border);
  border-radius: var(--tf-radius);
  box-shadow: var(--tf-shadow);
  transition: transform var(--tf-transition), box-shadow var(--tf-transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--tf-shadow-lg);
}

.card-header {
  background: var(--tf-surface-2);
  border-bottom: 1px solid var(--tf-border);
  color: var(--tf-text);
  font-weight: 600;
  padding: .75rem 1.15rem;
}

.card-body { padding: 1.25rem; }

.card-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: .5rem;
}

.card-text { color: var(--tf-text-dim); font-size: .92rem; }

/* stat cards — no hover lift */
.card.bg-primary, .card.bg-secondary, .card.bg-warning, .card.bg-success, .card.bg-danger {
  border: none;
}
.card.bg-primary  { background: linear-gradient(135deg, #1d9bf0, #0d6ebd) !important; }
.card.bg-secondary { background: var(--tf-surface-3) !important; border: 1px solid var(--tf-border) !important; }
.card.bg-warning  { background: linear-gradient(135deg, #ffd600, #f5a623) !important; color: #111 !important; }
.card.bg-success  { background: linear-gradient(135deg, #00c853, #009624) !important; }
.card.bg-danger   { background: linear-gradient(135deg, #ff4d4f, #cf1322) !important; }

/* ── Buttons ────────────────────────────────────────── */
.btn {
  font-weight: 600;
  font-size: .9rem;
  padding: .55rem 1.25rem;
  border-radius: var(--tf-radius-sm);
  border: none;
  transition: all var(--tf-transition);
  letter-spacing: -.01em;
  cursor: pointer;
}

.btn:focus, .btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 2px var(--tf-bg), 0 0 0 4px var(--tf-accent);
  outline: none;
}

.btn-primary {
  background: var(--tf-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--tf-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(29,155,240,.35);
}

.btn-outline-secondary {
  background: transparent;
  color: var(--tf-text-dim);
  border: 1px solid var(--tf-border);
}
.btn-outline-secondary:hover {
  background: var(--tf-surface-2);
  color: var(--tf-text);
  border-color: var(--tf-text-mute);
}

.btn-outline-primary {
  background: transparent;
  color: var(--tf-accent);
  border: 1px solid var(--tf-accent);
}
.btn-outline-primary:hover {
  background: rgba(29,155,240,.12);
  color: var(--tf-accent);
}

.btn-outline-warning {
  background: transparent;
  color: var(--tf-yellow);
  border: 1px solid var(--tf-yellow);
}
.btn-outline-warning:hover {
  background: rgba(255,214,0,.1);
  color: var(--tf-yellow);
}

.btn-outline-danger {
  background: transparent;
  color: var(--tf-red);
  border: 1px solid var(--tf-red);
}
.btn-outline-danger:hover {
  background: rgba(255,77,79,.1);
}

.btn-success {
  background: var(--tf-green);
  color: #fff;
}
.btn-success:hover {
  background: #00b348;
  transform: translateY(-1px);
}

.btn-lg {
  padding: .75rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--tf-radius);
}

.btn-sm {
  padding: .3rem .7rem;
  font-size: .82rem;
}

/* ── Forms ──────────────────────────────────────────── */
.form-control, .form-select {
  background: var(--tf-surface-2);
  border: 1px solid var(--tf-border);
  color: var(--tf-text);
  border-radius: var(--tf-radius-sm);
  padding: .6rem .85rem;
  font-size: .92rem;
  transition: border-color var(--tf-transition), box-shadow var(--tf-transition);
}

.form-control:focus, .form-select:focus {
  background: var(--tf-surface-3);
  border-color: var(--tf-accent);
  color: var(--tf-text);
  box-shadow: 0 0 0 3px rgba(29,155,240,.18);
}

.form-control::placeholder { color: var(--tf-text-mute); }

.form-label {
  color: var(--tf-text-dim);
  font-weight: 600;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .35rem;
}

textarea.form-control { line-height: 1.5; }

/* ── Tables ─────────────────────────────────────────── */
.table {
  color: var(--tf-text);
  --bs-table-bg: transparent;
  --bs-table-striped-bg: var(--tf-surface);
  --bs-table-hover-bg: var(--tf-surface-2);
  border-color: var(--tf-border);
}

.table thead th {
  background: var(--tf-surface-2);
  border-bottom: 2px solid var(--tf-border);
  font-weight: 700;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--tf-text-dim);
  padding: .75rem 1rem;
}

.table td {
  padding: .75rem 1rem;
  border-color: var(--tf-border);
  vertical-align: middle;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background: var(--tf-surface);
}

/* ── Badges ─────────────────────────────────────────── */
.badge {
  font-weight: 600;
  font-size: .78rem;
  padding: .35em .7em;
  border-radius: 50px;
  letter-spacing: .02em;
}
.badge.bg-secondary { background: var(--tf-surface-3) !important; color: var(--tf-text-dim); }
.badge.bg-warning   { background: rgba(255,214,0,.15) !important; color: var(--tf-yellow) !important; }
.badge.bg-success   { background: rgba(0,200,83,.15) !important; color: var(--tf-green) !important; }
.badge.bg-danger    { background: rgba(255,77,79,.15) !important; color: var(--tf-red) !important; }

/* ── List Groups ────────────────────────────────────── */
.list-group-item {
  background: var(--tf-surface);
  border-color: var(--tf-border);
  color: var(--tf-text);
  padding: 1rem 1.15rem;
  transition: background var(--tf-transition);
}
.list-group-item:hover { background: var(--tf-surface-2); }
.list-group-item + .list-group-item { border-top-color: var(--tf-border); }

/* ── Alerts ─────────────────────────────────────────── */
.alert {
  border-radius: var(--tf-radius-sm);
  border: none;
  font-size: .9rem;
  font-weight: 500;
}
.alert-success { background: rgba(0,200,83,.12); color: var(--tf-green); }
.alert-info    { background: rgba(29,155,240,.12); color: var(--tf-accent); }
.alert-warning { background: rgba(255,214,0,.12); color: var(--tf-yellow); }
.alert-danger  { background: rgba(255,77,79,.12); color: var(--tf-red); }

/* ── Validation ────────────────────────────────────── */
.text-danger {
  color: var(--tf-red) !important;
  font-size: .85rem;
}

.field-validation-error {
  color: var(--tf-red);
  font-size: .82rem;
}

.validation-summary-errors ul {
  margin-bottom: 0;
  padding-left: 1.2rem;
}

.input-validation-error {
  border-color: var(--tf-red) !important;
}

/* disabled inputs */
.form-control:disabled, .form-control[disabled],
.form-select:disabled, .form-select[disabled] {
  background: var(--tf-surface-3);
  color: var(--tf-text-mute);
  opacity: .7;
  cursor: not-allowed;
}

/* ── Footer ─────────────────────────────────────────── */
footer, .footer {
  background: var(--tf-surface);
  border-top: 1px solid var(--tf-border) !important;
  color: var(--tf-text-mute);
  font-size: .85rem;
}

/* ── Identity / Login Pages ─────────────────────────── */
.identity-page, [class*="Account"] {
  color: var(--tf-text);
}

input[type="email"],
input[type="password"],
input[type="text"] {
  background: var(--tf-surface-2);
  border: 1px solid var(--tf-border);
  color: var(--tf-text);
  border-radius: var(--tf-radius-sm);
  padding: .6rem .85rem;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus {
  background: var(--tf-surface-3);
  border-color: var(--tf-accent);
  color: var(--tf-text);
  outline: none;
  box-shadow: 0 0 0 3px rgba(29,155,240,.18);
}

/* ── Profile Avatar ─────────────────────────────────── */
.rounded-circle {
  border: 3px solid var(--tf-border);
  box-shadow: 0 0 0 3px var(--tf-surface);
}

/* ── Compose-specific ───────────────────────────────── */
#char-count {
  font-family: var(--tf-font-mono);
  font-size: .85rem;
}

/* ── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--tf-bg); }
::-webkit-scrollbar-thumb {
  background: var(--tf-surface-3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--tf-border); }

/* ── Utilities ──────────────────────────────────────── */
.text-accent { color: var(--tf-accent); }
.bg-surface { background: var(--tf-surface); }
.border-subtle { border-color: var(--tf-border) !important; }
.glow-accent { box-shadow: 0 0 20px rgba(29,155,240,.25); }

/* smooth-in for page sections */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .45s ease-out both; }

/* ── Dashboard Sidebar ─────────────────────────────── */
.tf-dashboard-layout {
  display: flex;
  min-height: calc(100vh - 53px);
}

.tf-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--tf-surface);
  border-right: 1px solid var(--tf-border);
  padding: 1.25rem 0;
  overflow-y: auto;
}

.tf-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.tf-sidebar-section {
  padding: 0 .75rem;
  margin-bottom: .75rem;
}

.tf-sidebar-heading {
  display: block;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--tf-text-mute);
  padding: .25rem .65rem;
  margin-bottom: .15rem;
}

.tf-sidebar-link {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem .65rem;
  border-radius: var(--tf-radius-sm);
  color: var(--tf-text-dim);
  font-size: .88rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--tf-transition);
}

.tf-sidebar-link:hover {
  background: var(--tf-surface-2);
  color: var(--tf-text);
}

.tf-sidebar-link.active {
  background: rgba(29,155,240,.12);
  color: var(--tf-accent);
}

.tf-sidebar-link svg {
  flex-shrink: 0;
  opacity: .7;
}

.tf-sidebar-link:hover svg,
.tf-sidebar-link.active svg {
  opacity: 1;
}

.tf-dashboard-main {
  flex: 1;
  min-width: 0;
  padding: 2rem 2.5rem;
}

/* ── Responsive Tweaks ──────────────────────────────── */
@media (max-width: 768px) {
  .tf-sidebar {
    width: 56px;
    padding: .75rem 0;
  }
  .tf-sidebar-heading { display: none; }
  .tf-sidebar-link span,
  .tf-sidebar-link { font-size: 0; gap: 0; justify-content: center; }
  .tf-sidebar-link svg { font-size: initial; }
  .tf-sidebar-section { padding: 0 .35rem; }
  .tf-dashboard-main { padding: 1.25rem; }
}

@media (max-width: 576px) {
  .display-4 { font-size: 2.2rem !important; }
  .card-body { padding: 1rem; }
  .btn-lg { padding: .65rem 1.4rem; font-size: .95rem; }
}