:root {
  --bg:        #0d1117;
  --surface:   #161b22;
  --border:    #30363d;
  --accent:    #58a6ff;
  --accent2:   #3fb950;
  --warn:      #d29922;
  --danger:    #f85149;
  --text:      #c9d1d9;
  --muted:     #8b949e;
  --radius:    6px;
  --nav-w:     220px;
}

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

html { font-size: 14px; }

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

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

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0;
  width: var(--nav-w);
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow-y: auto;
  z-index: 100;
}

nav .nav-brand {
  display: block;
  padding: 20px 16px 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  letter-spacing: .02em;
  text-decoration: none;
}

nav .nav-brand span {
  color: var(--accent);
}

nav a:not(.nav-brand) {
  display: block;
  padding: 10px 16px;
  color: var(--muted);
  font-size: .9rem;
  transition: background .15s, color .15s;
  text-decoration: none;
}

nav a:not(.nav-brand):hover,
nav a:not(.nav-brand).active {
  background: rgba(88,166,255,.08);
  color: var(--text);
}

nav .nav-section {
  padding: 20px 16px 4px;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--accent);
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

nav .nav-logout {
  margin-top: auto;
  border-top: 1px solid var(--border);
}

/* ── MAIN ── */
main {
  margin-left: var(--nav-w);
  padding: 28px 32px;
  min-height: 100vh;
}

/* ── PAGE HEADER ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

/* ── KPI CARDS ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.kpi-card .kpi-label {
  font-size: .8rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.kpi-card .kpi-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.kpi-card .kpi-sub {
  font-size: .75rem;
  color: var(--muted);
  margin-top: 4px;
}

.kpi-card.accent  .kpi-value { color: var(--accent); }
.kpi-card.success .kpi-value { color: var(--accent2); }
.kpi-card.warn    .kpi-value { color: var(--warn); }
.kpi-card.danger  .kpi-value { color: var(--danger); }

/* ── CARD ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: .95rem;
}

.card-body { padding: 20px; }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

th {
  text-align: left;
  padding: 10px 12px;
  color: var(--muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

/* ── STATUS BADGE ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 500;
  white-space: nowrap;
}

.badge-draft          { background: rgba(139,148,158,.15); color: var(--muted); }
.badge-pending_review { background: rgba(210,153,34,.15);  color: var(--warn); }
.badge-approved       { background: rgba(63,185,80,.15);   color: var(--accent2); }
.badge-published      { background: rgba(88,166,255,.15);  color: var(--accent); }
.badge-rejected       { background: rgba(248,81,73,.15);   color: var(--danger); }
.badge-failed         { background: rgba(248,81,73,.15);   color: var(--danger); }

/* ── BUTTON ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius);
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity .15s;
  text-decoration: none;
}

.btn:hover { opacity: .85; text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: #0d1117;
  border-color: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

/* ── LOGIN ── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-box {
  width: 100%;
  max-width: 360px;
  box-sizing: border-box;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 36px;
}

.login-box h1 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.login-box .login-sub {
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 28px;
}

.login-box .login-sub span {
  color: var(--accent);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: .82rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--text);
  font-size: .9rem;
  outline: none;
  transition: border-color .15s;
}

.form-group input:focus {
  border-color: var(--accent);
}

.form-error {
  background: rgba(248,81,73,.1);
  border: 1px solid rgba(248,81,73,.3);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: .85rem;
  margin-bottom: 16px;
}

.btn-login {
  width: 100%;
  justify-content: center;
  padding: 10px;
  margin-top: 8px;
}

/* ── CHART BAR ── */
.bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
}

.bar-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  transition: width .4s;
}

/* ── UTIL ── */
.text-muted  { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-right  { text-align: right; }
.mt-0 { margin-top: 0; }
.truncate {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  max-width: 320px;
}

/* ── FORM ELEMENTS ── */
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--text);
  font-size: .9rem;
  outline: none;
  transition: border-color .15s;
  font-family: inherit;
}

.form-group textarea {
  resize: vertical;
  min-height: 88px;
  line-height: 1.5;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b949e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

.form-group textarea:focus,
.form-group select:focus,
.form-group input:focus {
  border-color: var(--accent);
}

.form-group .required { color: var(--danger); }

.form-hint {
  margin-top: 4px;
  font-size: .8rem;
  color: var(--muted);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  color: var(--text);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
}

.card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}

/* ── DANGER BUTTON ── */
.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(248,81,73,.4);
}

.btn-danger:hover { background: rgba(248,81,73,.08); }

/* ── PRIORITY BADGE ── */
.priority-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .75rem;
  font-weight: 600;
}

.priority-badge.p5 { background: rgba(248,81,73,.15);  color: var(--danger); }
.priority-badge.p4 { background: rgba(210,153,34,.15);  color: var(--warn); }
.priority-badge.p3 { background: rgba(88,166,255,.15);  color: var(--accent); }
.priority-badge.p2 { background: rgba(139,148,158,.12); color: var(--muted); }
.priority-badge.p1 { background: rgba(139,148,158,.08); color: var(--muted); }

/* ── TAG ── */
.tag {
  display: inline-block;
  background: rgba(88,166,255,.1);
  color: var(--accent);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: .73rem;
  margin-right: 3px;
}

/* ── FLASH MESSAGE ── */
.flash {
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: .88rem;
  margin-bottom: 20px;
}

.flash-success {
  background: rgba(63,185,80,.1);
  border: 1px solid rgba(63,185,80,.3);
  color: var(--accent2);
}

/* ── CONTENT PREVIEW ── */
.content-preview {
  line-height: 1.8;
  color: var(--text);
  font-size: .92rem;
}

.content-preview h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--text);
}

.content-preview h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 16px 0 6px;
  color: var(--text);
}

.content-preview p { margin-bottom: 12px; }

/* ── FILTER BAR ── */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-bar a {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .82rem;
  border: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  transition: background .15s, color .15s;
}

.filter-bar a:hover,
.filter-bar a.active {
  background: rgba(88,166,255,.1);
  color: var(--accent);
  border-color: rgba(88,166,255,.3);
  text-decoration: none;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  :root { --nav-w: 0px; }

  nav {
    position: static;
    width: 100%;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  nav .nav-brand { padding: 12px 16px; border-bottom: none; }
  nav .nav-section { display: none; }
  nav .nav-logout { margin-top: 0; border-top: none; border-left: 1px solid var(--border); }

  nav a:not(.nav-brand) {
    padding: 12px 14px;
    font-size: .82rem;
  }

  main { margin-left: 0; padding: 16px; }

  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .kpi-card { padding: 16px 18px; }
}

/* ── SMARTPHONE (≤375px) ── */
@media (max-width: 375px) {
  html { font-size: 13px; }

  nav { display: none; }

  main { padding: 12px; }

  .kpi-grid { grid-template-columns: 1fr; gap: 12px; }

  .kpi-card { padding: 16px; }

  .login-box { padding: 32px 24px; }

  table { font-size: .75rem; }

  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .page-header h1 { font-size: 1.1rem; }

  .truncate { max-width: 100%; }
}