/* PHiii – Design System
   Dark-first, professional security SaaS aesthetic
   Font: System stack with IBM Plex Mono for accents */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Inter:wght@400;500;600&display=swap');

/* ── Variables ──────────────────────────────────────────────────────────── */
:root {
  --bg:       #0d0f14;
  --bg2:      #141720;
  --bg3:      #1c1f2a;
  --bg4:      #242836;
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.12);

  --text:     #e8eaf0;
  --text2:    #9ca3b0;
  --text3:    #5c6370;

  --accent:   #4f8ef7;
  --accent2:  #3a7ae6;
  --accent-bg: rgba(79,142,247,0.1);
  --accent-border: rgba(79,142,247,0.3);

  --success:  #2fb77a;
  --success-bg: rgba(47,183,122,0.1);
  --warning:  #f59e0b;
  --warning-bg: rgba(245,158,11,0.1);
  --danger:   #ef4444;
  --danger-bg: rgba(239,68,68,0.1);
  --info:     #38bdf8;

  --radius:   8px;
  --radius-lg: 12px;
  --shadow:   0 1px 3px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);

  --sidebar-w: 240px;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset & Base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
}

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

img { max-width: 100%; display: block; }

/* ── Typography ─────────────────────────────────────────────────────────── */
h1 { font-size: 1.6rem; font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
h3 { font-size: 1rem; font-weight: 600; }
h4, h5 { font-size: 0.9rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: 0.06em; }

.mono { font-family: var(--font-mono); font-size: 0.85em; }

/* ── Layout: App shell ──────────────────────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

/* ── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  grid-row: 1 / -1;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo .logo-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  color: white;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.sidebar-logo .logo-text {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: 0.1em;
}

.sidebar-logo .logo-text span {
  color: var(--accent);
}

.sidebar-nav {
  padding: 12px 0;
  flex: 1;
}

.nav-section {
  padding: 16px 14px 4px;
}

.nav-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text3);
  padding: 0 6px;
  margin-bottom: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  margin-bottom: 1px;
}

.nav-item:hover {
  background: var(--bg3);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-bg);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}

.nav-item .nav-icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
  flex-shrink: 0;
}

.nav-item.active .nav-icon { opacity: 1; }

.sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}

.user-chip:hover { background: var(--bg3); }

.user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg4);
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  font-family: var(--font-mono);
  flex-shrink: 0;
}

.user-info { min-width: 0; }
.user-name { font-size: 0.8rem; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 0.7rem; color: var(--text3); }

/* ── Top bar ────────────────────────────────────────────────────────────── */
.topbar {
  grid-column: 2;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-title { font-size: 0.95rem; font-weight: 600; color: var(--text); }

.topbar-actions { display: flex; align-items: center; gap: 10px; }

/* ── Main content ───────────────────────────────────────────────────────── */
.main {
  grid-column: 2;
  padding: 28px;
  max-width: 1200px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}

.page-title { }
.page-title h1 { margin-bottom: 2px; }
.page-title p { color: var(--text2); font-size: 0.875rem; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.card-title { font-size: 0.875rem; font-weight: 600; color: var(--text); }

/* ── Stat cards ─────────────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text3);
}

.stat-value {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.1;
  font-family: var(--font-mono);
  color: var(--text);
}

.stat-sub { font-size: 0.75rem; color: var(--text3); }
.stat-card.accent { border-color: var(--accent-border); background: var(--accent-bg); }
.stat-card.accent .stat-value { color: var(--accent); }
.stat-card.success { border-color: rgba(47,183,122,0.2); }
.stat-card.success .stat-value { color: var(--success); }
.stat-card.danger { border-color: rgba(239,68,68,0.2); }
.stat-card.danger .stat-value { color: var(--danger); }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
  font-family: inherit;
  text-decoration: none;
}

.btn svg { width: 15px; height: 15px; flex-shrink: 0; }

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent2); color: white; }

.btn-secondary {
  background: var(--bg3);
  color: var(--text);
  border-color: var(--border2);
}
.btn-secondary:hover { background: var(--bg4); }

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: rgba(239,68,68,0.3);
}
.btn-danger:hover { background: rgba(239,68,68,0.2); }

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--bg3); color: var(--text); }

.btn-sm { padding: 5px 11px; font-size: 0.8rem; }
.btn-lg { padding: 11px 22px; font-size: 0.9rem; }

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 6px;
}
.form-label .req { color: var(--danger); margin-left: 2px; }

.form-control {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 9px 13px;
  color: var(--text);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.15);
}

.form-control::placeholder { color: var(--text3); }

.form-control.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}

.form-error { font-size: 0.78rem; color: var(--danger); margin-top: 5px; }
.form-hint  { font-size: 0.78rem; color: var(--text3); margin-top: 5px; }

textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Checkbox */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
}

.form-check-label { font-size: 0.85rem; color: var(--text2); }

/* ── Tables ─────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

thead {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}

thead th {
  padding: 11px 16px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text3);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--bg3); }

tbody td {
  padding: 12px 16px;
  color: var(--text);
  vertical-align: middle;
}

.td-muted { color: var(--text2); }
.td-mono { font-family: var(--font-mono); font-size: 0.8rem; }

/* ── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.badge-success { background: var(--success-bg); color: var(--success); border-color: rgba(47,183,122,0.25); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  border-color: rgba(239,68,68,0.25); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(245,158,11,0.25); }
.badge-info    { background: rgba(56,189,248,0.1); color: var(--info); border-color: rgba(56,189,248,0.25); }
.badge-neutral { background: var(--bg4); color: var(--text2); border-color: var(--border2); }
.badge-accent  { background: var(--accent-bg); color: var(--accent); border-color: var(--accent-border); }

/* ── Alerts / Flash ─────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  border: 1px solid transparent;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-success { background: var(--success-bg); color: var(--success); border-color: rgba(47,183,122,0.3); }
.alert-error   { background: var(--danger-bg);  color: var(--danger);  border-color: rgba(239,68,68,0.3); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(245,158,11,0.3); }
.alert-info    { background: rgba(56,189,248,0.08); color: var(--info); border-color: rgba(56,189,248,0.25); }

/* ── Pagination ─────────────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px;
  justify-content: center;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  font-size: 0.83rem;
  color: var(--text2);
  border: 1px solid transparent;
  transition: all 0.12s;
}
.page-link:hover { background: var(--bg3); color: var(--text); }
.page-link.active { background: var(--accent-bg); color: var(--accent); border-color: var(--accent-border); }
.page-link.disabled { opacity: 0.3; pointer-events: none; }

/* ── Progress bar ───────────────────────────────────────────────────────── */
.progress {
  height: 6px;
  background: var(--bg4);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.5s ease;
}
.progress-bar.success { background: var(--success); }
.progress-bar.danger  { background: var(--danger); }
.progress-bar.warning { background: var(--warning); }

/* ── Auth pages ─────────────────────────────────────────────────────────── */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
  background: var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}

.auth-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  border-radius: 14px;
  margin: 0 auto 12px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.auth-logo h1 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  color: var(--text);
  font-weight: 500;
}

.auth-logo h1 span { color: var(--accent); }
.auth-logo p { color: var(--text3); font-size: 0.8rem; margin-top: 4px; }

.auth-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.auth-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.auth-subtitle {
  color: var(--text2);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--text3);
}

.auth-footer a { color: var(--accent); }

/* ── File upload drop zone ──────────────────────────────────────────────── */
.dropzone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius-lg);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.dropzone:hover, .dropzone.drag-over {
  border-color: var(--accent);
  background: var(--accent-bg);
}
.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}
.dropzone-icon { font-size: 2rem; margin-bottom: 10px; opacity: 0.4; }
.dropzone-text { color: var(--text2); font-size: 0.875rem; }
.dropzone-hint { color: var(--text3); font-size: 0.78rem; margin-top: 4px; }

/* ── Empty states ───────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text3);
}
.empty-state-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.3; }
.empty-state h3 { color: var(--text2); font-size: 1rem; margin-bottom: 6px; }
.empty-state p  { font-size: 0.85rem; margin-bottom: 20px; }

/* ── Utility ────────────────────────────────────────────────────────────── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.ml-auto { margin-left: auto; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--text2); }
.text-sm { font-size: 0.82rem; }
.text-xs { font-size: 0.72rem; }
.fw-600 { font-weight: 600; }
.w-100 { width: 100%; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .topbar, .main { grid-column: 1; }
  .main { padding: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}