/* ============================================================
   Folder Inventory Dashboard — assets/css/style.css
   Premium dark theme with cyan accent
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --bg-base:      #0a0c10;
  --bg-surface:   #0f1117;
  --bg-card:      #141720;
  --bg-hover:     #1a1f2e;
  --bg-input:     #1a1f2e;

  --border:       #252a38;
  --border-focus: #00d4ff;

  --accent:       #00d4ff;
  --accent-dim:   rgba(0, 212, 255, 0.12);
  --accent-glow:  rgba(0, 212, 255, 0.25);

  --green:        #00e676;
  --green-dim:    rgba(0, 230, 118, 0.12);
  --red:          #ff4444;
  --red-dim:      rgba(255, 68, 68, 0.12);
  --yellow:       #ffca28;
  --yellow-dim:   rgba(255, 202, 40, 0.12);

  --text-primary:   #e8ecf4;
  --text-secondary: #8892a4;
  --text-muted:     #4a5568;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 20px var(--accent-glow);

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Navigation ────────────────────────────────────────────── */
.navbar {
  background: var(--bg-surface) !important;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 var(--border);
}

.navbar-brand {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  color: var(--accent) !important;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-brand .brand-icon {
  width: 28px; height: 28px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 12px;
}

.nav-link {
  color: var(--text-secondary) !important;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  padding: 0.4rem 0.75rem !important;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; gap: 6px;
}
.nav-link:hover, .nav-link.active {
  color: var(--accent) !important;
  background: var(--accent-dim);
}

/* ── Page Layout ───────────────────────────────────────────── */
.page-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.page-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--font-mono);
}

/* ── Stat Cards ────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: var(--transition);
}

.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.stat-card:hover::before { opacity: 1; }

.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.stat-icon.blue   { background: var(--accent-dim); color: var(--accent); }
.stat-icon.green  { background: var(--green-dim);  color: var(--green); }
.stat-icon.red    { background: var(--red-dim);    color: var(--red); }
.stat-icon.yellow { background: var(--yellow-dim); color: var(--yellow); }

.stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

/* ── Machine Cards ─────────────────────────────────────────── */
.machine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 1.25rem;
}

.machine-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}

.machine-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.machine-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow), var(--shadow-card);
  color: inherit;
  text-decoration: none;
}
.machine-card:hover::after { opacity: 1; }

.machine-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.machine-avatar {
  width: 42px; height: 42px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
}

.machine-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.machine-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}

.machine-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.meta-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
}

.meta-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.meta-value {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  font-family: var(--font-mono);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Status Badge ──────────────────────────────────────────── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-badge.online {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(0,230,118,0.3);
}

.status-badge.offline {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(255,68,68,0.3);
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-badge.online .status-dot {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse-green 2s infinite;
}

.status-badge.offline .status-dot { background: var(--red); }

@keyframes pulse-green {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Search & Controls ─────────────────────────────────────── */
.controls-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 400px;
}

.search-wrap i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 0.55rem 0.75rem 0.55rem 2.25rem;
  transition: var(--transition);
  outline: none;
}

.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.filter-select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 0.55rem 0.75rem;
  outline: none;
  cursor: pointer;
  transition: var(--transition);
}
.filter-select:focus { border-color: var(--accent); }
.filter-select option { background: var(--bg-card); }

/* ── Buttons ───────────────────────────────────────────────── */
.btn-accent {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-accent:hover { background: #33dcff; box-shadow: var(--shadow-glow); }

.btn-ghost {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 0.55rem 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.btn-danger {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(255,68,68,0.3);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}
.btn-danger:hover { background: var(--red); color: #fff; }

/* ── Data Table ────────────────────────────────────────────── */
.data-table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead th {
  background: var(--bg-surface);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-hover); }

.data-table td {
  padding: 0.75rem 1rem;
  font-size: 13px;
  color: var(--text-primary);
}

.folder-name-cell {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 12px;
}

.time-cell {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 11px;
}

/* ── Pagination ────────────────────────────────────────────── */
.pagination-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pagination-info {
  font-size: 12px;
  color: var(--text-muted);
}

.pagination-buttons {
  display: flex;
  gap: 4px;
}

.page-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-mono);
}
.page-btn:hover, .page-btn.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Machine Detail ─────────────────────────────────────────── */
.detail-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.detail-item { }
.detail-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 4px;
}
.detail-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 13px;
  text-decoration: none;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}
.back-link:hover { color: var(--accent); text-decoration: none; }

/* ── Login Page ─────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  background: var(--bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background-image: radial-gradient(ellipse at 20% 50%, rgba(0,212,255,0.04) 0%, transparent 60%),
                    radial-gradient(ellipse at 80% 20%, rgba(0,212,255,0.03) 0%, transparent 50%);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-card);
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo-icon {
  width: 56px; height: 56px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 1.5rem;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-glow);
}

.login-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.login-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-control {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 0.65rem 0.85rem;
  outline: none;
  transition: var(--transition);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.alert-error {
  background: var(--red-dim);
  border: 1px solid rgba(255,68,68,0.3);
  color: var(--red);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  font-size: 13px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Empty State ────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
}
.empty-state i { font-size: 2.5rem; margin-bottom: 1rem; color: var(--border); }
.empty-state p { font-size: 14px; }

/* ── Loading Spinner ────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  z-index: 9999;
  animation: loading-bar 1s ease forwards;
}
@keyframes loading-bar { from { width: 0; } to { width: 100%; } }

/* ── Auto-refresh indicator ─────────────────────────────────── */
.refresh-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.refresh-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-green 2s infinite;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .page-wrapper { padding: 1rem; }
  .machine-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .controls-bar { flex-direction: column; align-items: stretch; }
  .search-wrap { max-width: 100%; }
  .page-header { flex-direction: column; align-items: flex-start; }
  .data-table-wrap { overflow-x: auto; }
  .detail-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .login-card { padding: 1.5rem; }
}

/* ── No-results hidden ──────────────────────────────────────── */
.hidden { display: none !important; }