/* ============================================================
   VINOVA License Portal — Styles
   Matches www.vinova.uk theme
   ============================================================ */

:root {
  --navy: #0a1628;
  --deep-blue: #0f2342;
  --ocean: #1a3a5c;
  --accent: #38bdf8;
  --accent-glow: #7dd3fc;
  --accent-warm: #f59e0b;
  --green: #34d399;
  --danger: #ef4444;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --card-bg: rgba(15, 35, 66, 0.6);
  --border: rgba(56, 189, 248, 0.15);
  --border-hover: rgba(56, 189, 248, 0.35);
  --sidebar-width: 240px;
  --navbar-height: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --transition: 0.2s ease;
}

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

html { font-size: 15px; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--navy);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* --- Scrollbar --------------------------------------------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--ocean); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* --- Navbar ------------------------------------------------ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
}

.brand-text {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text);
  line-height: 1;
}

.brand-wave {
  width: 100%;
  height: 6px;
  margin-top: 2px;
}

.brand-wave path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
}

.brand-subtitle {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 2px;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.navbar-user {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.navbar-user strong {
  color: var(--text);
  font-weight: 500;
}

/* --- Sidebar ----------------------------------------------- */
.sidebar {
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: rgba(10, 22, 40, 0.5);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  overflow-y: auto;
  z-index: 900;
}

.sidebar-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--transition);
}

.sidebar-nav a:hover {
  color: var(--text);
  background: rgba(56, 189, 248, 0.05);
}

.sidebar-nav a.active {
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  border-left-color: var(--accent);
}

.sidebar-nav .nav-icon {
  width: 20px;
  height: 20px;
  opacity: 0.7;
  flex-shrink: 0;
}

.sidebar-nav a.active .nav-icon,
.sidebar-nav a:hover .nav-icon {
  opacity: 1;
}

/* --- Main Content ------------------------------------------ */
.main-content {
  margin-left: var(--sidebar-width);
  margin-top: var(--navbar-height);
  padding: 32px;
  min-height: calc(100vh - var(--navbar-height));
}

/* --- Page Header ------------------------------------------- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-header h1 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
}

/* --- Cards ------------------------------------------------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
}

.card-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

/* Stat Cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition), transform var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.stat-card.stat-accent .stat-value { color: var(--accent); }
.stat-card.stat-green .stat-value { color: var(--green); }
.stat-card.stat-warm .stat-value { color: var(--accent-warm); }
.stat-card.stat-danger .stat-value { color: var(--danger); }

.stat-card .stat-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy);
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-glow);
  border-color: var(--accent-glow);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover:not(:disabled) {
  background: #dc2626;
  border-color: #dc2626;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}
.btn-outline:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
}

.btn-outline-danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--border);
}
.btn-outline-danger:hover:not(:disabled) {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.08);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 8px 12px;
}
.btn-ghost:hover:not(:disabled) {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.btn-icon {
  padding: 8px;
  border-radius: 6px;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Forms ------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-input,
.form-select,
.form-textarea {
  background: var(--ocean);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8.825l-5-5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-select option {
  background: var(--deep-blue);
  color: var(--text);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

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

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* Radio group */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-pill {
  display: flex;
  align-items: center;
}

.radio-pill input[type="radio"] {
  display: none;
}

.radio-pill label {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.radio-pill input[type="radio"]:checked + label {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

.radio-pill label:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

/* Search bar */
.search-bar {
  position: relative;
}

.search-bar input {
  padding-left: 40px;
}

.search-bar .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  background: rgba(15, 35, 66, 0.8);
}

thead th {
  padding: 14px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid rgba(56, 189, 248, 0.06);
  transition: background var(--transition);
}

tbody tr:nth-child(even) {
  background: rgba(15, 35, 66, 0.3);
}

tbody tr:hover {
  background: rgba(56, 189, 248, 0.06);
}

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

.table-clickable tbody tr {
  cursor: pointer;
}

.table-empty {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Status Badges ----------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 20px;
  white-space: nowrap;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-active {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
}
.badge-active .badge-dot { background: var(--green); }

.badge-expiring {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-warm);
}
.badge-expiring .badge-dot { background: var(--accent-warm); }

.badge-expired {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger);
}
.badge-expired .badge-dot { background: var(--danger); }

.badge-revoked {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
}
.badge-revoked .badge-dot { background: var(--text-muted); }

/* --- Modal ------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 24px;
  animation: fadeIn 0.15s ease;
}

.modal {
  background: var(--deep-blue);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.2s ease;
}

.modal-wide { max-width: 720px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- Toast Notifications ----------------------------------- */
.toast-container {
  position: fixed;
  top: calc(var(--navbar-height) + 16px);
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 3000;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  pointer-events: auto;
  animation: toastIn 0.25s ease;
  max-width: 400px;
}

.toast-success {
  background: rgba(52, 211, 153, 0.15);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--green);
}

.toast-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger);
}

.toast-info {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent);
}

.toast.removing {
  animation: toastOut 0.2s ease forwards;
}

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* --- Login Screen ------------------------------------------ */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.06) 0%, transparent 60%);
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-card .brand-logo {
  align-items: center;
  margin-bottom: 32px;
}

.login-card .brand-text {
  font-size: 2rem;
}

.login-card .brand-subtitle {
  font-size: 0.85rem;
  margin-top: 8px;
}

.login-card .form-group { text-align: left; }

.login-card .btn-primary {
  width: 100%;
  padding: 12px;
  font-size: 0.95rem;
  margin-top: 8px;
}

.login-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* --- Charts (CSS bars) ------------------------------------- */
.chart-container {
  padding: 16px 0;
}

.bar-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bar-label {
  width: 120px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: right;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-track {
  flex: 1;
  height: 24px;
  background: rgba(56, 189, 248, 0.06);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-glow));
  border-radius: 4px;
  transition: width 0.5s ease;
  min-width: 2px;
}

.bar-fill.bar-warm {
  background: linear-gradient(90deg, var(--accent-warm), #fbbf24);
}

.bar-value {
  width: 40px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
}

/* --- Detail View ------------------------------------------- */
.detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.detail-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  cursor: pointer;
}
.detail-back:hover { color: var(--accent); }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.detail-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-field .field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-field .field-value {
  font-size: 0.95rem;
  color: var(--text);
}

/* --- License Key Display ----------------------------------- */
.license-key-display {
  background: var(--navy);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin: 16px 0;
  position: relative;
}

.license-key-display pre {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.95rem;
  color: var(--accent);
  word-break: break-all;
  white-space: pre-wrap;
  margin: 0;
  padding-right: 40px;
}

.license-key-display .copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  padding: 6px 8px;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all var(--transition);
}

.license-key-display .copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Filter Bar -------------------------------------------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-bar .form-select,
.filter-bar .form-input {
  width: auto;
  min-width: 180px;
}

/* --- Grid Layouts ------------------------------------------ */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* --- Utility Classes --------------------------------------- */
.text-accent { color: var(--accent); }
.text-green { color: var(--green); }
.text-warm { color: var(--accent-warm); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-mono { font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.hidden { display: none !important; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 0;
  gap: 12px;
  color: var(--text-muted);
}

/* --- Responsive -------------------------------------------- */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; padding: 20px 16px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-bar .form-select,
  .filter-bar .form-input { width: 100%; min-width: unset; }
  .modal { margin: 16px; }
  .navbar { padding: 0 16px; }
  .page-header { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .login-card { padding: 32px 24px; }
}