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

:root {
  --primary:     #0A2A4E;
  --primary-light:#143d6b;
  --accent:      #FF5733;
  --accent-hover:#e64d2e;
  --off-white:   #EAEFF4;
  --light-gray:  #F3F4F6;
  --graphite:    #333333;
  --void-black:  #02060b;
  --muted:       #8899aa;
  --border:      rgba(255,255,255,.10);
  --border-light:rgba(255,255,255,.06);
  --success:     #22C55E;
  --danger:      #EF4444;
  --warning:     #F59E0B;
  --info:        #3B82F6;
  --glass-bg:    rgba(255,255,255,.05);
  --glass-border:rgba(255,255,255,.10);
  --glow:        0 0 40px rgba(255,87,51,.15);
  --glow-strong: 0 0 40px rgba(255,87,51,.35);
}

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

body {
  font-family: 'Lato', sans-serif;
  background: var(--void-black);
  color: var(--off-white);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── MESH GRADIENT BACKGROUND ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(10,42,78,.9) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(255,87,51,.08) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(10,42,78,.5) 0%, transparent 60%);
  animation: mesh-flow 20s ease-in-out infinite alternate;
}

@keyframes mesh-flow {
  0%   { transform: scale(1) translate(0, 0); }
  50%  { transform: scale(1.05) translate(-1%, 2%); }
  100% { transform: scale(1) translate(1%, -1%); }
}

/* ── HEADER ── */
header {
  background: rgba(10,42,78,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  color: #fff;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-seal {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Poppins', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(255,87,51,.2);
}

header h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .02em;
}

header p {
  font-size: .7rem;
  opacity: .5;
  margin-top: 2px;
  font-family: 'Lato', sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-badge {
  background: rgba(255,87,51,.12);
  border: 1px solid rgba(255,87,51,.3);
  color: var(--accent);
  font-size: .65rem;
  font-family: monospace;
  padding: 5px 14px;
  border-radius: 9999px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* ── BUTTONS ── */
.btn {
  padding: 10px 22px;
  border: none;
  border-radius: 9999px;
  font-family: 'Poppins', sans-serif;
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px rgba(255,87,51,.25);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--glow-strong);
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px rgba(255,87,51,.2);
}
.btn-gold:hover {
  background: var(--accent-hover);
  box-shadow: var(--glow-strong);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #dc2626; box-shadow: 0 0 20px rgba(239,68,68,.3); }

.btn-outline {
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--off-white);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 15px rgba(255,87,51,.1);
}

.btn-sm { padding: 6px 14px; font-size: .75rem; }

.btn:disabled { opacity: .4; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

/* ── FORMS ── */
.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: .72rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-family: 'Poppins', sans-serif;
}

.field input, .field select, .field textarea {
  width: 100%;
  padding: 11px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-family: 'Lato', sans-serif;
  font-size: .9rem;
  color: var(--off-white);
  background: rgba(255,255,255,.05);
  backdrop-filter: blur(4px);
  transition: border-color .25s, box-shadow .25s;
  outline: none;
}

.field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(255,87,51,.5);
  box-shadow: 0 0 20px rgba(255,87,51,.1);
}

.field input::placeholder, .field textarea::placeholder {
  color: rgba(255,255,255,.25);
}

.field input.error, .field select.error { border-color: var(--danger); }

.field-error {
  font-size: .72rem;
  color: var(--danger);
  margin-top: 4px;
  display: none;
}

/* ── CARDS (Glassmorphism) ── */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  box-shadow: var(--glow);
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
}

.card-header h3 {
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.card-body { padding: 24px; }

/* ── STATS ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 24px 20px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: transform .2s, box-shadow .2s;
}

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

.stat-card .stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  color: var(--off-white);
}

.stat-card .stat-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin-top: 6px;
  font-family: 'Poppins', sans-serif;
}

.stat-card.pending .stat-number { color: var(--warning); }
.stat-card.signed .stat-number { color: var(--success); }
.stat-card.expired .stat-number { color: var(--danger); }

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}

thead { background: rgba(255,255,255,.03); }

th {
  padding: 12px 16px;
  text-align: left;
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
  color: var(--off-white);
}

tr:hover { background: rgba(255,255,255,.03); }

/* ── BADGES ── */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-family: 'Poppins', sans-serif;
}

.badge-pending { background: rgba(245,158,11,.15); color: var(--warning); border: 1px solid rgba(245,158,11,.25); }
.badge-signed { background: rgba(34,197,94,.15); color: var(--success); border: 1px solid rgba(34,197,94,.25); }
.badge-expired { background: rgba(239,68,68,.15); color: var(--danger); border: 1px solid rgba(239,68,68,.25); }
.badge-cancelled { background: rgba(136,153,170,.15); color: var(--muted); border: 1px solid rgba(136,153,170,.25); }

/* ── TABS ── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 20px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all .2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: 'Poppins', sans-serif;
}

.tab:hover { color: var(--accent); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ── PAGINATION ── */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: .82rem;
}

.pagination button {
  padding: 7px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  background: var(--glass-bg);
  color: var(--off-white);
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  font-size: .78rem;
  transition: all .2s;
}

.pagination button:hover { border-color: var(--accent); color: var(--accent); }
.pagination button:disabled { opacity: .3; cursor: not-allowed; }
.pagination .page-info { color: var(--muted); font-family: monospace; font-size: .78rem; }

/* ── MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2,6,11,.8);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
  background: rgba(10,42,78,.95);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  max-width: 700px;
  width: 95%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.5), var(--glow);
  backdrop-filter: blur(16px);
}

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

.modal-header h3 {
  font-family: 'Poppins', sans-serif;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
}

.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 12px; }

/* ── TOAST ── */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: 16px;
  font-size: .85rem;
  font-weight: 500;
  font-family: 'Poppins', sans-serif;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  animation: slideIn .3s ease;
  max-width: 400px;
  backdrop-filter: blur(8px);
}

.toast-success { background: rgba(34,197,94,.9); color: #fff; }
.toast-error { background: rgba(239,68,68,.9); color: #fff; }
.toast-info { background: rgba(10,42,78,.9); color: #fff; border: 1px solid var(--glass-border); }

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

/* ── SPINNER ── */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}

.spinner-dark {
  border-color: rgba(255,255,255,.1);
  border-top-color: var(--accent);
}

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

/* ── EMPTY STATE ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
}

.empty-state .icon { font-size: 3rem; opacity: .25; margin-bottom: 16px; }
.empty-state p { font-size: .9rem; }

/* ── CONTRACT BODY ── */
.contract-body {
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(234,239,244,.85);
}

.contract-body h3 {
  font-family: 'Poppins', sans-serif;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin: 28px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.contract-body p { margin-bottom: 10px; text-align: justify; }

.contract-body ul {
  list-style: none;
  padding-left: 16px;
  margin-bottom: 10px;
}

.contract-body ul li {
  padding: 3px 0 3px 20px;
  position: relative;
}

.contract-body ul li::before {
  content: '\25B8';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.contract-body .highlight-box {
  background: rgba(255,87,51,.08);
  border-left: 3px solid var(--accent);
  padding: 14px 18px;
  margin: 16px 0;
  border-radius: 0 12px 12px 0;
  font-size: .87rem;
}

.contract-body .danger-box {
  background: rgba(239,68,68,.08);
  border-left: 3px solid var(--danger);
  padding: 14px 18px;
  margin: 16px 0;
  border-radius: 0 12px 12px 0;
  font-size: .87rem;
  color: var(--danger);
  font-weight: 500;
}

/* ── CANVAS ── */
.canvas-wrap {
  border: 2px dashed var(--glass-border);
  border-radius: 16px;
  background: rgba(255,255,255,.03);
  position: relative;
  cursor: crosshair;
  transition: border-color .2s;
}

.canvas-wrap.active { border-color: var(--accent); box-shadow: 0 0 20px rgba(255,87,51,.1); }
.canvas-wrap.has-sig { border-style: solid; border-color: var(--success); }
.canvas-wrap.error { border-color: var(--danger); }

.canvas-wrap canvas { display: block; width: 100%; touch-action: none; }

.canvas-hint {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--muted);
  font-size: .78rem;
  pointer-events: none;
  transition: opacity .3s;
}

.canvas-hint .icon { font-size: 1.6rem; opacity: .3; }
.canvas-hint.hidden { opacity: 0; }

/* ── CERT FIELDS ── */
.cert-field { margin-bottom: 12px; }

.cert-label {
  font-size: .65rem;
  font-family: monospace;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 3px;
}

.cert-value {
  font-family: monospace;
  font-size: .78rem;
  color: var(--off-white);
  background: rgba(255,255,255,.05);
  padding: 8px 12px;
  border-radius: 10px;
  word-break: break-all;
  border: 1px solid var(--border-light);
}

/* ── AUDIT LOG ── */
.audit-timeline {
  border-left: 2px solid var(--border);
  padding-left: 20px;
  margin-top: 16px;
}

.audit-entry {
  position: relative;
  padding-bottom: 16px;
}

.audit-entry::before {
  content: '';
  position: absolute;
  left: -25px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--void-black);
  box-shadow: 0 0 8px rgba(255,87,51,.3);
}

.audit-entry .audit-action {
  font-weight: 600;
  font-size: .82rem;
  color: var(--off-white);
  font-family: 'Poppins', sans-serif;
}

.audit-entry .audit-meta {
  font-size: .72rem;
  color: var(--muted);
  font-family: monospace;
  margin-top: 2px;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,87,51,.25); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,87,51,.4); }

/* ── SELECTION ── */
::selection { background: rgba(255,87,51,.3); color: #fff; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  header { padding: 12px 14px; gap: 10px; }
  header h1 { font-size: .9rem; }
  header p { font-size: .6rem; }
  .header-seal { width: 36px; height: 36px; font-size: 15px; }
  .header-badge { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 16px 14px; border-radius: 14px; }
  .stat-card .stat-number { font-size: 1.6rem; }
  .stat-card .stat-label { font-size: .6rem; }
  .card { border-radius: 16px; }
  .card-header { padding: 16px 18px; }
  .card-body { padding: 16px 18px; }
  .btn { padding: 10px 18px; font-size: .8rem; }
  .field input, .field select, .field textarea { padding: 12px 14px; font-size: .88rem; }
  .field label { font-size: .68rem; }
  .tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab { padding: 10px 14px; font-size: .72rem; white-space: nowrap; }
  .modal { width: 98%; border-radius: 18px; }
  .modal-header { padding: 16px 18px; }
  .modal-body { padding: 18px; }
  .toast { max-width: 90vw; font-size: .8rem; padding: 10px 16px; }
  .toast-container { right: 10px; left: 10px; }
}