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

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg:           #0f0f1a;
  --surface:      #1a1a2e;
  --surface2:     #22223a;
  --border:       rgba(255,255,255,.08);
  --border-hover: rgba(255,255,255,.15);
  --text:         #e8e8f0;
  --text-muted:   #7b7b9d;
  --accent-from:  #6c63ff;
  --accent-to:    #4ecdc4;
  --accent:       #6c63ff;
  --green:        #00d4aa;
  --yellow:       #f5c842;
  --red:          #ff5370;
  --gray:         #6b7280;
  --radius:       10px;
  --radius-lg:    14px;
  --shadow:       0 8px 32px rgba(0,0,0,.55);
  --shadow-sm:    0 2px 12px rgba(0,0,0,.35);
  --gradient:     linear-gradient(135deg, var(--accent-from), var(--accent-to));
  --transition:   0.2s ease;
}

html, body {
  height: 100%;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: .8; }

/* ── Layout helpers ──────────────────────────────────────────── */
.page        { min-height: 100vh; display: flex; flex-direction: column; }
.container   { max-width: 1140px; margin: 0 auto; padding: 0 24px; width: 100%; }
.flex        { display: flex; align-items: center; }
.gap-8       { gap: 8px; }
.gap-12      { gap: 12px; }
.ml-auto     { margin-left: auto; }
.mt-8        { margin-top: 8px; }
.mt-16       { margin-top: 16px; }
.mt-24       { margin-top: 24px; }

/* ── Topbar ──────────────────────────────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(26,26,46,.92);
}

.topbar-logo {
  font-size: 18px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: .01em;
}

.topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .01em;
}

/* ── Banner (DRY RUN warning) ────────────────────────────────── */
.banner {
  background: rgba(245,200,66,.08);
  color: var(--yellow);
  border-bottom: 1px solid rgba(245,200,66,.2);
  padding: 9px 24px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  letter-spacing: .02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  user-select: none;
  letter-spacing: .01em;
}
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none !important; }
.btn:not(:disabled):active { transform: scale(.97); }

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 16px rgba(108,99,255,.35);
}
.btn-primary:hover:not(:disabled) {
  opacity: .9;
  box-shadow: 0 6px 20px rgba(108,99,255,.5);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--border-hover);
}

.btn-danger {
  background: rgba(255,83,112,.15);
  color: var(--red);
  border: 1px solid rgba(255,83,112,.25);
}
.btn-danger:hover:not(:disabled) {
  background: rgba(255,83,112,.25);
  border-color: rgba(255,83,112,.45);
}

.btn-success {
  background: rgba(0,212,170,.15);
  color: var(--green);
  border: 1px solid rgba(0,212,170,.25);
}
.btn-success:hover:not(:disabled) {
  background: rgba(0,212,170,.25);
  border-color: rgba(0,212,170,.45);
}

.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 8px; }

/* ── Card ────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-hover); }

.card-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

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

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

th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  background: rgba(255,255,255,.02);
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
  vertical-align: middle;
  transition: background var(--transition);
}

tbody tr:last-child td { border-bottom: none; }

tbody tr:hover td { background: rgba(108,99,255,.06); }

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.badge-green  { background: rgba(0,212,170,.12);  color: var(--green); border: 1px solid rgba(0,212,170,.2); }
.badge-yellow { background: rgba(245,200,66,.12);  color: var(--yellow); border: 1px solid rgba(245,200,66,.2); }
.badge-red    { background: rgba(255,83,112,.12);  color: var(--red); border: 1px solid rgba(255,83,112,.2); }
.badge-gray   { background: rgba(107,114,128,.12); color: var(--gray); border: 1px solid rgba(107,114,128,.2); }

/* ── Form elements ───────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .02em;
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 9px 13px;
  font-size: 13px;
  width: 100%;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

input::placeholder { color: var(--text-muted); opacity: .6; }

input:focus, select:focus {
  border-color: var(--accent-from);
  box-shadow: 0 0 0 3px rgba(108,99,255,.15);
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent-from);
}

select option { background: var(--surface); color: var(--text); }

/* ── Login page ──────────────────────────────────────────────── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: var(--bg);
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-logo {
  font-size: 24px;
  font-weight: 800;
  text-align: center;
  margin-bottom: 28px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-form { display: flex; flex-direction: column; gap: 14px; }

.error-msg {
  color: var(--red);
  font-size: 13px;
  text-align: center;
  min-height: 18px;
  background: rgba(255,83,112,.08);
  border-radius: var(--radius);
  padding: 6px 10px;
  display: none;
}
.error-msg:not(:empty) { display: block; }

/* ── Modal ───────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .15s ease;
}
.modal-backdrop.open { display: flex; }

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

.modal {
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  width: 100%;
  max-width: 560px;
  box-shadow: var(--shadow);
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp .18s ease;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.modal-close:hover { color: var(--text); background: var(--surface2); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

/* ── Hedge card ──────────────────────────────────────────────── */
.hedge-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 22px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.hedge-field-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.hedge-field-value { font-size: 15px; font-weight: 600; }

/* ── Params grid ─────────────────────────────────────────────── */
.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.param-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
}

.param-value { font-size: 16px; font-weight: 700; margin-top: 3px; }

/* ── PnL colour ──────────────────────────────────────────────── */
.pnl-pos  { color: var(--green); }
.pnl-neg  { color: var(--red); }
.pnl-zero { color: var(--text-muted); }

/* ── Section title ───────────────────────────────────────────── */
.section-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

/* ── Misc ────────────────────────────────────────────────────── */
.no-data {
  color: var(--text-muted);
  font-size: 13px;
  padding: 24px;
  text-align: center;
}

.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-from);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Divider ─────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface2); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  .form-row        { grid-template-columns: 1fr; }
  .params-grid     { grid-template-columns: 1fr 1fr; }
  .modal           { padding: 20px 16px 18px; }
  .topbar          { padding: 0 16px; }
  .container       { padding: 0 16px; }
  .hedge-card      { grid-template-columns: 1fr 1fr; }
}