:root {
  --bg: #0f172a;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --line: #dbe3ee;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #0ea5e9;
  --primary-dark: #0284c7;
  --success: #dcfce7;
  --success-text: #166534;
  --error: #fee2e2;
  --error-text: #991b1b;
  --warning: #fff7ed;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #e2e8f0, #f8fafc);
  color: var(--text);
}

a { color: var(--primary-dark); text-decoration: none; }

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 280px;
  background: var(--bg);
  color: white;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand h1 {
  margin: 0;
  font-size: 1.35rem;
}

.brand p {
  margin: 2px 0 0;
  color: #cbd5e1;
  font-size: .92rem;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), #38bdf8);
  display: grid;
  place-items: center;
  font-weight: 700;
}

.nav { display: grid; gap: 10px; }
.nav-link {
  color: #e2e8f0;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(255,255,255,.04);
}
.nav-link:hover { background: rgba(255,255,255,.09); }
.nav-link.danger { color: #fecaca; }

.user-box {
  margin-top: auto;
  padding: 16px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px;
  background: rgba(255,255,255,.04);
}
.user-box strong, .user-box span { display: block; }
.user-box span { color: #cbd5e1; margin-top: 6px; }

.main {
  flex: 1;
  padding: 34px;
}

.main-auth {
  display: grid;
  place-items: center;
  padding: 40px 20px;
}

.auth-card {
  width: min(940px, 100%);
  display: grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 24px;
  align-items: stretch;
}

.hero-copy, .form-card, .panel, .stat-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 36px;
  background: linear-gradient(145deg, #0f172a, #1e293b);
  color: white;
}
.hero-copy p { color: #cbd5e1; max-width: 46ch; }
.hero-copy h2 { margin: 10px 0; font-size: 2rem; }

.eyebrow {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(14,165,233,.12);
  color: var(--primary-dark);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.hero-copy .eyebrow { background: rgba(255,255,255,.1); color: #bae6fd; }

.page-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: start;
  margin-bottom: 24px;
}
.page-head h2 { margin: 10px 0 6px; font-size: 2rem; }
.page-head p { margin: 0; color: var(--muted); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.stat-card {
  padding: 22px;
}
.stat-card span { display: block; color: var(--muted); margin-bottom: 10px; }
.stat-card strong { font-size: 2rem; }

.panel, .form-card {
  padding: 24px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.compact-form { max-width: 520px; }
.compact-form h3 { margin-top: 0; }
label {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  color: #1e293b;
  font-weight: 600;
}
input, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 1rem;
  background: white;
}
input:focus, select:focus {
  outline: 3px solid rgba(14,165,233,.16);
  border-color: var(--primary);
}
input:disabled, select:disabled { background: #f1f5f9; color: var(--muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  font-weight: 700;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #e2e8f0; color: #0f172a; }
.btn-small { padding: 8px 12px; background: #e0f2fe; }
.link-btn {
  border: none;
  background: transparent;
  color: var(--primary-dark);
  cursor: pointer;
  font-weight: 700;
}

.flash-stack { display: grid; gap: 12px; margin-bottom: 18px; }
.flash {
  padding: 14px 16px;
  border-radius: 16px;
  font-weight: 700;
}
.flash-success { background: var(--success); color: var(--success-text); }
.flash-error { background: var(--error); color: var(--error-text); }
.flash-warning { background: var(--warning); color: #9a3412; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: .95rem;
}
th { color: var(--muted); font-size: .88rem; text-transform: uppercase; letter-spacing: .03em; }

.empty-state {
  padding: 20px;
  border-radius: 18px;
  background: var(--panel-soft);
  color: var(--muted);
}

.two-col {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
}

.grid-2, .grid-3 {
  display: grid;
  gap: 16px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.movement-form { display: grid; gap: 20px; }
.movement-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.helper, .hint-box { color: var(--muted); font-size: .92rem; }
.hint-box {
  background: var(--panel-soft);
  border: 1px dashed var(--line);
  border-radius: 16px;
  padding: 14px;
  align-self: end;
}
.movement-row {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  background: linear-gradient(180deg, #fff, #f8fafc);
}
.movement-row.is-hidden { display: none; }
.row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.row-head h3 { margin: 0; }
.form-footer { display: flex; justify-content: flex-end; }

@media (max-width: 1100px) {
  .auth-card, .two-col, .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; }
  .page-head, .movement-actions { flex-direction: column; align-items: stretch; }
}


.lot-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  background: linear-gradient(180deg, #fff, #f8fafc);
}
.checkbox-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 8px 0 0;
  font-weight: 600;
}
.checkbox-line input {
  width: 18px;
  height: 18px;
  margin: 0;
}
.compact-hint { align-self: stretch; }
.causa-wrap.is-hidden { display: none; }
.locked-field {
  background: #f8fafc;
  color: #334155;
}

.hidden-form {
  display: none;
}

.inline-form {
  display: inline;
  margin: 0;
}

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

.danger-btn {
  background: #fee2e2;
  color: var(--error-text);
}

.table-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  font-size: 0.95rem;
  background: white;
}

/* Ajustes puntuales para opciones de descarga en historial */
.history-download-form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.history-download-select {
  min-width: 84px;
  width: auto;
  padding: 8px 10px;
}

.history-download-check {
  margin: 0;
  white-space: nowrap;
  font-weight: 600;
}