/* DS Finance Manager — Styles v4 */
:root {
  --dsf-bg:       #f0f4f8;
  --dsf-surface:  #ffffff;
  --dsf-surface2: #f8fafc;
  --dsf-surface3: #f1f5f9;
  --dsf-border:   #e2e8f0;
  --dsf-border2:  #cbd5e1;
  --dsf-text:     #1e293b;
  --dsf-muted:    #64748b;
  --dsf-accent:   #4f46e5;
  --dsf-accent2:  #6366f1;
  --dsf-green:    #10b981;
  --dsf-red:      #ef4444;
  --dsf-yellow:   #f59e0b;
  --dsf-radius:   12px;
  --dsf-radius-sm:8px;
  --dsf-shadow:   0 1px 3px rgba(0,0,0,.07), 0 4px 12px rgba(0,0,0,.05);
  --dsf-shadow-md:0 8px 32px rgba(0,0,0,.14);
  --dsf-header-h: 64px;
}

/* ── Reset mínimo: solo box-sizing y elementos semánticos ─── */
#dsf-app * { box-sizing: border-box; }
#dsf-app p, #dsf-app ul, #dsf-app ol, #dsf-app li,
#dsf-app h1, #dsf-app h2, #dsf-app h3, #dsf-app h4 {
  margin: 0; padding: 0;
}
#dsf-app ul, #dsf-app ol { list-style: none; }

/* ── Full-screen App ───────────────────────────────────────── */
#dsf-app {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--dsf-bg);
  color: var(--dsf-text);
  font-size: 14px;
  line-height: 1.5;
  overflow: hidden;
}

/* ── Header ────────────────────────────────────────────────── */
.dsf-header {
  height: var(--dsf-header-h);
  min-height: var(--dsf-header-h);
  flex-shrink: 0;
  background: var(--dsf-surface);
  border-bottom: 1px solid var(--dsf-border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  box-shadow: 0 1px 0 var(--dsf-border);
}

.dsf-header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dsf-accent);
  font-weight: 700;
  font-size: 16px;
  white-space: nowrap;
  margin-right: 32px;
  padding-right: 32px;
  border-right: 1px solid var(--dsf-border2);
}

.dsf-tabs {
  display: flex;
  height: 100%;
}

.dsf-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 22px;
  height: 100%;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--dsf-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: color .15s, border-color .15s;
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.dsf-tab svg { opacity: .6; transition: opacity .15s; }
.dsf-tab:hover { color: var(--dsf-text); }
.dsf-tab:hover svg { opacity: 1; }
.dsf-tab.active {
  color: var(--dsf-accent);
  border-bottom-color: var(--dsf-accent);
  font-weight: 600;
}
.dsf-tab.active svg { opacity: 1; }

/* ── Content Scroll ────────────────────────────────────────── */
#dsf-content {
  flex: 1;
  overflow-y: auto;
  padding: 44px 52px;
  background: var(--dsf-bg);
  scrollbar-width: thin;
  scrollbar-color: var(--dsf-border2) transparent;
}
#dsf-content::-webkit-scrollbar { width: 6px; }
#dsf-content::-webkit-scrollbar-track { background: transparent; }
#dsf-content::-webkit-scrollbar-thumb { background: var(--dsf-border2); border-radius: 3px; }

/* ── Loading ───────────────────────────────────────────────── */
.dsf-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 80px 0;
}
.dsf-loading span {
  width: 36px;
  height: 36px;
  border: 3px solid var(--dsf-border2);
  border-top-color: var(--dsf-accent);
  border-radius: 50%;
  animation: dsf-spin .7s linear infinite;
}
@keyframes dsf-spin { to { transform: rotate(360deg); } }

/* ── Section Header ────────────────────────────────────────── */
.dsf-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}
.dsf-section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--dsf-text);
  letter-spacing: -.025em;
  line-height: 1.2;
}
.dsf-section-sub {
  font-size: 13px;
  color: var(--dsf-muted);
  margin-top: 5px;
}

/* ── Stats Grid ────────────────────────────────────────────── */
.dsf-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.dsf-stat {
  background: var(--dsf-surface);
  border: 1px solid var(--dsf-border);
  border-radius: var(--dsf-radius);
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--dsf-shadow);
}
.dsf-stat::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: var(--dsf-radius) var(--dsf-radius) 0 0;
}
.dsf-stat.c-blue::after  { background: linear-gradient(90deg,#4f46e5,#818cf8); }
.dsf-stat.c-red::after   { background: linear-gradient(90deg,#ef4444,#f87171); }
.dsf-stat.c-green::after { background: linear-gradient(90deg,#10b981,#34d399); }
.dsf-stat.c-gray::after  { background: linear-gradient(90deg,#94a3b8,#cbd5e1); }

.dsf-stat-label {
  font-size: 11px;
  color: var(--dsf-muted);
  text-transform: uppercase;
  letter-spacing: .09em;
  font-weight: 600;
}
.dsf-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--dsf-text);
  letter-spacing: -.02em;
  line-height: 1;
}
.dsf-stat-value.blue  { color: var(--dsf-accent); }
.dsf-stat-value.red   { color: var(--dsf-red); }
.dsf-stat-value.green { color: var(--dsf-green); }
.dsf-stat-sub { font-size: 12px; color: var(--dsf-muted); }

/* ── Cards ─────────────────────────────────────────────────── */
.dsf-card {
  background: var(--dsf-surface);
  border: 1px solid var(--dsf-border);
  border-radius: var(--dsf-radius);
  overflow: hidden;
  box-shadow: var(--dsf-shadow);
}
.dsf-card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--dsf-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--dsf-surface2);
}
.dsf-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--dsf-text);
}

/* ── Filters ───────────────────────────────────────────────── */
.dsf-filters {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
  background: var(--dsf-surface);
  border: 1px solid var(--dsf-border);
  border-radius: var(--dsf-radius);
  padding: 28px 28px 24px;
  box-shadow: var(--dsf-shadow);
}

.dsf-filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}

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

.dsf-filter-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dsf-filter-group label {
  font-size: 11px;
  color: var(--dsf-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  display: block;
}

/* ── Inputs ────────────────────────────────────────────────── */
.dsf-input,
.dsf-select {
  display: block;
  width: 100%;
  background: var(--dsf-surface2);
  border: 1px solid var(--dsf-border2);
  border-radius: var(--dsf-radius-sm);
  color: var(--dsf-text);
  font-size: 13px;
  padding: 11px 14px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}
.dsf-input:focus,
.dsf-select:focus {
  border-color: var(--dsf-accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
  background: var(--dsf-surface);
}
.dsf-input::placeholder { color: #a0aec0; }
.dsf-select { appearance: auto; -webkit-appearance: auto; }

/* ── Input con prefijo (flex, sin position absolute) ─────── */
.dsf-input-prefix {
  display: flex;
  align-items: center;
  background: var(--dsf-surface2);
  border: 1px solid var(--dsf-border2);
  border-radius: var(--dsf-radius-sm);
  overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.dsf-input-prefix:focus-within {
  border-color: var(--dsf-accent);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
  background: var(--dsf-surface);
}
.dsf-input-prefix .prefix {
  padding: 0 6px 0 14px;
  color: var(--dsf-muted);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
  user-select: none;
}
.dsf-input-prefix .dsf-input {
  flex: 1;
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  background: transparent !important;
  padding-left: 4px;
  min-width: 0;
}
.dsf-input-prefix .dsf-input:focus {
  border: none !important;
  box-shadow: none !important;
}

/* ── Buttons ───────────────────────────────────────────────── */
.dsf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 20px;
  margin: 0;
  border: 1px solid transparent;
  border-radius: var(--dsf-radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .15s, transform .1s, box-shadow .15s;
  font-family: inherit;
  line-height: 1.4;
  text-decoration: none;
  -webkit-appearance: none;
  appearance: none;
}
.dsf-btn:hover  { opacity: .88; }
.dsf-btn:active { transform: scale(.97); }

.dsf-btn-primary {
  background: var(--dsf-accent) !important;
  color: #fff !important;
  border-color: var(--dsf-accent) !important;
  box-shadow: 0 2px 8px rgba(79,70,229,.3);
}
.dsf-btn-primary:hover { box-shadow: 0 4px 16px rgba(79,70,229,.4); opacity: 1; }

.dsf-btn-success {
  background: var(--dsf-green) !important;
  color: #fff !important;
  border-color: var(--dsf-green) !important;
  box-shadow: 0 2px 8px rgba(16,185,129,.25);
}

.dsf-btn-danger {
  background: transparent !important;
  color: var(--dsf-red) !important;
  border-color: rgba(239,68,68,.3) !important;
}
.dsf-btn-danger:hover {
  background: rgba(239,68,68,.08) !important;
  opacity: 1;
}

.dsf-btn-ghost {
  background: var(--dsf-surface2) !important;
  color: var(--dsf-text) !important;
  border-color: var(--dsf-border2) !important;
}
.dsf-btn-ghost:hover { background: var(--dsf-surface3) !important; opacity: 1; }

.dsf-btn-sm { padding: 6px 14px; font-size: 12px; gap: 5px; }

/* ── Table ─────────────────────────────────────────────────── */
.dsf-table-wrap {
  overflow-x: auto;
  border-radius: var(--dsf-radius);
  border: 1px solid var(--dsf-border);
  background: var(--dsf-surface);
  box-shadow: var(--dsf-shadow);
}
.dsf-table {
  width: 100%;
  border-collapse: collapse;
}
.dsf-table th {
  background: var(--dsf-surface2);
  color: var(--dsf-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 14px 20px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--dsf-border);
}
.dsf-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--dsf-border);
  color: var(--dsf-text);
  font-size: 13px;
  vertical-align: middle;
}
.dsf-table tr:last-child td { border-bottom: none; }
.dsf-table tbody tr { transition: background .1s; }
.dsf-table tbody tr:hover { background: rgba(79,70,229,.04); }

.dsf-table .num   { text-align: right; font-variant-numeric: tabular-nums; font-weight: 500; }
.dsf-table .muted { color: var(--dsf-muted); font-size: 12px; }
.dsf-table .green { color: var(--dsf-green); font-weight: 600; }
.dsf-table .red   { color: var(--dsf-red); font-weight: 500; }
.dsf-table .blue  { color: var(--dsf-accent); font-weight: 600; }

.dsf-table tfoot td {
  background: var(--dsf-surface2);
  border-top: 2px solid var(--dsf-border2);
  font-weight: 700;
  padding: 14px 20px;
  color: var(--dsf-text);
}

.dsf-actions { display: flex; gap: 6px; align-items: center; }

.dsf-empty {
  text-align: center;
  padding: 64px 32px;
  color: var(--dsf-muted);
  font-size: 14px;
}
.dsf-empty-icon { font-size: 36px; display: block; margin-bottom: 12px; opacity: .5; }

/* ── Badge ─────────────────────────────────────────────────── */
.dsf-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.dsf-badge-blue   { background: rgba(79,70,229,.1);  color: var(--dsf-accent); border: 1px solid rgba(79,70,229,.2); }
.dsf-badge-green  { background: rgba(16,185,129,.1); color: var(--dsf-green);  border: 1px solid rgba(16,185,129,.2); }
.dsf-badge-yellow { background: rgba(245,158,11,.1); color: var(--dsf-yellow); border: 1px solid rgba(245,158,11,.2); }

/* ── Modal ─────────────────────────────────────────────────── */
.dsf-modal {
  position: fixed;
  inset: 0;
  z-index: 9999999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.dsf-modal.hidden { display: none; }

.dsf-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,.5);
  backdrop-filter: blur(4px);
}
.dsf-modal-box {
  position: relative;
  z-index: 1;
  background: var(--dsf-surface);
  border: 1px solid var(--dsf-border);
  border-radius: 16px;
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  overflow-y: auto;
  box-shadow: var(--dsf-shadow-md);
  animation: dsf-pop .22s cubic-bezier(.16,1,.3,1);
}
@keyframes dsf-pop {
  from { transform: scale(.94) translateY(10px); opacity: 0; }
  to   { transform: scale(1)   translateY(0);    opacity: 1; }
}

.dsf-modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--dsf-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  background: var(--dsf-surface);
  z-index: 1;
}
.dsf-modal-header h3 { font-size: 17px; font-weight: 700; color: var(--dsf-text); }

.dsf-modal-close {
  background: var(--dsf-surface2) !important;
  border: 1px solid var(--dsf-border2) !important;
  color: var(--dsf-muted) !important;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color .15s, background .15s;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
  margin: 0;
}
.dsf-modal-close:hover { color: var(--dsf-text) !important; background: var(--dsf-surface3) !important; }

.dsf-modal-body { padding: 28px; }
.dsf-modal-footer {
  padding: 16px 28px 24px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  border-top: 1px solid var(--dsf-border);
  position: sticky;
  bottom: 0;
  background: var(--dsf-surface);
}

/* ── Form ──────────────────────────────────────────────────── */
.dsf-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.dsf-form-grid .full { grid-column: 1 / -1; }

.dsf-form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dsf-form-group label {
  font-size: 11px;
  color: var(--dsf-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  display: block;
}

/* ── Chart ─────────────────────────────────────────────────── */
.dsf-chart-area { padding: 24px; }
.dsf-chart-wrap { position: relative; width: 100%; min-height: 240px; }
.dsf-chart-wrap canvas { width: 100% !important; display: block; }

/* ── Calculadora ───────────────────────────────────────────── */
.dsf-calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
.dsf-calc-card-body { padding: 28px; }

.dsf-calc-result {
  background: var(--dsf-surface);
  border: 1px solid var(--dsf-border);
  border-radius: var(--dsf-radius);
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: var(--dsf-shadow);
}
.dsf-calc-result-head {
  padding: 14px 22px;
  border-bottom: 1px solid var(--dsf-border);
  font-size: 11px;
  color: var(--dsf-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  background: var(--dsf-surface2);
}
.dsf-calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--dsf-border);
}
.dsf-calc-row:last-child { border-bottom: none; }
.dsf-calc-row .label { color: var(--dsf-muted); font-size: 13px; }
.dsf-calc-row .value { font-size: 17px; font-weight: 700; color: var(--dsf-text); }
.dsf-calc-row.total { background: rgba(79,70,229,.04); }
.dsf-calc-row.total .label { color: var(--dsf-text); font-weight: 600; font-size: 14px; }
.dsf-calc-row.total .value { color: var(--dsf-green); font-size: 26px; }

/* ── mb utils ──────────────────────────────────────────────── */
.dsf-mb    { margin-bottom: 24px; }
.dsf-mb-lg { margin-bottom: 32px; }

/* ── Toast ─────────────────────────────────────────────────── */
.dsf-toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 99999999;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0,0,0,.15);
  animation: dsf-toast-in .25s cubic-bezier(.16,1,.3,1);
  max-width: 320px;
}
.dsf-toast.hidden { display: none; }
.dsf-toast.success { background: var(--dsf-green); color: #fff; }
.dsf-toast.error   { background: var(--dsf-red);   color: #fff; }
@keyframes dsf-toast-in {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Login ─────────────────────────────────────────────────── */
.dsf-login-msg { padding: 48px; text-align: center; color: var(--dsf-muted); }
.dsf-login-msg a { color: var(--dsf-accent); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .dsf-calc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .dsf-header { padding: 0 16px; height: auto; flex-wrap: wrap; }
  .dsf-header-brand { padding: 14px 0; border-right: none; margin-right: 0; width: 100%; }
  .dsf-tabs { width: 100%; border-top: 1px solid var(--dsf-border); overflow-x: auto; }
  .dsf-tab  { padding: 0 14px; height: 46px; font-size: 12px; flex: 1; justify-content: center; }
  #dsf-content { padding: 20px 16px; }
  .dsf-form-grid { grid-template-columns: 1fr; }
  .dsf-stats { grid-template-columns: 1fr 1fr; }
  .dsf-filters-grid { grid-template-columns: 1fr 1fr; }
  .dsf-section-head { flex-direction: column; }
}
@media (max-width: 480px) {
  .dsf-stats { grid-template-columns: 1fr; }
  .dsf-filters-grid { grid-template-columns: 1fr; }
  #dsf-content { padding: 14px 12px; }
  .dsf-section-title { font-size: 18px; }
}