:root {
  --bg-dark:    #1A2744;
  --bg-mid:     #243352;
  --bg-card:    #1E2D4A;
  --bg-input:   #0F1A2E;
  --accent:     #1D9E75;
  --accent2:    #534AB7;
  --amber:      #EF9F27;
  --red:        #C0392B;
  --text:       #F0F4FF;
  --text-muted: rgba(240,244,255,0.55);
  --border:     rgba(255,255,255,0.08);
  --radius:     10px;
}

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

body {
  background: var(--bg-dark);
  color: var(--text);
  font-family: 'Segoe UI', Arial, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }

/* ─── LAYOUT ─────────────────────────────────────────────────────────────── */
.container { max-width: 1400px; margin: 0 auto; padding: 0 1.5rem; }

header {
  background: var(--bg-mid);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-logo { font-size: 1.3rem; font-weight: 800; letter-spacing: 2px; color: var(--accent); }
.header-tagline { font-size: 11px; color: var(--text-muted); margin-left: 0.5rem; }
.header-spacer { flex: 1; }
.header-info { font-size: 12px; color: var(--text-muted); }

main { padding: 1.5rem; }
.section { margin-bottom: 2rem; }
.section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

/* ─── CARDS ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.25s ease;
}
.card:hover { border-color: rgba(255,255,255,0.14); }
.card-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 0.35rem; }
.card-value { font-size: 1.75rem; font-weight: 700; line-height: 1.1; }
.card-sub { font-size: 11px; color: var(--text-muted); margin-top: 0.25rem; }
.card-delta { font-size: 12px; margin-top: 0.3rem; font-weight: 600; }
.card-delta.pos { color: var(--accent); }
.card-delta.neg { color: var(--red); }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }

.kpi-green  { border-left: 3px solid var(--accent); }
.kpi-red    { border-left: 3px solid var(--red); }
.kpi-purple { border-left: 3px solid var(--accent2); }
.kpi-amber  { border-left: 3px solid var(--amber); }
.kpi-navy   { border-left: 3px solid #3A6CC8; }

/* ─── BUTTONS ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 1rem; border-radius: 6px; border: none;
  font-size: 13px; font-weight: 600; cursor: pointer;
  transition: background 0.2s ease, opacity 0.2s;
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #178a65; }
.btn-secondary { background: var(--bg-mid); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #2d3f60; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #a93226; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 11px; }
.btn-icon { padding: 0.35rem 0.5rem; font-size: 14px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ─── BADGES ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block; padding: 2px 8px;
  border-radius: 20px; font-size: 11px; font-weight: 600;
}
.badge-admin  { background: rgba(83,74,183,0.25); color: #9b94e8; border: 1px solid rgba(83,74,183,0.4); }
.badge-viewer { background: rgba(29,158,117,0.2);  color: #5dd4a8; border: 1px solid rgba(29,158,117,0.35); }

/* ─── FORMS ─────────────────────────────────────────────────────────────── */
input, select, textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-size: 13px;
  width: 100%;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
input::placeholder { color: var(--text-muted); }
label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 0.3rem; }

.form-group { margin-bottom: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.form-row-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 1rem; }

/* ─── SLIDERS ────────────────────────────────────────────────────────────── */
input[type="range"] {
  background: transparent;
  padding: 0;
  border: none;
  accent-color: var(--accent);
  height: 4px;
  cursor: pointer;
}
input[type="range"]:disabled { accent-color: rgba(255,255,255,0.2); cursor: default; }

.slider-row {
  background: var(--bg-card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.slider-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.slider-label { font-size: 12px; font-weight: 600; }
.slider-value { font-size: 13px; font-weight: 700; color: var(--accent); }
.slider-impact { font-size: 11px; color: var(--text-muted); margin-top: 0.3rem; }
.slider-impact span { color: var(--amber); font-weight: 600; }
.slider-bar-bg { height: 4px; background: var(--border); border-radius: 2px; margin: 0.5rem 0; position: relative; }
.slider-bar-fill { height: 4px; background: var(--accent); border-radius: 2px; transition: width 0.2s; }

/* ─── TABLES ─────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
thead tr { background: var(--bg-mid); }
th {
  padding: 0.6rem 0.75rem; text-align: left;
  font-size: 10px; font-weight: 700; letter-spacing: 0.8px;
  text-transform: uppercase; color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  white-space: nowrap;
}
tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
tbody tr:hover { background: rgba(255,255,255,0.04); }
.td-pos { color: var(--accent); font-weight: 600; }
.td-neg { color: var(--red); font-weight: 600; }
.td-right { text-align: right; }
.td-center { text-align: center; }

/* ─── TABS ───────────────────────────────────────────────────────────────── */
.tab-nav { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.tab-btn {
  padding: 0.4rem 0.9rem; border-radius: 20px; font-size: 12px; font-weight: 600;
  border: 1px solid var(--border); background: transparent; color: var(--text-muted);
  cursor: pointer; transition: all 0.2s;
}
.tab-btn:hover { background: var(--bg-card); color: var(--text); }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ─── ACCORDION ──────────────────────────────────────────────────────────── */
.accordion { border: 0.5px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 0.75rem; }
.accordion-header {
  background: var(--bg-mid); padding: 0.85rem 1rem;
  cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; font-size: 13px;
  transition: background 0.2s;
  user-select: none;
}
.accordion-header:hover { background: #2d3f60; }
.accordion-header .chevron { transition: transform 0.25s; font-size: 10px; }
.accordion-header.open .chevron { transform: rotate(180deg); }
.accordion-body { background: var(--bg-card); padding: 1.25rem; display: none; }
.accordion-body.open { display: block; }

/* ─── WATERFALL ──────────────────────────────────────────────────────────── */
.waterfall-table td:first-child { font-weight: 600; }
.waterfall-bar { height: 8px; background: var(--accent); border-radius: 4px; min-width: 4px; transition: width 0.4s; }
.waterfall-bar.neg { background: var(--red); }
.wf-base { background: #3A6CC8; }
.wf-objetivo { background: var(--amber); }

/* ─── CHART CONTAINER ────────────────────────────────────────────────────── */
.chart-container { position: relative; height: 280px; }

/* ─── LOGIN PAGE ─────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-dark);
  padding: 1rem;
}
.login-card {
  background: var(--bg-mid);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%;
  max-width: 420px;
}
.login-logo {
  text-align: center; margin-bottom: 0.5rem;
  font-size: 2rem; font-weight: 800; letter-spacing: 4px; color: var(--accent);
}
.login-tagline { text-align: center; color: var(--text-muted); font-size: 12px; margin-bottom: 2rem; }
.input-pass-wrap { position: relative; }
.input-pass-wrap input { padding-right: 2.5rem; }
.pass-toggle {
  position: absolute; right: 0.7rem; top: 50%;
  transform: translateY(-50%); cursor: pointer;
  color: var(--text-muted); background: none; border: none; font-size: 15px;
  transition: color 0.2s;
}
.pass-toggle:hover { color: var(--text); }
.login-error { background: rgba(192,57,43,0.15); border: 1px solid rgba(192,57,43,0.3); border-radius: 6px; padding: 0.6rem 0.9rem; font-size: 12px; color: #e57373; margin-top: 0.75rem; display: none; }
.login-btn { width: 100%; padding: 0.75rem; font-size: 14px; margin-top: 1.25rem; border-radius: 8px; }

/* ─── EBITDA SUMMARY CARD ────────────────────────────────────────────────── */
.ebitda-highlight {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.5rem; text-align: center; margin-bottom: 1rem;
}
.ebitda-highlight.neg { border-color: var(--red); }
.ebitda-number { font-size: 2.5rem; font-weight: 800; color: var(--accent); }
.ebitda-number.neg { color: var(--red); }

/* ─── PROGRESS BAR ───────────────────────────────────────────────────────── */
.progress-wrap { height: 8px; background: rgba(255,255,255,0.07); border-radius: 4px; overflow: hidden; margin-top: 0.5rem; }
.progress-fill { height: 8px; background: var(--accent); border-radius: 4px; transition: width 0.4s ease; }
.progress-fill.over { background: var(--amber); }
.progress-fill.neg  { background: var(--red); }

/* ─── MODAL ─────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; display: none;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg-mid); border: 0.5px solid var(--border);
  border-radius: var(--radius); padding: 2rem; max-width: 420px; width: 100%;
}
.modal-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.75rem; }
.modal-body { color: var(--text-muted); font-size: 13px; margin-bottom: 1.5rem; }
.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; }

/* ─── SPINNER / REFRESH ──────────────────────────────────────────────────── */
.refresh-indicator {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-size: 10px; color: var(--text-muted);
}
.spinner {
  width: 10px; height: 10px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── ALERTS ─────────────────────────────────────────────────────────────── */
.alert { padding: 0.75rem 1rem; border-radius: 6px; font-size: 13px; margin-bottom: 1rem; }
.alert-success { background: rgba(29,158,117,0.15); border: 1px solid rgba(29,158,117,0.3); color: #5dd4a8; }
.alert-error   { background: rgba(192,57,43,0.15);  border: 1px solid rgba(192,57,43,0.3);  color: #e57373; }
.alert-info    { background: rgba(83,74,183,0.15);  border: 1px solid rgba(83,74,183,0.3);  color: #9b94e8; }

/* ─── PAYBACK CARDS ──────────────────────────────────────────────────────── */
.payback-card { text-align: center; }
.payback-years { font-size: 2.2rem; font-weight: 800; color: var(--amber); }
.payback-label { font-size: 10px; color: var(--text-muted); letter-spacing: 0.8px; text-transform: uppercase; }

/* ─── EMPTY STATE ────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 3rem 1rem;
  color: var(--text-muted); font-size: 13px;
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: 0.4; }

/* ─── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .form-row, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }
  header { flex-wrap: wrap; gap: 0.5rem; }
  .card-value { font-size: 1.4rem; }
}