:root {
  --navy: #1A1F6E;
  --cyan: #00C2CB;
  --cyan-dark: #009BA3;
  --violet: #7B5CF5;
  --pink: #F0587A;
  --bg: #F4F5FB;
  --surface: #FFFFFF;
  --border: #E2E4F0;
  --text: #1A1F3C;
  --muted: #6B7094;
  --success: #0F6E56;
  --success-bg: #E1F5EE;
  --warning: #854F0B;
  --warning-bg: #FAEEDA;
  --danger: #A32D2D;
  --danger-bg: #FCEBEB;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(26,31,110,0.08);
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

/* ── SCREENS ─────────────────────────────── */
.screen { display: none; }
.screen.active { display: block; }

/* ── AUTH ────────────────────────────────── */
.auth-bg {
  min-height: 100vh;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.auth-bg::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,194,203,0.15) 0%, transparent 70%);
  top: -200px; right: -200px;
}
.auth-bg::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(123,92,245,0.12) 0%, transparent 70%);
  bottom: -100px; left: -100px;
}
.auth-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.auth-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.logo-mark {
  font-size: 28px;
  color: var(--cyan);
  line-height: 1;
}
.logo-title {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
}
.logo-sub {
  font-size: 12px;
  color: var(--muted);
}
.auth-tabs {
  display: flex;
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 24px;
}
.tab-btn {
  flex: 1;
  border: none;
  background: transparent;
  padding: 8px;
  border-radius: 6px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--muted);
  transition: all .2s;
}
.tab-btn.active {
  background: var(--surface);
  color: var(--navy);
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  transition: border-color .2s;
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--cyan);
}
.form-error {
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 12px;
  min-height: 18px;
}
.btn-primary {
  width: 100%;
  padding: 12px;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s, transform .1s;
}
.btn-primary:hover { background: #252b94; }
.btn-primary:active { transform: scale(.98); }

/* ── APP LAYOUT ──────────────────────────── */
#screen-app {
  display: flex;
  min-height: 100vh;
}
#sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--navy);
  display: flex;
  flex-direction: column;
  padding: 24px 0;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 8px;
}
.sidebar-logo .logo-title { color: #fff; font-size: 15px; }
.sidebar-logo .logo-sub { color: rgba(255,255,255,0.45); font-size: 11px; }
.nav-menu { list-style: none; flex: 1; padding: 8px 0; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all .15s;
  border-left: 3px solid transparent;
}
.nav-item svg {
  width: 16px; height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.nav-item:hover { color: #fff; background: rgba(255,255,255,0.06); }
.nav-item.active {
  color: var(--cyan);
  background: rgba(0,194,203,0.1);
  border-left-color: var(--cyan);
}
.sidebar-footer { padding: 16px 20px; }
.logout-btn {
  width: 100%;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.5);
  padding: 8px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
}
.logout-btn:hover { border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.8); }

#main-content {
  margin-left: 220px;
  flex: 1;
  padding: 32px;
  min-height: 100vh;
}
.page { display: none; }
.page.active { display: block; }

/* ── COMPONENTS ──────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.page-title {
  font-family: 'Syne', sans-serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--navy);
}
.page-title span {
  color: var(--cyan);
}
.page-sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.kpi-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.kpi-icon { font-size: 20px; margin-bottom: 10px; }
.kpi-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 500; }
.kpi-value { font-family: 'Syne', sans-serif; font-size: 26px; font-weight: 700; color: var(--navy); margin: 4px 0; }
.kpi-sub { font-size: 12px; color: var(--muted); }
.kpi-pos { color: var(--success); }
.kpi-neg { color: var(--danger); }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card-title {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Semáforo */
.semaforo { display: flex; gap: 8px; align-items: center; }
.sem { width: 12px; height: 12px; border-radius: 50%; opacity: .3; }
.sem.on { opacity: 1; }
.sem-verde { background: #1D9E75; }
.sem-amarillo { background: #EF9F27; }
.sem-rojo { background: #E24B4A; }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 500;
}
.badge-verde { background: var(--success-bg); color: var(--success); }
.badge-amarillo { background: var(--warning-bg); color: var(--warning); }
.badge-rojo { background: var(--danger-bg); color: var(--danger); }
.badge-cyan { background: rgba(0,194,203,0.12); color: var(--cyan-dark); }
.badge-navy { background: rgba(26,31,110,0.08); color: var(--navy); }

/* Table */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  padding: 8px 12px;
  border-bottom: 1.5px solid var(--border);
  background: var(--bg);
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(0,194,203,0.03); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .15s;
}
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: #252b94; }
.btn-cyan { background: var(--cyan); color: var(--navy); }
.btn-cyan:hover { background: var(--cyan-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); border: 1.5px solid var(--border); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #f7c1c1; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Checklist */
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.check-item:last-child { border-bottom: none; }
.check-item input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--cyan); }
.check-item label { font-size: 13px; color: var(--text); cursor: pointer; flex: 1; }
.check-item.done label { text-decoration: line-through; color: var(--muted); }

/* Section headers */
.section-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  padding: 4px 0;
  margin: 16px 0 8px;
  border-bottom: 1px solid var(--border);
}

/* Rutina day row */
.rutina-row {
  display: grid;
  grid-template-columns: 100px 100px 1fr 60px 80px 60px 60px 60px;
  gap: 8px;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: background .15s;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.rutina-row:hover { background: var(--bg); }
.rutina-row.header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  background: var(--bg);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.check-circle {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid var(--border);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
  font-size: 12px;
}
.check-circle.checked { background: var(--cyan); border-color: var(--cyan); color: var(--navy); }
.check-circle:hover { border-color: var(--cyan); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--surface);
  border-radius: 16px;
  padding: 28px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-title {
  font-family: 'Syne', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}
.modal-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--navy);
  color: #fff;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  transform: translateY(80px);
  opacity: 0;
  transition: all .3s;
  pointer-events: none;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* Form grid */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid.cols3 { grid-template-columns: 1fr 1fr 1fr; }
.form-full { grid-column: 1 / -1; }

/* Pilar status */
.pilares-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}
.pilar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
  box-shadow: var(--shadow);
}
.pilar-num {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: 8px;
}
.pilar-name {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 8px;
}
.pilar-freq { font-size: 11px; color: var(--muted); margin-bottom: 10px; }
.pilar-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); transition: transform .3s; }
  #sidebar.open { transform: translateX(0); }
  #main-content { margin-left: 0; padding: 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .pilares-grid { grid-template-columns: 1fr; }
  .rutina-row { grid-template-columns: 80px 80px 1fr 50px; }
}

/* Área de texto */
textarea.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  color: var(--text);
  resize: vertical;
  min-height: 80px;
}
textarea.form-control:focus { border-color: var(--cyan); outline: none; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--muted);
}
.empty-state .empty-icon { font-size: 36px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* Progress bar */
.progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 6px;
}
.progress-fill {
  height: 100%;
  background: var(--cyan);
  border-radius: 99px;
  transition: width .5s;
}