/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:            #F4F0FE;
  --surface:       #FFFFFF;
  --surface2:      #FAF8FF;
  --border:        #DDD6FE;
  --border-soft:   #EDE9FE;

  --primary:       #7C3AED;
  --primary-dark:  #6D28D9;
  --primary-light: #EDE9FE;
  --primary-xlight:#F5F3FF;
  --accent:        #A78BFA;

  --success:       #059669;
  --success-bg:    #D1FAE5;
  --danger:        #DC2626;
  --danger-bg:     #FEE2E2;
  --warning:       #D97706;
  --warning-bg:    #FEF3C7;

  --text:          #1E1B4B;
  --text-muted:    #6B6B9A;
  --text-light:    #A5A5C8;

  --radius:        12px;
  --radius-sm:     8px;
  --shadow:        0 1px 4px rgba(109,40,217,0.08), 0 4px 16px rgba(109,40,217,0.06);
  --shadow-md:     0 4px 24px rgba(109,40,217,0.15);
}

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

/* ===== LOGIN ===== */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2E1065 0%, #4C1D95 40%, #7C3AED 100%);
  padding: 1rem;
}

.login-card {
  background: #fff;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  text-align: center;
}

.login-logo {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, #7C3AED, #9333EA);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  color: #fff;
  box-shadow: 0 4px 20px rgba(124,58,237,0.4);
}

.login-card h1 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 0.3rem;
}

.login-sub {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 1.75rem;
}

.login-card form { text-align: left; }

.login-error {
  background: var(--danger-bg);
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.85rem;
  font-size: 0.83rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  text-align: center;
}

.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 2.5rem; }
.pw-eye {
  position: absolute;
  right: 0.6rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.5;
  padding: 0.2rem;
}
.pw-eye:hover { opacity: 1; }

/* ===== HEADER ===== */
header {
  background: linear-gradient(135deg, #4C1D95 0%, #7C3AED 60%, #9333EA 100%);
  color: #fff;
  box-shadow: 0 2px 20px rgba(109,40,217,0.4);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 60px;
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
}

nav { display: flex; gap: 0.2rem; flex: 1; }

.tab-btn {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.82);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}
.tab-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }
.tab-btn.active { background: #fff; color: var(--primary); font-weight: 700; box-shadow: 0 2px 10px rgba(0,0,0,0.15); }

.header-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

#user-email-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.7);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.save-indicator {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: 20px;
  white-space: nowrap;
  transition: opacity 0.4s;
}
.save-indicator.saving {
  background: rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.75);
}
.save-indicator.saved {
  background: rgba(134,239,172,0.25);
  color: #86EFAC;
}
.save-indicator.save-error {
  background: rgba(252,165,165,0.25);
  color: #FCA5A5;
}

.btn-logout-header {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.5);
  font-weight: 600;
}
.btn-logout-header:hover {
  background: rgba(255,255,255,0.28);
  color: #fff;
  border-color: rgba(255,255,255,0.8);
}

/* ===== MAIN ===== */
main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.tab-section { display: none; }
.tab-section.active { display: block; }

/* ===== SECTION HEADER ===== */
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.section-header h2 { font-size: 1.4rem; font-weight: 800; letter-spacing: -0.03em; }
.section-desc { font-size: 0.83rem; color: var(--text-muted); margin-top: 0.2rem; }

.date-selector {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  color: var(--text-muted);
  box-shadow: var(--shadow);
}
.date-selector input[type="date"] {
  border: none; outline: none; font-size: 0.88rem; font-weight: 600;
  background: transparent; color: var(--text); cursor: pointer;
}

.month-selector { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.month-selector select {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.88rem;
  background: var(--surface);
  color: var(--text);
  outline: none;
  cursor: pointer;
}
.month-selector select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }

/* ===== CARD ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}
.form-card { margin-bottom: 1.5rem; }
.form-card h3 {
  font-size: 1rem; font-weight: 700; margin-bottom: 1.25rem;
  padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-soft);
}

/* ===== FORM ===== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.field-wide { grid-column: span 2; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label {
  font-size: 0.73rem; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.field-hint { font-size: 0.72rem; color: var(--text-light); }
.field input, .field select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  background: var(--surface);
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
  width: 100%;
}
.field input:focus, .field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}
.field-qty-unit .qty-unit-row { display: grid; grid-template-columns: 1fr auto; gap: 0.5rem; }
.field-qty-unit .qty-unit-row select { width: auto; min-width: 90px; }

.costo-preview {
  display: flex; align-items: center; gap: 0.4rem;
  background: var(--success-bg); color: var(--success);
  border-radius: var(--radius-sm); padding: 0.5rem 0.85rem;
  font-size: 0.85rem; font-weight: 600; margin-bottom: 1.25rem;
}

/* ===== BOTONES ===== */
.form-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.btn {
  border: none; border-radius: 999px; padding: 0.55rem 1.25rem;
  font-size: 0.84rem; font-weight: 700; cursor: pointer;
  transition: all 0.15s; display: inline-flex; align-items: center; gap: 0.35rem;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(124,58,237,0.3); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 14px rgba(124,58,237,0.4); transform: translateY(-1px); }
.btn-secondary { background: var(--primary-light); color: var(--primary); border: 1px solid var(--border); }
.btn-secondary:hover { background: #DDD6FE; }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1.5px solid var(--border); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #B91C1C; }
.btn-sm { padding: 0.3rem 0.85rem; font-size: 0.78rem; }
.btn-icon { padding: 0.3rem 0.55rem; }
.btn-full { width: 100%; justify-content: center; padding: 0.7rem; font-size: 0.9rem; }

/* ===== TABLA ===== */
.table-wrapper {
  overflow-x: auto; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.72rem 1.1rem; text-align: left; }
th {
  background: var(--primary-xlight); font-size: 0.72rem; font-weight: 800;
  color: var(--primary); text-transform: uppercase; letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
}
td { border-bottom: 1px solid var(--border-soft); font-size: 0.88rem; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--primary-xlight); }
.empty-msg { text-align: center; color: var(--text-muted); font-size: 0.85rem; padding: 2.5rem 1rem !important; }
.unit-badge {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  border-radius: 999px; padding: 0.15rem 0.6rem; font-size: 0.75rem; font-weight: 700;
}

/* ===== PRODUCTOS GRID ===== */
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.product-card {
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 1.3rem; box-shadow: var(--shadow);
  display: flex; flex-direction: column; transition: box-shadow 0.2s, transform 0.2s;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.product-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.3rem; }
.product-card-name { font-size: 1rem; font-weight: 800; }
.product-card-price { font-size: 1.05rem; font-weight: 800; color: var(--primary); }
.product-card-rinde { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.9rem; }
.rentabilidad-box {
  background: var(--surface2); border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm); padding: 0.85rem 1rem; margin-bottom: 0.9rem;
}
.rent-row { display: flex; justify-content: space-between; font-size: 0.82rem; padding: 0.18rem 0; color: var(--text-muted); }
.rent-row span:last-child { font-weight: 600; color: var(--text); }
.rent-divider { border: none; border-top: 1px dashed var(--border); margin: 0.5rem 0; }
.rent-result { display: flex; justify-content: space-between; font-size: 0.9rem; font-weight: 800; padding-top: 0.25rem; }
.rent-result.ganando { color: var(--success); }
.rent-result.perdiendo { color: var(--danger); }
.product-card-recipe { border-top: 1px solid var(--border-soft); padding-top: 0.7rem; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.85rem; }
.product-card-recipe strong { display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.4rem; font-weight: 700; color: var(--text); }
.product-card-recipe ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.product-card-recipe ul li { background: var(--primary-xlight); color: var(--primary); border-radius: 999px; padding: 0.15rem 0.6rem; font-size: 0.75rem; font-weight: 600; }
.product-card-actions { display: flex; gap: 0.4rem; margin-top: auto; }

/* ===== RECETA FORM ===== */
.recipe-section {
  background: var(--surface2); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.1rem; margin-bottom: 1.25rem;
}
.recipe-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.85rem; gap: 1rem; flex-wrap: wrap; }
.recipe-header h4 { font-size: 0.85rem; font-weight: 700; }
.ingredient-list { display: flex; flex-direction: column; gap: 0.5rem; }
.ingredient-row {
  display: grid; grid-template-columns: 1fr 110px 100px auto;
  gap: 0.5rem; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.5rem 0.65rem;
}
.ingredient-row select, .ingredient-row input {
  border: 1px solid var(--border); border-radius: 6px; padding: 0.35rem 0.55rem;
  font-size: 0.85rem; background: var(--surface); color: var(--text); outline: none;
}
.ingredient-row select:focus, .ingredient-row input:focus { border-color: var(--primary); }
.unit-select-small {
  font-size: 0.8rem; font-weight: 700; color: var(--primary) !important;
  background: var(--primary-light) !important; border-radius: 6px !important;
  padding: 0.35rem 0.4rem !important; text-align: center;
  border: 1.5px solid var(--border-focus, var(--primary)) !important;
  cursor: pointer; width: 100%;
}
.empty-ing-msg { text-align: center; color: var(--text-light); font-size: 0.82rem; padding: 0.75rem; }

/* ===== VENTAS LAYOUT ===== */
.ventas-layout { display: grid; grid-template-columns: 1fr 330px; gap: 1.5rem; align-items: start; }

/* ===== RESUMEN DIARIO ===== */
.resumen-card h3 { font-size: 1rem; font-weight: 800; margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-soft); }
.resumen-hint-box { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; padding: 1.5rem 1rem; color: var(--text-muted); text-align: center; }
.resumen-hint-box p { font-size: 0.83rem; line-height: 1.5; }
.resumen-hint-box svg { color: var(--accent); }
.resumen-section { border: 1px solid var(--border-soft); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 0.5rem; }
.resumen-section summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem 1rem; cursor: pointer; font-size: 0.88rem; font-weight: 600;
  list-style: none; user-select: none; background: var(--surface2); transition: background 0.15s;
}
.resumen-section summary::-webkit-details-marker { display: none; }
.resumen-section summary:hover { background: var(--primary-xlight); }
.resumen-section[open] summary { background: var(--primary-xlight); }
.resumen-section summary .toggle-icon { font-size: 0.7rem; color: var(--text-muted); transition: transform 0.2s; }
.resumen-section[open] summary .toggle-icon { transform: rotate(90deg); }
.resumen-section-body { padding: 0.6rem 1rem 0.8rem; background: var(--surface); border-top: 1px solid var(--border-soft); }
.resumen-section-body .detail-row { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); padding: 0.2rem 0; }
.resumen-section-body .detail-row span:last-child { font-weight: 600; color: var(--text); }
.resumen-total {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.9rem 1rem; border-radius: var(--radius-sm); font-size: 1rem; font-weight: 800; margin-top: 0.5rem;
}
.resumen-total.ganancia-positiva { background: var(--success-bg); color: var(--success); }
.resumen-total.ganancia-negativa { background: var(--danger-bg); color: var(--danger); }

/* ===== CIERRE MENSUAL ===== */
.mensual-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow);
}

.stat-card .stat-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.stat-card.ingresos .stat-value { color: var(--primary); }
.stat-card.costo .stat-value { color: var(--warning); }
.stat-card.ganancia .stat-value { color: var(--success); }
.stat-card.ganancia.negativo .stat-value { color: var(--danger); }

.mensual-section-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 1.5rem 0 0.75rem;
}

.day-row-detail { background: var(--primary-xlight); }
.day-row-detail td { padding: 0.4rem 1.5rem !important; font-size: 0.8rem; color: var(--text-muted); }

.tag-producto {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  padding: 0.15rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin: 0.1rem;
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(30,27,75,0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 999; backdrop-filter: blur(2px);
}
.modal { background: var(--surface); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-md); max-width: 380px; width: 92%; text-align: center; }
.modal-icon { width: 52px; height: 52px; background: var(--danger-bg); color: var(--danger); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; }
.modal p { margin-bottom: 1.5rem; font-size: 0.95rem; color: var(--text); }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem; background: var(--text);
  color: #fff; border-radius: 999px; padding: 0.6rem 1.3rem;
  font-size: 0.85rem; font-weight: 600; z-index: 9999; box-shadow: var(--shadow-md);
  animation: slideUp 0.2s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
@keyframes slideUp { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ===== UTIL ===== */
.hidden { display: none !important; }

/* ===== CONFIGURACIÓN ===== */
.config-unit-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  min-height: 2rem;
}

.config-unit-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
}

.config-unit-tag button {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0;
  line-height: 1;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.config-unit-tag button:hover { opacity: 1; }

.config-add-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.config-add-row input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  outline: none;
  color: var(--text);
}
.config-add-row input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .ventas-layout { grid-template-columns: 1fr; }
  .field-wide { grid-column: span 1; }
  main { padding: 1rem 1rem 3rem; }
}
@media (max-width: 700px) {
  .header-inner { min-height: auto; padding: 0.6rem 1rem; gap: 0.5rem; }
  nav { flex-wrap: wrap; gap: 0.2rem; }
  .tab-btn { font-size: 0.75rem; padding: 0.35rem 0.7rem; }
  .tab-btn svg { display: none; }
  #user-email-label { display: none; }
  .products-grid { grid-template-columns: 1fr; }
  .ingredient-row { grid-template-columns: 1fr 80px 90px auto; }
  .mensual-stats { grid-template-columns: 1fr 1fr; }
}