/* ===== COSENIT BRAND TOKENS ===== */
:root {
  --primary: #201E3A;
  --primary-80: rgba(32, 30, 58, .8);
  --primary-light: #2e2b52;
  --orange: #EC693D;
  --orange-hover: #d45a2f;
  --cyan: #68C4D7;
  --cyan-light: #e8f8fb;
  --white: #ffffff;
  --gray-50: #f7f7f8;
  --gray-100: #ebebed;
  --gray-300: #c4c4cc;
  --gray-500: #7e7e8f;
  --gray-700: #3d3d50;
  --success: #4FAD5B;
  --error: #E21717;
  --font: 'Montserrat', 'Tahoma', sans-serif;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 2px 12px rgba(32, 30, 58, .10);
  --shadow-md: 0 4px 24px rgba(32, 30, 58, .14);
  --transition: .2s ease;
}

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

html {
  font-size: 15px;
}

body {
  font-family: var(--font);
  background: var(--gray-50);
  color: var(--primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.loading {
  overflow: hidden;
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #201E3A;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  overflow: hidden;
  animation: loadingFadeIn .6s ease forwards;
  transition: opacity .35s ease, visibility .35s ease;
}

.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-accent-bar {
  width: 3px;
  height: 48px;
  background: linear-gradient(180deg, #EC693D 0%, rgba(236, 105, 61, 0) 100%);
  border-radius: 2px;
  margin-bottom: 24px;
}

.loading-brand {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 5px;
  color: #68C4D7;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.loading-title {
  font-size: 23px;
  font-weight: 600;
  color: #fff;
  letter-spacing: .4px;
  margin-bottom: 48px;
}

.loading-track {
  width: 200px;
  height: 2px;
  background: rgba(255, 255, 255, .08);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 20px;
}

.loading-fill {
  height: 100%;
  width: 45%;
  background: linear-gradient(90deg, #EC693D, #68C4D7);
  border-radius: 2px;
  animation: loadingSlide 1.5s cubic-bezier(.4, 0, .2, 1) infinite;
}

.loading-status {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .25);
}

.loading-dots {
  margin-top: 52px;
  display: flex;
  gap: 7px;
}

.loading-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .15);
  animation: loadingPulse 1.4s ease-in-out infinite;
}

.loading-dot:nth-child(2) {
  animation-delay: .2s;
}

.loading-dot:nth-child(3) {
  animation-delay: .4s;
}

@keyframes loadingFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes loadingSlide {
  0% {
    transform: translateX(-120%);
  }

  100% {
    transform: translateX(340%);
  }
}

@keyframes loadingPulse {
  0%, 100% {
    background: rgba(255, 255, 255, .12);
    transform: scale(1);
  }

  50% {
    background: #EC693D;
    transform: scale(1.35);
  }
}

/* ===== HEADER ===== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .25);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.logo-img {
  height: 70px;
  width: auto;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.1));
  /* Sutil refuerzo de bordes */
}

.brand-sep {
  width: 1px;
  height: 28px;
  background: var(--orange);
  margin: 0 .25rem;
}

.brand-sub {
  color: #FFFFFF;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  line-height: 1.2;
}

.header-nav {
  display: flex;
  gap: .5rem;
}

.nav-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, .65);
  font-family: var(--font);
  font-size: .8rem;
  font-weight: 500;
  padding: .45rem .9rem;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
  letter-spacing: .02em;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, .1);
  color: #fff;
}

.nav-btn.active {
  background: var(--orange);
  color: #fff;
}

/* ===== MAIN ===== */
.app-main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3rem;
}

/* ===== VIEW TOGGLE ===== */
.view {
  display: none;
}

.view.active {
  display: block;
}

/* ===== MODE TABS ===== */
.mode-tabs {
  display: flex;
  gap: .5rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--gray-100);
  padding-bottom: .5rem;
}

.mode-tab {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: .85rem;
  font-weight: 600;
  color: var(--gray-500);
  padding: .5rem 1.1rem;
  border-radius: 6px 6px 0 0;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: background var(--transition), color var(--transition);
  letter-spacing: .02em;
}

.mode-tab:hover {
  background: var(--gray-100);
  color: var(--primary);
}

.mode-tab.active {
  color: var(--orange);
  border-bottom: 2px solid var(--orange);
  margin-bottom: -2px;
}

.tab-icon {
  font-size: 1rem;
}

/* ===== CONVERTER GRID ===== */
.converter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 768px) {
  .converter-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== CARDS ===== */
.form-card,
.result-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  border-top: 3px solid var(--primary);
}

.result-card {
  border-top-color: var(--orange);
  min-height: 300px;
  display: flex;
  flex-direction: column;
}

/* ===== FIELD GROUPS ===== */
.field-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-bottom: .85rem;
}

.field-label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.field-label.mt8 {
  margin-top: .5rem;
}

.field-input,
.field-select {
  font-family: var(--font);
  font-size: .9rem;
  color: var(--primary);
  background: var(--gray-50);
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius);
  padding: .6rem .75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
}

.field-input:focus,
.field-select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(104, 196, 215, .2);
}

.field-select {
  cursor: pointer;
}

/* ===== ENERGÉTICO PILLS ===== */
.energetico-pills {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.pill {
  font-family: var(--font);
  font-size: .75rem;
  font-weight: 600;
  padding: .3rem .75rem;
  border-radius: 20px;
  border: 1.5px solid var(--gray-100);
  background: var(--white);
  color: var(--gray-700);
  cursor: pointer;
  letter-spacing: .03em;
  transition: all var(--transition);
}

.pill:hover {
  border-color: var(--cyan);
  color: var(--primary);
}

.pill.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* ===== BADGE OPTIONAL ===== */
.badge-optional {
  font-size: .65rem;
  background: var(--gray-100);
  color: var(--gray-500);
  border-radius: 4px;
  padding: .1rem .4rem;
  font-weight: 500;
  letter-spacing: .03em;
  vertical-align: middle;
}

/* ===== UNIT ROW ===== */
.unit-row {
  display: flex;
  align-items: flex-end;
  gap: .5rem;
  margin-bottom: .85rem;
}

.flex1 {
  flex: 1;
  margin-bottom: 0;
}

.swap-btn {
  background: var(--gray-100);
  border: none;
  cursor: pointer;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
  margin-bottom: .1rem;
}

.swap-btn:hover {
  background: var(--cyan);
  transform: rotate(180deg);
}

/* ===== TARIFF ROW ===== */
.tariff-row {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  margin-bottom: .85rem;
}

.tariff-half {
  flex: 1;
}

.tariff-arrow {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--orange);
  align-self: center;
  padding: 0 .1rem;
  flex-shrink: 0;
  padding-top: 1rem;
}

/* ===== FACTORS PANEL ===== */
.factors-panel {
  background: var(--cyan-light);
  border: 1px solid rgba(104, 196, 215, .4);
  border-radius: var(--radius);
  padding: .75rem 1rem;
  margin-bottom: .85rem;
}

.factors-title {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: .5rem;
}

.factors-hint {
  font-weight: 400;
  color: var(--gray-500);
  text-transform: none;
}

.factors-list {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.factor-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
}

.factor-item-label {
  flex: 1;
  color: var(--gray-700);
}

.factor-item-input {
  font-family: var(--font);
  font-size: .82rem;
  color: var(--primary);
  background: white;
  border: 1.5px solid var(--gray-100);
  border-radius: 6px;
  padding: .3rem .6rem;
  width: 110px;
  text-align: right;
  outline: none;
  transition: border-color var(--transition);
}

.factor-item-input:focus {
  border-color: var(--orange);
}

.factor-item-input.edited {
  border-color: var(--orange);
  background: #fff5f2;
}

.factor-item-reset {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-300);
  font-size: .85rem;
  padding: .15rem .25rem;
  border-radius: 4px;
  flex-shrink: 0;
  line-height: 1;
  transition: color var(--transition);
}

.factor-item-reset:hover {
  color: var(--orange);
}

/* ===== CALC BUTTON ===== */
.calc-btn {
  width: 100%;
  padding: .75rem;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 3px 10px rgba(236, 105, 61, .3);
}

.calc-btn:hover {
  background: var(--orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 5px 16px rgba(236, 105, 61, .35);
}

.calc-btn:active {
  transform: translateY(0);
}

/* ===== RESULT CARD CONTENT ===== */
.result-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  color: var(--gray-300);
  padding: 2rem 0;
}

.placeholder-icon {
  font-size: 2.5rem;
  opacity: .5;
}

.result-placeholder p {
  font-size: .85rem;
  text-align: center;
  color: var(--gray-500);
}

.result-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.result-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: 20px;
  align-self: flex-start;
}

.result-badge.tariff {
  background: var(--orange);
}

.result-value-wrap {
  display: flex;
  align-items: baseline;
  gap: .5rem;
  flex-wrap: wrap;
}

.result-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -.02em;
}

.result-unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .02em;
}

.result-from {
  font-size: .8rem;
  color: var(--gray-500);
  border-left: 3px solid var(--cyan);
  padding-left: .6rem;
}

/* ===== STEPS ===== */
.steps-section {
  margin-top: .25rem;
}

.steps-title {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: .6rem;
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.step-item {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  padding: .4rem .65rem;
  background: var(--gray-50);
  border-radius: 6px;
  border-left: 3px solid var(--gray-100);
}

.step-item.energy-step {
  border-left-color: var(--orange);
}

.step-item.standard-step {
  border-left-color: var(--cyan);
}

.step-item.currency-step {
  border-left-color: var(--success);
}

.step-from,
.step-to {
  font-weight: 600;
  color: var(--primary);
}

.step-arrow {
  color: var(--gray-300);
  font-size: .75rem;
}

.step-factor {
  margin-left: auto;
  font-weight: 700;
  color: var(--orange);
  font-size: .78rem;
  white-space: nowrap;
}

.step-label {
  font-size: .68rem;
  color: var(--gray-500);
  background: var(--gray-100);
  padding: .1rem .4rem;
  border-radius: 4px;
  margin-left: .25rem;
  white-space: nowrap;
}

.step-canonical-label {
  font-size: .68rem;
  color: var(--cyan);
  font-weight: 600;
  white-space: nowrap;
  margin-left: .2rem;
  opacity: .85;
}

.step-section-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--gray-500);
  padding: .2rem 0;
}

/* ===== FORMULA BOX ===== */
.formula-box {
  background: var(--primary);
  color: rgba(255, 255, 255, .9);
  border-radius: var(--radius);
  padding: .65rem 1rem;
  font-size: .78rem;
  font-weight: 500;
  line-height: 1.5;
  margin-top: auto;
  font-family: 'Courier New', monospace;
}

/* ===== ERROR ===== */
.result-error {
  flex: 1;
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem;
  background: #fff5f5;
  border: 1.5px solid rgba(226, 23, 23, .2);
  border-radius: var(--radius);
  color: var(--error);
  font-size: .85rem;
  font-weight: 500;
}

.error-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

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

/* ===== MANAGER VIEW ===== */
.manager-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .manager-grid {
    grid-template-columns: 1fr;
  }
}

.manager-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  border-top: 3px solid var(--primary);
}

.manager-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--primary);
  color: var(--white);
  font-weight: 600;
  font-size: .85rem;
}

.add-btn {
  background: var(--orange);
  border: none;
  cursor: pointer;
  color: var(--white);
  font-family: var(--font);
  font-size: .75rem;
  font-weight: 700;
  padding: .3rem .75rem;
  border-radius: 6px;
  letter-spacing: .03em;
  transition: background var(--transition);
}

.add-btn:hover {
  background: var(--orange-hover);
}

.data-table-wrap {
  overflow-x: auto;
  max-height: 420px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .8rem;
}

.data-table th {
  position: sticky;
  top: 0;
  background: var(--gray-50);
  color: var(--gray-500);
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  font-size: .68rem;
  padding: .6rem .8rem;
  text-align: left;
  border-bottom: 2px solid var(--gray-100);
}

.data-table td {
  padding: .55rem .8rem;
  border-bottom: 1px solid var(--gray-100);
  color: var(--primary);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: var(--cyan-light);
}

.factor-badge {
  background: var(--primary);
  color: var(--white);
  font-size: .68rem;
  font-weight: 700;
  padding: .15rem .45rem;
  border-radius: 4px;
}

.delete-row-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-300);
  font-size: .85rem;
  padding: .2rem .4rem;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}

.delete-row-btn:hover {
  color: var(--error);
  background: #fff0f0;
}

.edit-row-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-300);
  font-size: .85rem;
  padding: .2rem .4rem;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  margin-right: 2px;
}

.edit-row-btn:hover {
  color: var(--cyan);
  background: var(--cyan-light);
}

/* ===== MODAL ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(32, 30, 58, .6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 420px;
  overflow: hidden;
  animation: slideUp .2s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: .9rem;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, .7);
  font-size: 1rem;
  padding: .2rem;
  border-radius: 4px;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--white);
}

.modal-body {
  padding: 1.25rem;
}

.modal-hint {
  font-size: .75rem;
  color: var(--gray-500);
  background: var(--cyan-light);
  border: 1px solid rgba(104, 196, 215, .4);
  border-radius: 6px;
  padding: .5rem .75rem;
  margin-top: .25rem;
}

.modal-footer {
  padding: .75rem 1.25rem 1.25rem;
  display: flex;
  gap: .5rem;
  justify-content: flex-end;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  font-family: var(--font);
  font-size: .82rem;
  font-weight: 700;
  padding: .55rem 1.1rem;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  letter-spacing: .03em;
  transition: background var(--transition);
}

.btn-primary:hover {
  background: var(--orange-hover);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
  font-family: var(--font);
  font-size: .82rem;
  font-weight: 600;
  padding: .55rem 1.1rem;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: background var(--transition);
}

.btn-secondary:hover {
  background: var(--gray-300);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  background: var(--primary);
  color: var(--white);
  padding: .75rem 1.25rem;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: fadeIn .2s ease;
  max-width: 320px;
  line-height: 1.4;
}

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--error);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== ROW TWO HELPER ===== */
.row-two {
  display: flex;
  gap: .75rem;
}

.row-two .field-group {
  flex: 1;
}