/*
  Archivo: app.css
  Ruta: estudiantes-mvp/css/app.css
  Funciones principales:
  - Dar estilos generales a estudiante.html y config.html.
  - Diseñar tarjetas, formularios, botones, mensajes y pasos.
  - Diseñar popup de avance guardado en navegador.
  - Diseñar paginación interna de propuestas.
  - Mantener una interfaz formal, institucional y compatible con navegador normal.
  - Evitar dependencia de frameworks externos.
*/

:root {
  --bg: #f2f5f9;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #101827;
  --muted: #64748b;
  --line: #d8e0ec;

  --primary: #0b2345;
  --primary-dark: #06172e;
  --primary-mid: #123a6b;
  --primary-soft: #eaf1fb;

  --gold: #c9ad63;
  --gold-soft: #fff6df;
  --gold-dark: #8a6b24;

  --ai: #8a6b24;
  --ai-dark: #6f551b;

  --success-bg: #e9f9ef;
  --success-text: #146c36;
  --warning-bg: #fff7e6;
  --warning-text: #8a5a00;
  --error-bg: #fdecec;
  --error-text: #a32020;
  --info-bg: #eaf1fb;
  --info-text: #0b3a75;

  --shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
  --modal-shadow: 0 24px 70px rgba(15, 23, 42, 0.28);

  --radius: 18px;
  --radius-small: 12px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(201, 173, 99, 0.12), transparent 28%),
    var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

a {
  color: inherit;
}

.app-header {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(201, 173, 99, 0.2), transparent 34%),
    linear-gradient(135deg, #06172e 0%, #0b2345 55%, #123a6b 100%);
  color: #ffffff;
  padding: 30px 20px 68px;
  border-bottom: 5px solid var(--gold);
}

.app-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.055), transparent 45%);
  pointer-events: none;
}

.app-header--config {
  background:
    radial-gradient(circle at top right, rgba(201, 173, 99, 0.16), transparent 34%),
    linear-gradient(135deg, #111827 0%, #0b2345 100%);
}

.app-header__content {
  position: relative;
  z-index: 1;
  width: min(1200px, 100%);
  margin: 0 auto;
}

.brand {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  align-items: center;
  gap: 30px;
}

.brand__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 128px;
  padding: 14px;
  border: 1px solid rgba(201, 173, 99, 0.5);
  border-radius: 22px;
  background: #020617;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
}

.brand__logo {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
}

.brand__text {
  min-width: 0;
}

.app-header h1 {
  margin: 10px 0 10px;
  max-width: 760px;
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.app-header p {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.02rem;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 7px 13px;
  border: 1px solid rgba(201, 173, 99, 0.65);
  border-radius: 999px;
  background: rgba(201, 173, 99, 0.16);
  color: #f8e7b5;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-actions {
  margin-top: 22px;
}

.app-container {
  position: relative;
  z-index: 2;
  width: min(1200px, calc(100% - 32px));
  margin: -42px auto 60px;
}

.card {
  margin-bottom: 22px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.section-heading {
  margin-bottom: 22px;
}

.section-heading h2 {
  margin: 4px 0 8px;
  font-size: clamp(1.35rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
}

.section-kicker {
  margin: 0 0 4px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.stepper {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.stepper__item {
  padding: 13px 10px;
  border: 1px solid #d7dfeb;
  border-radius: 999px;
  background: #ffffff;
  color: #526174;
  font-size: 0.84rem;
  font-weight: 800;
  text-align: center;
  box-shadow: var(--shadow-soft);
}

.stepper__item.is-active {
  border-color: var(--gold);
  background: linear-gradient(135deg, var(--primary), var(--primary-mid));
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(11, 35, 69, 0.22);
}

.step-panel {
  display: block;
}

.step-panel[hidden] {
  display: none;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  color: #111827;
  font-weight: 800;
}

.field small {
  color: var(--muted);
  font-size: 0.82rem;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid #cfd8e6;
  border-radius: var(--radius-small);
  background: #ffffff;
  color: var(--text);
  outline: none;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease;
}

.field input,
.field select {
  min-height: 48px;
  padding: 0 14px;
}

.field textarea {
  min-height: 96px;
  padding: 12px 14px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(11, 35, 69, 0.13);
}

.field input.is-invalid,
.field textarea.is-invalid,
.field select.is-invalid {
  border-color: var(--error-text);
  box-shadow: 0 0 0 4px rgba(163, 32, 32, 0.12);
}

.form-actions,
.step-actions,
.ai-actions,
.proposal-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.proposal-page-actions {
  justify-content: flex-end;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 900;
  transition:
    transform 0.12s ease,
    background 0.12s ease,
    border-color 0.12s ease,
    box-shadow 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-mid));
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(11, 35, 69, 0.18);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn--secondary {
  border-color: #cfd8e6;
  background: var(--surface);
  color: var(--primary);
}

.btn--secondary:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.btn--ghost {
  border-color: transparent;
  background: #eef2f7;
  color: var(--primary);
}

.btn--ghost:hover {
  background: #e2e8f0;
}

.btn--ai {
  background: linear-gradient(135deg, var(--gold), #d8bd73);
  color: #111827;
  box-shadow: 0 10px 24px rgba(138, 107, 36, 0.18);
}

.btn--ai:hover {
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  color: #ffffff;
}

.btn.is-selected {
  border-color: var(--success-text);
  background: var(--success-bg);
  color: var(--success-text);
}

.status-message {
  margin: 14px 0;
  min-height: 20px;
  border-radius: var(--radius-small);
  font-weight: 700;
}

.status-message:not(:empty) {
  padding: 12px 14px;
}

.status-message.is-info {
  background: var(--info-bg);
  color: var(--info-text);
}

.status-message.is-success {
  background: var(--success-bg);
  color: var(--success-text);
}

.status-message.is-warning {
  background: var(--warning-bg);
  color: var(--warning-text);
}

.status-message.is-error {
  background: var(--error-bg);
  color: var(--error-text);
}

.loading-box {
  margin-bottom: 16px;
  padding: 13px 15px;
  border-radius: var(--radius-small);
  background: #111827;
  color: #ffffff;
  font-weight: 800;
}

.data-grid,
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.data-grid div,
.summary-grid div {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface-soft);
}

.data-grid span,
.summary-grid span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.data-grid strong,
.summary-grid strong {
  display: block;
  overflow-wrap: anywhere;
}

.proposal-card,
.proposal-summary,
.provider-card,
.check-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}

.proposal-card {
  margin-bottom: 22px;
  padding: 22px;
}

.proposal-card.is-active {
  animation: fadeInProposal 0.16s ease;
}

.proposal-card h3,
.proposal-summary h3,
.provider-card h3 {
  margin-top: 0;
}

.proposal-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding: 10px 16px;
  border: 1px solid rgba(11, 35, 69, 0.12);
  border-left: 5px solid var(--gold);
  border-radius: 14px;
  background: linear-gradient(135deg, #eef4fb, #f8fafc);
}

.proposal-pager__label {
  margin: 0;
  color: var(--primary);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.proposal-pager__help {
  margin: 1px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.proposal-pager__dots {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.proposal-pager__dot {
  width: 13px;
  height: 13px;
  border: 2px solid var(--primary);
  border-radius: 999px;
  background: #ffffff;
  opacity: 0.55;
}

.proposal-pager__dot.is-active {
  border-color: var(--gold-dark);
  background: var(--gold);
  opacity: 1;
}

section[data-step-panel="propuestas"] .proposal-card {
  padding-top: 24px;
}

section[data-step-panel="propuestas"] .proposal-card > h3 {
  display: none;
}

#formPropuestas textarea[data-auto-grow="true"] {
  overflow: hidden;
  min-height: 52px;
  line-height: 1.45;
  resize: none;
}

#formPropuestas .field--titulo-destacado {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(201, 173, 99, 0.58);
  border-radius: 20px;
  background:
    linear-gradient(135deg, rgba(255, 246, 223, 0.95), #ffffff 72%);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.07);
}

#formPropuestas .field--titulo-destacado::before {
  content: "Título principal";
  display: inline-flex;
  width: fit-content;
  margin-bottom: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(201, 173, 99, 0.18);
  color: var(--gold-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#formPropuestas .field--titulo-destacado label {
  color: var(--gold-dark);
  font-size: 1.08rem;
  font-weight: 900;
  letter-spacing: 0.01em;
}

#formPropuestas .field--titulo-destacado textarea {
  min-height: 86px;
  border: 2px solid var(--gold);
  background: #ffffff;
  color: #06172e;
  font-size: 1.08rem;
  font-weight: 800;
}

#formPropuestas .field--titulo-destacado textarea:focus {
  border-color: var(--gold-dark);
  box-shadow: 0 0 0 4px rgba(201, 173, 99, 0.2);
}

section[data-step-panel="propuestas"]:not([hidden]) {
  padding-bottom: 112px;
}

section[data-step-panel="propuestas"]:not([hidden]) .proposal-card:not([hidden]) .proposal-page-actions {
  position: fixed;
  right: 28px;
  bottom: 24px;
  z-index: 80;
  display: flex;
  justify-content: flex-end;
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(11, 35, 69, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(10px);
}

section[data-step-panel="propuestas"]:not([hidden]) .proposal-card:not([hidden]) .proposal-page-actions .btn--primary {
  min-width: 220px;
}

.suggestions-list {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.suggestion-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: #ffffff;
}

.suggestion-card__head {
  color: var(--ai);
  font-size: 0.92rem;
}

.suggestion-card__title {
  margin: 8px 0;
  font-size: 1.02rem;
  font-weight: 800;
}

.suggestion-card__why {
  margin: 0 0 12px;
  color: var(--muted);
}

.summary-box {
  margin-bottom: 18px;
}

.summary-list {
  display: grid;
  gap: 16px;
}

.proposal-summary {
  padding: 18px;
}

.proposal-summary p {
  margin: 8px 0;
}

.favorite-option {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-weight: 800;
}

.favorite-option input {
  width: 18px;
  height: 18px;
}

.check-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px;
  cursor: pointer;
}

.check-card input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
}

.providers-list {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.provider-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
}

.provider-card p {
  margin: 4px 0;
  color: var(--muted);
}

.subsection {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.result-box {
  overflow: auto;
  max-height: 360px;
  margin: 18px 0 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: #0f172a;
  color: #dbeafe;
  font-size: 0.86rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

.memory-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 20px;
}

.memory-modal[hidden] {
  display: none;
}

.memory-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.58);
}

.memory-modal__card {
  position: relative;
  width: min(520px, 100%);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: var(--modal-shadow);
}

.memory-modal__card h2 {
  margin: 6px 0 10px;
  font-size: clamp(1.45rem, 4vw, 2rem);
}

.memory-modal__card p {
  color: var(--muted);
}

.memory-modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.muted {
  color: var(--muted);
}

.is-hidden {
  display: none !important;
}

@keyframes fadeInProposal {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

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

@media (max-width: 1100px) {
  .data-grid,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .brand {
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: center;
  }

  .brand__logo-wrap {
    width: min(420px, 100%);
    margin: 0 auto;
  }

  .app-badge {
    margin: 0 auto;
  }

  .app-header p {
    margin-left: auto;
    margin-right: auto;
  }

  .stepper {
    grid-template-columns: repeat(3, 1fr);
  }

  .provider-card,
  .proposal-pager {
    align-items: stretch;
    flex-direction: column;
  }

  .proposal-pager__dots {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .app-header {
    padding: 24px 16px 62px;
  }

  .brand__logo-wrap {
    min-height: 102px;
    padding: 12px;
    border-radius: 18px;
  }

  .brand__logo {
    max-width: 260px;
  }

  .app-header h1 {
    font-size: clamp(1.65rem, 9vw, 2.15rem);
  }

  .app-container {
    width: min(100% - 20px, 1120px);
    margin-top: -38px;
  }

  .card,
  .memory-modal__card {
    padding: 18px;
  }

  .stepper {
    grid-template-columns: repeat(2, 1fr);
  }

  .stepper__item {
    border-radius: var(--radius-small);
    font-size: 0.78rem;
  }

  .form-grid,
  .data-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .form-actions,
  .step-actions,
  .ai-actions,
  .proposal-page-actions,
  .memory-modal__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  section[data-step-panel="propuestas"]:not([hidden]) {
    padding-bottom: 132px;
  }

  section[data-step-panel="propuestas"]:not([hidden]) .proposal-card:not([hidden]) .proposal-page-actions {
    right: 12px;
    bottom: 12px;
    left: 12px;
    border-radius: 22px;
  }

  section[data-step-panel="propuestas"]:not([hidden]) .proposal-card:not([hidden]) .proposal-page-actions .btn {
    width: 100%;
  }
}