:root {
  --color-primary: #0b2e6b;
  --color-primary-soft: #163f83;
  --color-accent-green: #67c23a;
  --color-accent-yellow: #ffc72c;
  --color-bg-soft: #f7f9fc;
  --color-border: #dde4ef;
  --color-text: #1f2937;
  --color-text-soft: #53627c;
  --shadow-soft: 0 18px 40px rgba(12, 39, 86, 0.08);
  --shadow-panel: 0 28px 65px rgba(12, 39, 86, 0.1);
  --radius-xl: 28px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --site-width: 1500px;
  --transition-fast: 180ms ease;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(11, 46, 107, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(255, 199, 44, 0.14), transparent 18%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 52%, #ffffff 100%);
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 1.2rem;
  height: 1.2rem;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-shell {
  width: min(calc(100% - 32px), var(--site-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(221, 228, 239, 0.84);
  box-shadow: 0 12px 28px rgba(11, 46, 107, 0.04);
}

.site-header__row {
  display: grid;
  grid-template-columns: auto minmax(320px, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  min-height: 94px;
}

.brand-link img {
  height: 52px;
  width: auto;
}

.search-bar,
.conversation-search {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 58px;
  padding: 0 0.85rem 0 1.2rem;
  border: 1px solid rgba(210, 220, 235, 0.96);
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.search-bar input,
.conversation-search input,
.message-form input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--color-text);
  outline: none;
}

.search-submit {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--color-accent-green);
  color: #fff;
  box-shadow: 0 14px 28px rgba(103, 194, 58, 0.28);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.search-submit:hover,
.search-submit:focus-visible {
  transform: translateY(-1px);
  background: #59b430;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.header-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 1rem;
  border-radius: 16px;
  color: var(--color-primary);
  font-weight: 700;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.header-link:hover,
.header-link:focus-visible {
  background: rgba(11, 46, 107, 0.06);
  transform: translateY(-1px);
}

.header-link--strong {
  background: rgba(11, 46, 107, 0.08);
}

.messages-page {
  padding: 2rem 0 3.5rem;
}

.messages-app {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr) 330px;
  min-height: calc(100vh - 160px);
  border: 1px solid rgba(221, 228, 239, 0.92);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  background: #e7edf8;
}

.inbox-panel,
.chat-panel,
.product-panel {
  background: rgba(255, 255, 255, 0.96);
}

.inbox-panel {
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(221, 228, 239, 0.92);
}

.inbox-header {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(221, 228, 239, 0.76);
}

.section-kicker {
  margin: 0 0 0.35rem;
  color: var(--color-accent-green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.inbox-header h1 {
  margin: 0;
  color: var(--color-primary);
  font-size: 1.85rem;
}

.inbox-title-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.inbox-count,
.conversation-unread {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  padding: 0 0.4rem;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
}

.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.8rem;
}

.conversation-item {
  width: 100%;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 0.9rem;
  text-align: left;
  border: 0;
  border-radius: 20px;
  padding: 0.9rem;
  background: transparent;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.conversation-item + .conversation-item {
  margin-top: 0.55rem;
}

.conversation-item:hover,
.conversation-item:focus-visible {
  background: rgba(11, 46, 107, 0.05);
  transform: translateY(-1px);
}

.conversation-item.is-active {
  background: rgba(11, 46, 107, 0.08);
}

.conversation-item.has-unread {
  background: rgba(103, 194, 58, 0.07);
}

.conversation-item.has-unread .conversation-title,
.conversation-item.has-unread .conversation-last {
  color: var(--color-primary);
  font-weight: 800;
}

.conversation-avatar,
.chat-avatar {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--color-primary), #174897);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  box-shadow: 0 16px 30px rgba(11, 46, 107, 0.16);
}

.conversation-copy {
  min-width: 0;
}

.conversation-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}

.conversation-title {
  margin: 0;
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 800;
}

.conversation-time {
  color: #7b8797;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.conversation-time-wrap {
  display: grid;
  flex: 0 0 auto;
  justify-items: end;
  gap: 0.35rem;
}

.conversation-unread {
  min-width: 21px;
  height: 21px;
  background: var(--color-accent-green);
  font-size: 0.7rem;
}

.conversation-school,
.conversation-product,
.conversation-last {
  margin: 0.2rem 0 0;
  color: var(--color-text-soft);
  font-size: 0.9rem;
  line-height: 1.35;
}

.conversation-product {
  color: var(--color-primary);
  font-weight: 700;
}

.conversation-last {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.conversation-empty,
.empty-chat,
.product-empty {
  display: grid;
  gap: 0.45rem;
  place-items: center;
  text-align: center;
  color: var(--color-text-soft);
}

.conversation-empty {
  min-height: 180px;
  padding: 1rem;
}

.chat-panel {
  display: flex;
  flex-direction: column;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.35rem 1.5rem;
  border-bottom: 1px solid rgba(221, 228, 239, 0.76);
}

.mobile-back {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(221, 228, 239, 0.96);
  border-radius: 14px;
  background: #fff;
  color: var(--color-primary);
}

.chat-header__copy {
  min-width: 0;
}

.chat-header__copy h2 {
  margin: 0;
  color: var(--color-primary);
  font-size: 1.35rem;
}

.chat-header__copy p {
  margin: 0.25rem 0 0;
  color: var(--color-text-soft);
}

.typing-indicator {
  color: #4da82b !important;
  font-size: 0.82rem;
  font-weight: 700;
}

.messages-list {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  background:
    radial-gradient(circle at top right, rgba(103, 194, 58, 0.08), transparent 24%),
    linear-gradient(180deg, #fbfdff 0%, #f7faff 100%);
}

.message-stream {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.message {
  display: flex;
  flex-direction: column;
  max-width: min(74%, 540px);
  gap: 0.35rem;
  padding: 0.85rem 1rem;
  border-radius: 20px;
  background: #fff;
  color: var(--color-text);
  box-shadow: 0 18px 30px rgba(12, 39, 86, 0.06);
}

.message.is-mine {
  align-self: flex-end;
  background: linear-gradient(135deg, #78d44a, #67c23a);
  color: #fff;
}

.message__body {
  line-height: 1.45;
  word-break: break-word;
}

.message__time {
  align-self: flex-end;
  font-size: 0.76rem;
  opacity: 0.82;
}

.message__status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  align-self: flex-end;
  font-size: 0.72rem;
  opacity: 0.88;
}

.message__status .icon {
  width: 0.9rem;
  height: 0.9rem;
}

.message-form {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.35rem;
  border-top: 1px solid rgba(221, 228, 239, 0.76);
  background: #fff;
}

.message-form {
  min-height: 88px;
}

.message-composer {
  flex: 1;
  min-width: 0;
  padding: 0.65rem 1rem 0.45rem;
  border: 1px solid rgba(210, 220, 235, 0.96);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.message-form textarea {
  display: block;
  width: 100%;
  min-height: 26px;
  max-height: 140px;
  padding: 0;
  resize: none;
  overflow-y: auto;
  border: 0;
  background: transparent;
  color: var(--color-text);
  line-height: 1.5;
  outline: none;
}

.composer-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.2rem;
  color: #8290a4;
  font-size: 0.68rem;
}

.message-form button {
  width: 54px;
  height: 54px;
  border: 0;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 16px 30px rgba(11, 46, 107, 0.18);
}

.message-form button:disabled,
.message-form textarea:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.product-panel {
  padding: 1.35rem;
  border-left: 1px solid rgba(221, 228, 239, 0.92);
}

.product-empty {
  min-height: 100%;
  padding: 2rem 1rem;
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 100%;
}

.product-card__media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(180deg, #f7f9fc, #eef3fb);
}

.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card__status {
  position: absolute;
  left: 1rem;
  top: 1rem;
  padding: 0.42rem 0.75rem;
  border-radius: 999px;
  background: rgba(11, 46, 107, 0.9);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
}

.product-card__school,
.product-card__location {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  color: var(--color-text-soft);
  font-weight: 600;
}

.product-card h3 {
  margin: 0;
  color: var(--color-primary);
  font-size: 1.45rem;
  line-height: 1.25;
}

.product-card__price {
  margin: 0;
  color: var(--color-primary);
  font-size: 2rem;
  font-weight: 800;
}

.product-card__meta {
  display: grid;
  gap: 0.55rem;
}

.product-card__actions {
  display: grid;
  gap: 0.65rem;
  margin-top: auto;
}

.view-product-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  min-height: 52px;
  padding: 0 1rem;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-primary), #174897);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 18px 30px rgba(11, 46, 107, 0.18);
}

.product-owner-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.product-status-action {
  min-height: 46px;
  padding: 0 0.75rem;
  border: 1px solid rgba(11, 46, 107, 0.16);
  border-radius: 14px;
  background: #fff;
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 800;
}

.product-status-action--primary {
  border-color: transparent;
  background: var(--color-accent-yellow);
}

.product-status-action--danger {
  border-color: rgba(190, 47, 75, 0.18);
  background: #fff1f3;
  color: #a52d49;
}

.product-status-action:disabled {
  cursor: wait;
  opacity: 0.6;
}

.product-card__status[data-status="reserved"] {
  background: rgba(177, 126, 0, 0.94);
}

.product-card__status[data-status="sold"] {
  background: rgba(166, 45, 73, 0.94);
}

.product-card__status[data-status="paused"] {
  background: rgba(87, 102, 124, 0.94);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 70;
  max-width: 320px;
  padding: 0.95rem 1.15rem;
  border-radius: 16px;
  background: rgba(11, 46, 107, 0.96);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 20px 34px rgba(11, 46, 107, 0.2);
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(103, 194, 58, 0.2);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1240px) {
  .messages-app {
    grid-template-columns: 320px minmax(0, 1fr);
  }

  .product-panel {
    display: none;
  }
}

@media (max-width: 880px) {
  .site-header__row {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1rem 0;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .messages-page {
    padding-top: 1rem;
  }

  .messages-app {
    min-height: calc(100vh - 176px);
    grid-template-columns: 1fr;
  }

  body[data-view="list"] .chat-panel,
  body[data-view="list"] .product-panel {
    display: none;
  }

  body[data-view="chat"] .inbox-panel {
    display: none;
  }

  body[data-view="chat"] .product-panel {
    display: block;
    border-left: 0;
    border-top: 1px solid rgba(221, 228, 239, 0.92);
  }

  .mobile-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .message {
    max-width: 88%;
  }
}

@media (max-width: 560px) {
  .site-shell {
    width: min(calc(100% - 20px), var(--site-width));
  }

  .messages-page {
    padding-bottom: 1.4rem;
  }

  .messages-app {
    border-radius: 24px;
  }

  .header-link {
    flex: 1 1 30%;
    min-width: 0;
  }

  .conversation-list {
    padding: 0.7rem;
  }

  .messages-list {
    padding: 1rem;
  }

  .chat-header,
  .product-panel,
  .inbox-header {
    padding-inline: 1rem;
  }

  .message-form {
    padding-inline: 1rem;
  }

  .composer-meta span:first-child {
    display: none;
  }

  .product-owner-actions {
    grid-template-columns: 1fr;
  }
}

/* ColegioLibre · confianza y seguridad */
.chat-safety-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.chat-safety-actions button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid #d9e1ee;
  border-radius: 12px;
  background: #fff;
  color: #526077;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.chat-safety-actions button:hover {
  border-color: #b8c6dc;
  color: #0b2e6b;
  background: #f7f9fc;
}

.chat-safety-actions button[data-blocked="true"] {
  border-color: #ffd4d4;
  color: #a12f2f;
  background: #fff5f5;
}

.chat-safety-actions .icon {
  width: 16px;
  height: 16px;
}

.conversation-trust {
  padding: 0 18px 18px;
}

.trust-status-card {
  padding: 14px;
  border: 1px solid #dce7f7;
  border-radius: 15px;
  background: #f7faff;
  color: #34445f;
}

.trust-status-card--complete {
  border-color: #cceabd;
  background: #f4fbed;
}

.trust-status-card strong,
.trust-status-card span {
  display: block;
}

.trust-status-card strong {
  color: #0b2e6b;
  font-size: 13px;
}

.trust-status-card span {
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.5;
}

.review-form {
  margin-top: 12px;
}

.review-form__stars {
  display: flex;
  flex-direction: row-reverse;
  justify-content: flex-end;
  gap: 4px;
  margin: 10px 0;
}

.review-form__stars input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.review-form__stars label {
  color: #cbd3df;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.review-form__stars label:hover,
.review-form__stars label:hover ~ label,
.review-form__stars input:checked ~ label {
  color: #ffc72c;
}

.review-form textarea {
  width: 100%;
  min-height: 82px;
  resize: vertical;
  padding: 11px 12px;
  border: 1px solid #d8e0ec;
  border-radius: 12px;
  font: inherit;
  font-size: 12px;
}

.review-form button {
  width: 100%;
  min-height: 40px;
  margin-top: 9px;
  border: 0;
  border-radius: 12px;
  background: #0b2e6b;
  color: #fff;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.review-form button:disabled {
  opacity: 0.65;
  cursor: wait;
}

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

.safety-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 20px;
}

.safety-modal__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(4, 18, 44, 0.56);
  backdrop-filter: blur(4px);
}

.safety-modal__dialog {
  position: relative;
  width: min(100%, 520px);
  padding: 24px;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(7, 31, 76, 0.28);
}

.safety-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.safety-modal__head h2 {
  margin: 4px 0 0;
  color: #0b2e6b;
  font-size: 23px;
}

.safety-modal__close {
  width: 38px;
  height: 38px;
  border: 1px solid #dce3ee;
  border-radius: 12px;
  background: #fff;
  color: #40506a;
  font-size: 24px;
  cursor: pointer;
}

.safety-modal__intro {
  margin: 14px 0 18px;
  color: #64718a;
  font-size: 13px;
  line-height: 1.55;
}

.safety-modal form,
.safety-modal label {
  display: grid;
  gap: 8px;
}

.safety-modal form {
  gap: 16px;
}

.safety-modal label span {
  color: #152f63;
  font-size: 13px;
  font-weight: 750;
}

.safety-modal select,
.safety-modal textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #d6deea;
  border-radius: 13px;
  background: #fff;
  color: #15233a;
  font: inherit;
}

.safety-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.safety-modal__actions button {
  min-height: 42px;
  padding: 0 17px;
  border-radius: 12px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
}

.safety-modal__cancel {
  border: 1px solid #d5deea;
  background: #fff;
  color: #42516a;
}

.safety-modal__submit {
  border: 0;
  background: #0b2e6b;
  color: #fff;
}

@media (max-width: 860px) {
  .chat-safety-actions span {
    display: none;
  }

  .chat-safety-actions button {
    width: 38px;
    padding: 0;
    justify-content: center;
  }
}