/* ===========================================================
   GEMA Chatbot — estilos institucionales
   Paleta: azul oscuro, blanco, acentos dorado y azul claro.
   =========================================================== */

:root {
  --c-blue-900: #081f42;
  --c-blue-800: #0b2d5b;
  --c-blue-700: #123a72;
  --c-blue-600: #1e4d8c;
  --c-blue-400: #4a90d9;
  --c-blue-100: #e6eef8;
  --c-blue-50: #f2f6fb;

  --c-gold-600: #b8923d;
  --c-gold-500: #c9a961;
  --c-gold-300: #e8d9a8;

  --c-ink: #111827;
  --c-ink-soft: #4b5563;
  --c-muted: #6b7280;
  --c-line: #dbe3ee;
  --c-bg: #f5f7fa;
  --c-white: #ffffff;

  --shadow-sm: 0 1px 2px rgba(11, 45, 91, 0.06);
  --shadow-md: 0 4px 12px rgba(11, 45, 91, 0.08);
  --shadow-lg: 0 10px 30px rgba(11, 45, 91, 0.12);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --header-h: 96px;
  --footer-h: 44px;
  --content-max: 900px;
}

@media (max-width: 720px) {
  :root {
    --header-h: 72px;
    --footer-h: 52px;
  }
}

/* ---------- Reset mínimo ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  overflow-x: hidden;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: 0;
  background: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--c-gold-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: var(--c-blue-800);
  color: var(--c-white);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}

/* ---------- Header ---------- */
.site-header {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px 24px;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
  min-width: 0;
}

.site-header__logo {
  height: 64px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  flex: 0 1 auto;
  min-width: 0;
}

.site-header__brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  margin-left: auto;
  text-align: right;
  border-left: 2px solid var(--c-blue-100);
  padding-left: 20px;
}

.site-header__brand-name {
  font-size: 28px;
  font-weight: 700;
  color: var(--c-blue-800);
  letter-spacing: 0.02em;
}

.site-header__brand-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-top: 4px;
}

@media (max-width: 720px) {
  .site-header__inner {
    padding: 12px 16px;
    gap: 12px;
  }
  .site-header__logo {
    height: 44px;
  }
  .site-header__brand {
    padding-left: 12px;
  }
  .site-header__brand-name {
    font-size: 20px;
  }
  .site-header__brand-tag {
    font-size: 10px;
    letter-spacing: 0.1em;
  }
}

@media (max-width: 560px) {
  .site-header__inner {
    padding: 10px 12px;
    gap: 10px;
  }
  .site-header__logo {
    height: 36px;
  }
  .site-header__brand {
    padding-left: 10px;
  }
  .site-header__brand-name {
    font-size: 18px;
  }
  .site-header__brand-tag {
    display: none;
  }
}

/* ---------- Chat ---------- */
.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 24px 24px 0;
  min-height: 0;
}

.chat__scroll {
  flex: 1;
  overflow-y: auto;
  padding: 4px 4px 16px;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chat__scroll::-webkit-scrollbar {
  width: 10px;
}
.chat__scroll::-webkit-scrollbar-thumb {
  background: var(--c-blue-100);
  border-radius: var(--radius-pill);
}
.chat__scroll::-webkit-scrollbar-thumb:hover {
  background: var(--c-blue-400);
}

.chat__actions {
  position: sticky;
  bottom: 0;
  padding: 16px 0 24px;
  background: linear-gradient(
    to bottom,
    rgba(245, 247, 250, 0) 0%,
    var(--c-bg) 28%
  );
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-start;
}

@media (max-width: 720px) {
  .chat {
    padding: 16px 14px 0;
  }
  .chat__actions {
    padding: 12px 0 16px;
  }
}

/* ---------- Mensajes ---------- */
.msg {
  display: flex;
  gap: 12px;
  align-items: flex-end;
  max-width: 100%;
  min-width: 0;
  animation: msg-in 0.28s ease-out both;
}

@keyframes msg-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.msg--gema {
  justify-content: flex-start;
}
.msg--user {
  justify-content: flex-end;
  flex-direction: row-reverse;
}

.msg__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: var(--c-blue-800);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--c-white);
  outline: 1px solid var(--c-blue-100);
}

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

.msg--user .msg__avatar {
  background: var(--c-gold-500);
  color: var(--c-blue-900);
}

.msg__bubble {
  flex: 1 1 0;
  min-width: 0;
  max-width: 560px;
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  font-size: 16px;
  line-height: 1.55;
  box-shadow: var(--shadow-sm);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.msg--gema .msg__bubble {
  background: var(--c-white);
  color: var(--c-ink);
  border: 1px solid var(--c-line);
  border-bottom-left-radius: 6px;
}

.msg--user .msg__bubble {
  background: var(--c-blue-800);
  color: var(--c-white);
  border-bottom-right-radius: 6px;
}

.msg__bubble p {
  margin: 0;
}
.msg__bubble p + p {
  margin-top: 10px;
}
.msg__bubble strong {
  color: var(--c-blue-800);
}
.msg--user .msg__bubble strong {
  color: var(--c-gold-300);
}

.msg__sender {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  margin-bottom: 6px;
}
.msg--user .msg__sender {
  color: var(--c-gold-300);
}

/* ---------- Typing indicator ---------- */
.typing {
  display: inline-flex;
  gap: 4px;
  padding: 4px 2px;
}
.typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-blue-400);
  animation: typing 1.1s infinite ease-in-out;
}
.typing span:nth-child(2) {
  animation-delay: 0.15s;
}
.typing span:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes typing {
  0%, 80%, 100% {
    transform: translateY(0);
    opacity: 0.4;
  }
  40% {
    transform: translateY(-4px);
    opacity: 1;
  }
}

/* ---------- Botones de acción (categorías / preguntas) ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-blue-800);
  background: var(--c-white);
  border: 1.5px solid var(--c-blue-100);
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
  min-height: 48px;
  text-align: left;
}

.chip:hover {
  background: var(--c-blue-50);
  border-color: var(--c-blue-400);
  box-shadow: var(--shadow-md);
}
.chip:active {
  transform: translateY(1px);
}

.chip--category {
  padding: 14px 20px;
  font-size: 15px;
  background: linear-gradient(135deg, var(--c-blue-800), var(--c-blue-600));
  color: var(--c-white);
  border: 1.5px solid transparent;
}
.chip--category:hover {
  background: linear-gradient(135deg, var(--c-blue-700), var(--c-blue-400));
  border-color: var(--c-gold-500);
  color: var(--c-white);
}

.chip--question {
  background: var(--c-white);
  color: var(--c-ink);
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  max-width: 100%;
  white-space: normal;
  line-height: 1.4;
}
.chip--question::before {
  content: "›";
  color: var(--c-gold-600);
  font-weight: 700;
  font-size: 18px;
  margin-right: 4px;
}
.chip--question:hover {
  border-color: var(--c-gold-500);
  background: #fffdf7;
}

.chip--nav {
  background: transparent;
  border: 1.5px solid var(--c-blue-400);
  color: var(--c-blue-700);
}
.chip--nav:hover {
  background: var(--c-blue-100);
}

.chip__icon {
  font-size: 18px;
  line-height: 1;
}

/* Grid para categorías */
.chat__actions[data-layout="categories"] {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.chat__actions[data-layout="categories"] .chip--category {
  justify-content: flex-start;
  min-width: 0;
  width: 100%;
}
@media (min-width: 640px) {
  .chat__actions[data-layout="categories"] {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
}
@media (min-width: 1024px) {
  .chat__actions[data-layout="categories"] {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Lista para preguntas */
.chat__actions[data-layout="questions"] {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat__actions[data-layout="questions"] .chip--question {
  width: 100%;
  justify-content: flex-start;
}

/* Navegación después de respuesta */
.chat__actions[data-layout="nav"] {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-blue-900);
  color: rgba(255, 255, 255, 0.7);
  text-align: center;
  font-size: 12px;
  padding: 14px 16px;
  letter-spacing: 0.02em;
}

/* ---------- Kiosco (pantallas muy grandes) ---------- */
@media (min-width: 1200px) {
  :root {
    --content-max: 1000px;
    --header-h: 112px;
  }
  body {
    font-size: 17px;
  }
  .site-header__logo {
    height: 76px;
  }
  .site-header__brand-name {
    font-size: 32px;
  }
  .msg__bubble {
    font-size: 17px;
    padding: 16px 22px;
  }
  .chip {
    padding: 14px 22px;
    font-size: 15px;
    min-height: 56px;
  }
  .chip--question {
    font-size: 16px;
  }
}

@media (min-width: 1600px) {
  :root {
    --content-max: 1100px;
  }
  body {
    font-size: 18px;
  }
}

/* ---------- Reducción de movimiento ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}