/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root {
  --color-primary: #47644A;
  --color-primary-dark: #5D6E5C;
  --color-primary-light: #E4E9E3;
  --color-secondary: #D1A980;
  --color-secondary-dark: #B89169;
  --color-secondary-light: #F7EFE6;
  --color-gray-50: #F8F8F8;
  --color-gray-100: #E5E0D8;
  --color-gray-200: #D4CDC1;
  --color-gray-400: #9C9485;
  --color-white: #FFFFFF;
  --color-text: #2D332D;
  --color-text-light: #5A615A;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 8px rgba(45, 51, 45, 0.06);
  --shadow-md: 0 8px 24px rgba(45, 51, 45, 0.08);
  --shadow-lg: 0 20px 40px rgba(116, 136, 115, 0.12);

  --container-width: 1180px;
  --transition: all 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', sans-serif;
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.text-accent { color: var(--color-primary); }

h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--color-text); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--sm { padding: 9px 18px; font-size: 0.85rem; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn--outline {
  border: 2px solid var(--color-gray-200);
  color: var(--color-text);
}
.btn--outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn--ghost { color: var(--color-text); }
.btn--ghost:hover { color: var(--color-primary); }

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
}
.btn--white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-full);
}
.badge--soft { background: var(--color-primary-light); color: var(--color-primary-dark); }

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-100);
}
.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
}
.navbar__logo-icon {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
}
.navbar__links { display: flex; align-items: center; gap: 14px; }

.navbar__links a:not(.btn) {
  font-weight: 500;
  color: var(--color-text-light);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

/* Al pasar el mouse: fondo verde claro */
.navbar__links a:not(.btn):hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Al hacer CLIC (mientras se presiona): se hunde y se pone verde */
.navbar__links a:not(.btn):active {
  transform: scale(0.94);
  background: var(--color-primary);
  color: var(--color-white);
}

/* Página actual: píldora verde rellena permanente */
.navbar__links a.active {
  color: var(--color-white);
  background: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.navbar__toggle { display: none; font-size: 1.4rem; }

@media (max-width: 900px) {
  .navbar__toggle { display: block; }
  .navbar__links {
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 20px 24px 30px;
    gap: 18px;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .navbar__links.open { display: flex; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero { padding: 90px 0 70px; overflow: hidden; }
.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}
.hero__title {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  margin: 20px 0;
  letter-spacing: -0.02em;
}
.hero__subtitle { color: var(--color-text-light); font-size: 1.08rem; max-width: 480px; margin-bottom: 32px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 36px; }
.hero__trust { display: flex; align-items: center; gap: 14px; color: var(--color-text-light); font-size: 0.9rem; }
.avatars { display: flex; }
.avatar-dot {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border: 2px solid var(--color-white);
  margin-left: -10px;
}
.avatar-dot:first-child { margin-left: 0; }

.hero__visual { position: relative; height: 420px; }
.hero-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 26px;
}
.hero-card--main {
  position: absolute;
  top: 10px; left: 10px; right: 40px;
  animation: floatUp 5s ease-in-out infinite;
}
.hero-card__header { display: flex; align-items: center; gap: 10px; color: var(--color-primary); font-weight: 600; margin-bottom: 14px; }
.hero-card--main h3 { font-size: 1.3rem; margin-bottom: 6px; }
.hero-card__tag { color: var(--color-text-light); font-size: 0.85rem; margin-bottom: 18px; }
.hero-card__progress { height: 10px; background: var(--color-gray-100); border-radius: var(--radius-full); overflow: hidden; }
.hero-card__progress-bar { height: 100%; background: linear-gradient(90deg, var(--color-primary), var(--color-secondary)); border-radius: var(--radius-full); }
.hero-card__percentage { display: block; margin-top: 10px; font-size: 0.85rem; color: var(--color-text-light); }

.hero-card--floating {
  position: absolute;
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px;
  font-size: 0.85rem;
}
.hero-card--floating i { font-size: 1.4rem; color: var(--color-secondary); }
.hero-card--floating strong { display: block; font-size: 1rem; }
.hero-card--floating span { color: var(--color-text-light); }
.hero-card--floating:nth-of-type(2) { bottom: 60px; left: -10px; animation: floatUp 4s ease-in-out infinite 0.4s; }
.hero-card--score { top: 250px; right: 0; animation: floatUp 4.5s ease-in-out infinite 0.8s; }
.hero-card--score i { color: #F59E0B; }

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { height: 320px; margin-top: 20px; }
}

/* =========================================================
   STATS BAR
   ========================================================= */
.stats { background: var(--color-primary); padding: 46px 0; }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
  color: var(--color-white);
}
.stat__number { font-size: 2.4rem; font-weight: 800; }
.stat__plus { font-size: 1.6rem; font-weight: 700; }
.stat p { opacity: 0.85; font-size: 0.95rem; margin-top: 4px; }

@media (max-width: 700px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

/* =========================================================
   SECTION HEADING (shared)
   ========================================================= */
.section-heading { text-align: center; max-width: 620px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block;
  color: var(--color-secondary-dark);
  background: var(--color-secondary-light);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-heading h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 14px; }
.section-heading p { color: var(--color-text-light); }

/* =========================================================
   BENEFITS
   ========================================================= */
.benefits { padding: 100px 0; background: var(--color-gray-50); }
.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.benefit-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.benefit-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.benefit-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.icon--blue { background: var(--color-primary-light); color: var(--color-primary); }
.icon--green { background: var(--color-secondary-light); color: var(--color-secondary-dark); }
.benefit-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.benefit-card p { color: var(--color-text-light); font-size: 0.92rem; }

@media (max-width: 960px) { .benefits__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .benefits__grid { grid-template-columns: 1fr; } }

/* =========================================================
   HOW IT WORKS
   ========================================================= */
.how { padding: 100px 0; }
.how__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}
.how-chart {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 28px;
}
.how__list { margin: 28px 0; display: flex; flex-direction: column; gap: 18px; }
.how__list li { display: flex; align-items: flex-start; gap: 16px; color: var(--color-text-light); }
.how__step {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}

@media (max-width: 960px) { .how__inner { grid-template-columns: 1fr; } .how__visual { order: 2; } }

/* =========================================================
   CTA
   ========================================================= */
.cta {
  background: linear-gradient(120deg, var(--color-primary), var(--color-secondary-dark));
  padding: 80px 0;
}
.cta__inner { text-align: center; color: var(--color-white); }
.cta__inner h2 { color: var(--color-white); font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
.cta__inner p { opacity: 0.9; margin-bottom: 28px; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: #0F172A; color: var(--color-gray-400); padding: 64px 0 0; }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer .navbar__logo { color: var(--color-white); }
.footer__brand p { margin: 16px 0 20px; font-size: 0.9rem; max-width: 280px; }
.footer__social { display: flex; gap: 12px; }
.footer__social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.footer__social a:hover { background: var(--color-primary); color: var(--color-white); }
.footer__col h4 { color: var(--color-white); font-size: 0.95rem; margin-bottom: 18px; }
.footer__col a { display: block; margin-bottom: 12px; font-size: 0.9rem; transition: var(--transition); }
.footer__col a:hover { color: var(--color-white); }
.footer__bottom { text-align: center; padding: 24px 0; font-size: 0.82rem; }

@media (max-width: 800px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   AUTH PAGES & FORMS
   ========================================================= */
.auth-section {
  padding: 80px 0;
  background: var(--color-gray-50);
  min-height: calc(100vh - 76px - 250px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.auth-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  max-width: 450px;
  width: 100%;
}
.auth-card__title {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.auth-card__subtitle {
  font-size: 0.95rem;
  color: var(--color-text-light);
  text-align: center;
  margin-bottom: 30px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

.form-group {
  margin-bottom: 22px;
}
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 8px;
  color: var(--color-text);
}
.input-group {
  position: relative;
}
.form-input {
  width: 100%;
  padding: 13px 18px;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: var(--transition);
}
.form-input::placeholder {
  color: var(--color-gray-400);
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(116, 136, 115, 0.12);
}
.input-group .form-input {
  padding-right: 48px;
}
.password-toggle {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}
.password-toggle:hover {
  color: var(--color-primary);
}
.form-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  font-size: 0.85rem;
}
.form-links a {
  color: var(--color-text-light);
  transition: var(--transition);
}
.form-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}
.btn--block {
  width: 100%;
}
.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--color-text-light);
}
.auth-footer a {
  color: var(--color-primary);
  font-weight: 600;
  transition: var(--transition);
}
.auth-footer a:hover {
  text-decoration: underline;
}

/* =========================================================
   STUDENT DASHBOARD
   ========================================================= */
.dashboard-section {
  padding: 60px 0;
  background: var(--color-gray-50);
  min-height: calc(100vh - 76px - 250px);
}
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
  flex-wrap: wrap;
  gap: 20px;
}
.dashboard-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
}
.dashboard-header p {
  color: var(--color-text-light);
  margin-top: 4px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.stat-card {
  background: var(--color-white);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--color-gray-100);
}
.stat-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.stat-card__icon--blue { background: var(--color-primary-light); color: var(--color-primary); }
.stat-card__icon--green { background: var(--color-secondary-light); color: var(--color-secondary-dark); }
.stat-card__icon--orange { background: #FEF3C7; color: #D97706; }
.stat-card__icon--red { background: #FEE2E2; color: #DC2626; }
.stat-card__info {
  display: flex;
  flex-direction: column;
}
.stat-card__value {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}
.stat-card__label {
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-weight: 500;
}
.dashboard-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr;
  gap: 30px;
  align-items: start;
}
.dashboard-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
  border: 1px solid var(--color-gray-100);
}
.dashboard-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}
.dashboard-card__title i {
  color: var(--color-primary);
}
.badges-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.badge-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
}
.badge-item__icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #FEF3C7;
  color: #D97706;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.badge-item__info {
  display: flex;
  flex-direction: column;
}
.badge-item__name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
}
.badge-item__date {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 2px;
}
.empty-state {
  text-align: center;
  padding: 30px 10px;
  color: var(--color-text-light);
  font-size: 0.92rem;
}
.empty-state i {
  font-size: 2.2rem;
  color: var(--color-gray-400);
  margin-bottom: 12px;
  display: block;
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
}
.history-item:hover {
  border-color: var(--color-primary-light);
  background: var(--color-gray-50);
}
.history-item__title {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-text);
}
.history-item__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 4px;
}
.history-item__score {
  font-weight: 700;
  font-size: 0.85rem;
  padding: 5px 12px;
  border-radius: var(--radius-full);
}
.score--high { background: var(--color-secondary-light); color: var(--color-secondary-dark); }
.score--medium { background: #FEF3C7; color: #D97706; }
.score--low { background: #FEE2E2; color: #DC2626; }

.rec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.rec-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-gray-100);
  display: flex;
  flex-direction: column;
}
.rec-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.rec-card__img {
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary-light), #BFDBFE);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  color: var(--color-primary);
  position: relative;
}
.rec-card__img-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-white);
  color: var(--color-text);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.rec-card__content {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.rec-card__tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-secondary-dark);
  margin-bottom: 6px;
}
.rec-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.7em;
}
.rec-card__action {
  margin-top: auto;
  width: 100%;
}

@media (max-width: 960px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .stats-grid { grid-template-columns: 1fr; }
  .rec-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   READINGS GALLERY & DETAIL
   ========================================================= */
.gallery-section {
  padding: 60px 0 80px;
  background: var(--color-gray-50);
  min-height: calc(100vh - 76px - 250px);
}
.gallery-header {
  margin-bottom: 36px;
}
.gallery-header h1 {
  font-size: 2.2rem;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.gallery-header p {
  color: var(--color-text-light);
}
.filters-row {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-search {
  flex-grow: 1;
  min-width: 280px;
  position: relative;
}
.filter-search i {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
}
.filter-search .form-input {
  padding-left: 48px;
}
.filter-control {
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-gray-200);
  background: var(--color-white);
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--color-text);
  outline: none;
  cursor: pointer;
  transition: var(--transition);
  min-width: 160px;
}
.filter-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(116, 136, 115, 0.12);
}
.readings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 48px;
}
.reading-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.reading-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.reading-card__img {
  height: 190px;
  background: linear-gradient(135deg, var(--color-primary-light), #93C5FD);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-primary);
  position: relative;
}
.reading-card__badges {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 8px;
}
.reading-card__badge {
  background: var(--color-white);
  color: var(--color-text);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.reading-card__badge--accent {
  background: var(--color-secondary);
  color: var(--color-white);
}
.reading-card__fav-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.reading-card__fav-btn:hover {
  transform: scale(1.1);
  color: #EF4444;
}
.reading-card__fav-btn.is-active {
  color: #EF4444;
}
.reading-card__content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.reading-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}
.reading-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
  color: var(--color-text);
}
.reading-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 22px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 4.6em;
}
.reading-card__footer {
  margin-top: auto;
  width: 100%;
}
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}
.pagination-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--color-gray-200);
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}
.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pagination-info {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-light);
}

/* READING DETAIL PAGE */
.detail-grid {
  display: grid;
  grid-template-columns: 1.7fr 0.8fr;
  gap: 40px;
  align-items: start;
}
.reading-article {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}
.reading-article__title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  color: var(--color-text);
}
.reading-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-gray-100);
  align-items: center;
}
.reading-article__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.reading-article__meta-item i {
  color: var(--color-primary);
}
.reading-article__content {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--color-text);
  margin-bottom: 40px;
}
.reading-article__content p {
  margin-bottom: 24px;
}
.vocabulary-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  position: sticky;
  top: 100px;
}
.vocabulary-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: 10px;
}
.vocabulary-card h3 i {
  color: var(--color-primary);
}
.vocab-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.vocab-item {
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-gray-200);
}
.vocab-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.vocab-word {
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--color-primary);
}
.vocab-meaning {
  font-size: 0.88rem;
  color: var(--color-text);
  margin-top: 4px;
  line-height: 1.45;
}
.vocab-example {
  font-size: 0.82rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-top: 6px;
  display: block;
  border-left: 2px solid var(--color-gray-200);
  padding-left: 8px;
}

/* QUIZ INTERACTIVO */
.quiz-section {
  margin-top: 48px;
  border-top: 1px solid var(--color-gray-200);
  padding-top: 48px;
}
.quiz-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}
.quiz-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}
.quiz-card__subtitle {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: 36px;
}
.quiz-locked-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--color-text-light);
}
.quiz-locked-state i {
  font-size: 3rem;
  color: var(--color-gray-400);
  margin-bottom: 18px;
  display: block;
}
.quiz-locked-state h3 {
  font-size: 1.25rem;
  color: var(--color-text);
  margin-bottom: 8px;
}
.quiz-locked-state p {
  margin-bottom: 24px;
  font-size: 0.92rem;
}
.quiz-question {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1.5px solid var(--color-gray-100);
}
.quiz-question:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 36px;
}
.quiz-question__text {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
  margin-bottom: 18px;
  display: flex;
  gap: 12px;
  line-height: 1.4;
}
.quiz-question__num {
  color: var(--color-primary);
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.quiz-option-label {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  cursor: pointer;
  transition: var(--transition);
  color: var(--color-text);
  user-select: none;
}
.quiz-option-label:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}
.quiz-option-label input {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.quiz-option-label.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.quiz-option-label.correct {
  border-color: var(--color-secondary);
  background: var(--color-secondary-light);
  color: var(--color-secondary-dark);
  font-weight: 600;
}
.quiz-option-label.incorrect {
  border-color: #EF4444;
  background: #FEE2E2;
  color: #DC2626;
  font-weight: 600;
}
.quiz-option-label.disabled {
  cursor: not-allowed;
  opacity: 0.8;
}
.quiz-option-label.disabled:hover {
  background: none;
  border-color: var(--color-gray-200);
}
.quiz-option-label.disabled.selected:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}
.quiz-option-label.disabled.correct:hover {
  background: var(--color-secondary-light);
  border-color: var(--color-secondary);
}
.quiz-option-label.disabled.incorrect:hover {
  background: #FEE2E2;
  border-color: #EF4444;
}
.quiz-explanation {
  background: var(--color-gray-50);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-primary);
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-top: 14px;
}
.quiz-explanation strong {
  color: var(--color-text);
  display: block;
  margin-bottom: 4px;
}
.quiz-results-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.quiz-results-summary h3 {
  color: var(--color-primary-dark);
  font-size: 1.25rem;
}
.quiz-results-summary__score {
  font-size: 2.2rem;
  font-weight: 800;
}

/* =========================================================
   GRAMMAR & VOCABULARY PRACTICES
   ========================================================= */
.practice-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.9fr;
  gap: 30px;
  align-items: start;
}
.practice-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.practice-nav-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  text-align: left;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
}
.practice-nav-btn:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
}
.practice-nav-btn.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}
.practice-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}
.practice-card h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}
.practice-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
}
.sentence-item {
  font-size: 1.05rem;
  line-height: 2.2;
  margin-bottom: 24px;
  color: var(--color-text);
}
.blank-input {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-gray-200);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  min-width: 140px;
  max-width: 220px;
  color: var(--color-text);
  background: var(--color-white);
}
.blank-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(116, 136, 115, 0.1);
}
.blank-input.correct {
  border-color: var(--color-secondary);
  background: var(--color-secondary-light);
  color: var(--color-secondary-dark);
}
.blank-input.incorrect {
  border-color: #EF4444;
  background: #FEE2E2;
  color: #DC2626;
}
.blank-input.disabled {
  opacity: 0.85;
}
.blank-correct-badge {
  display: inline-block;
  background: var(--color-secondary-light);
  color: var(--color-secondary-dark);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  margin-left: 8px;
  vertical-align: middle;
}

/* =========================================================
   HELP CENTER
   ========================================================= */
.help-grid {
  display: grid;
  grid-template-columns: 1.55fr 0.95fr;
  gap: 40px;
  align-items: start;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-gray-200);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
}
.faq-question:hover {
  background: var(--color-gray-50);
}
.faq-question i {
  font-size: 0.9rem;
  color: var(--color-text-light);
  transition: transform 0.3s ease;
}
.faq-item.open .faq-question i {
  transform: rotate(180deg);
  color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-answer-inner {
  padding: 0 24px 24px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-light);
}
.support-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}
.support-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}
.support-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}
.info-box {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-gray-100);
  font-size: 0.88rem;
  color: var(--color-text-light);
}
.info-box i {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-top: 2px;
}
.info-box a {
  font-weight: 600;
  color: var(--color-primary);
}
.info-box a:hover {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .help-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* =========================================================
   UTILITIES: loaders, alerts, dark mode hook
   ========================================================= */
.loader {
  width: 22px; height: 22px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert--success { background: var(--color-secondary-light); color: var(--color-secondary-dark); }
.alert--error { background: #FEE2E2; color: #DC2626; }

body.dark-mode {
  background: #0F172A;
  color: #E2E8F0;
}
body.dark-mode .navbar,
body.dark-mode .benefit-card,
body.dark-mode .hero-card,
body.dark-mode .how-chart,
body.dark-mode .auth-card {
  background: #1E293B;
  color: #E2E8F0;
}
body.dark-mode .auth-section {
  background: #0B0F19;
}
body.dark-mode .auth-card {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}
body.dark-mode .form-label {
  color: #E2E8F0;
}
body.dark-mode .form-input {
  background: #0F172A;
  border-color: #334155;
  color: #F8FAFC;
}
body.dark-mode .form-input::placeholder {
  color: #64748B;
}
body.dark-mode .form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(116, 136, 115, 0.2);
}
body.dark-mode .dashboard-section {
  background: #0B0F19;
}
body.dark-mode .stat-card,
body.dark-mode .dashboard-card,
body.dark-mode .rec-card {
  background: #1E293B;
  color: #E2E8F0;
  border-color: #334155;
}
body.dark-mode .stat-card__value,
body.dark-mode .dashboard-card__title,
body.dark-mode .rec-card__title,
body.dark-mode .badge-item__name,
body.dark-mode .history-item__title {
  color: #F8FAFC;
}
body.dark-mode .badge-item {
  background: #0F172A;
  border-color: #334155;
}
body.dark-mode .history-item {
  border-color: #334155;
}
body.dark-mode .history-item:hover {
  background: #1e293b66;
}
body.dark-mode .gallery-section {
  background: #0B0F19;
}
body.dark-mode .filter-control,
body.dark-mode .reading-card,
body.dark-mode .pagination-btn,
body.dark-mode .reading-article,
body.dark-mode .vocabulary-card,
body.dark-mode .quiz-card {
  background: #1E293B;
  color: #E2E8F0;
  border-color: #334155;
}
body.dark-mode .filter-control {
  color: #F8FAFC;
}
body.dark-mode .reading-card__title,
body.dark-mode .reading-article__title,
body.dark-mode .quiz-card h2,
body.dark-mode .quiz-question__text,
body.dark-mode .quiz-option-label,
body.dark-mode .quiz-explanation strong {
  color: #F8FAFC;
}
body.dark-mode .reading-card__badge,
body.dark-mode .reading-card__fav-btn {
  background: #0F172A;
  color: #E2E8F0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
body.dark-mode .vocab-item {
  border-bottom-color: #334155;
}
body.dark-mode .vocab-example {
  border-left-color: #475569;
}
body.dark-mode .quiz-question,
body.dark-mode .vocabulary-card h3 {
  border-bottom-color: #334155;
}
body.dark-mode .quiz-option-label {
  border-color: #334155;
}
body.dark-mode .quiz-option-label:hover {
  background: #0F172A;
}
body.dark-mode .quiz-option-label.selected {
  background: rgba(116, 136, 115, 0.15);
  border-color: var(--color-primary);
}
body.dark-mode .quiz-option-label.correct {
  background: rgba(22, 163, 74, 0.15);
  border-color: var(--color-secondary);
  color: #4ADE80;
}
body.dark-mode .quiz-option-label.incorrect {
  background: rgba(220, 38, 38, 0.15);
  border-color: #EF4444;
  color: #FCA5A5;
}
body.dark-mode .quiz-explanation {
  background: #0F172A;
  border-left-color: var(--color-primary);
}
body.dark-mode .practice-nav-btn {
  background: #1E293B;
  border-color: #334155;
  color: #E2E8F0;
}
body.dark-mode .practice-nav-btn:hover {
  background: #0F172A;
}
body.dark-mode .practice-nav-btn.active {
  background: rgba(116, 136, 115, 0.15);
  border-color: var(--color-primary);
  color: #A4B8A3;
}
body.dark-mode .practice-card {
  background: #1E293B;
  border-color: #334155;
  color: #E2E8F0;
}
body.dark-mode .practice-card h2 {
  color: #F8FAFC;
}
body.dark-mode .blank-input {
  background: #0F172A;
  border-color: #334155;
  color: #F8FAFC;
}
body.dark-mode .blank-input.correct {
  background: rgba(22, 163, 74, 0.15);
  border-color: var(--color-secondary);
  color: #4ADE80;
}
body.dark-mode .blank-input.incorrect {
  background: rgba(220, 38, 38, 0.15);
  border-color: #EF4444;
  color: #FCA5A5;
}
body.dark-mode .blank-correct-badge {
  background: rgba(22, 163, 74, 0.2);
  color: #4ADE80;
}
body.dark-mode .faq-item,
body.dark-mode .support-card {
  background: #1E293B;
  color: #E2E8F0;
  border-color: #334155;
}
body.dark-mode .faq-question {
  color: #F8FAFC;
}
body.dark-mode .faq-question:hover {
  background: #0F172A;
}
body.dark-mode .faq-answer-inner {
  color: #94A3B8;
}
body.dark-mode .support-card h3 {
  color: #F8FAFC;
}
body.dark-mode .info-box {
  border-top-color: #334155;
}






/* =========================================================
   MÓDULO DE ACTIVIDADES + PANEL ADMIN
   (añadido al design system existente)
   ========================================================= */

/* ---- Layout del panel admin ---- */
.admin-body { background: var(--color-gray-50); }
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: 250px;
  flex-shrink: 0;
  background: var(--color-white);
  border-right: 1px solid var(--color-gray-100);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.admin-sidebar__logo { margin-bottom: 28px; font-weight: 700; font-size: 1.15rem; display: flex; align-items: center; gap: 8px; }
.admin-sidebar__label { font-size: 0.7rem; letter-spacing: 1.5px; color: var(--color-gray-400); margin-bottom: 10px; padding-left: 12px; }
.admin-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.admin-nav__item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-weight: 500; font-size: 0.92rem;
  color: var(--color-text-light);
  text-align: left;
  transition: var(--transition);
}
.admin-nav__item:hover { background: var(--color-primary-light); color: var(--color-primary); }
.admin-nav__item.active { background: var(--color-primary); color: var(--color-white); }
.admin-sidebar__footer { border-top: 1px solid var(--color-gray-100); padding-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.admin-user { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 600; }

.admin-content { flex: 1; padding: 36px 40px; max-width: 1100px; }
.admin-content h1 { font-size: 1.7rem; margin-bottom: 4px; }
.admin-subtitle { color: var(--color-text-light); margin-bottom: 24px; }
.admin-section { display: none; }
.admin-section.active { display: block; }
.admin-section__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }

.admin-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: 22px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.admin-card h3 { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; font-size: 1.05rem; }

/* ---- Tarjetas de estadísticas ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm);
}
.stat-card i { font-size: 1.4rem; color: var(--color-primary); background: var(--color-primary-light); padding: 12px; border-radius: var(--radius-sm); }
.stat-card strong { display: block; font-size: 1.35rem; }
.stat-card span { font-size: 0.8rem; color: var(--color-text-light); }
.stat-card--warn i { color: var(--color-secondary-dark); background: var(--color-secondary-light); }

/* ---- Tablas ---- */
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th { text-align: left; padding: 10px 12px; color: var(--color-text-light); font-size: 0.78rem; letter-spacing: 0.5px; text-transform: uppercase; border-bottom: 2px solid var(--color-gray-100); }
.admin-table td { padding: 12px; border-bottom: 1px solid var(--color-gray-50); vertical-align: middle; }
.admin-table tr:hover td { background: var(--color-gray-50); }
.actions-cell { white-space: nowrap; }

/* ---- Etiquetas de estado ---- */
.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 600;
  background: var(--color-gray-100); color: var(--color-text-light);
}
.tag--green { background: #E3F1E4; color: #2E7D32; }
.tag--blue { background: #E3EDF7; color: #1565C0; }
.tag--yellow { background: #FBF3DC; color: #9A7B24; }
.tag--red { background: #FBE4E4; color: #C62828; }
.tag--gray { background: var(--color-gray-100); color: var(--color-gray-400); }
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #C62828; display: inline-block; margin-left: 4px; }

/* ---- Botones de icono ---- */
.btn-icon {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  transition: var(--transition);
}
.btn-icon:hover { background: var(--color-primary-light); color: var(--color-primary); }
.btn-icon--danger:hover { background: #FBE4E4; color: #C62828; }

/* ---- Modales ---- */
.modal {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(45, 51, 45, 0.45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
}
.modal[hidden] { display: none; }
.modal__box {
  background: var(--color-white);
  border-radius: var(--radius-md);
  width: 100%; max-width: 640px;
  padding: 26px;
  box-shadow: var(--shadow-lg);
}
.modal__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.modal__close { font-size: 1.1rem; color: var(--color-text-light); padding: 6px 10px; border-radius: var(--radius-sm); }
.modal__close:hover { background: var(--color-gray-50); }
.modal__actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; flex-wrap: wrap; }

/* ---- Formularios ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-field { display: flex; flex-direction: column; gap: 6px; font-size: 0.85rem; font-weight: 600; }
.form-field--full { grid-column: 1 / -1; }
.form-field input, .form-field select, .form-field textarea, .filter-bar input, .filter-bar select {
  padding: 10px 12px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit; font-size: 0.9rem;
  background: var(--color-white);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: 2px solid var(--color-primary-light); border-color: var(--color-primary); }
.form-check { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; font-weight: 500; }
.filter-bar { display: flex; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.filter-bar input { min-width: 260px; }

/* ---- Adjuntos ---- */
.attachment-list { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.attachment-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
}
.attachment-item a { color: var(--color-primary); font-weight: 500; display: flex; align-items: center; gap: 6px; }
.attachment-item small { color: var(--color-gray-400); margin-left: auto; }

/* ---- Detalle de revisión / respuestas ---- */
.answer-box {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin: 8px 0 14px;
  white-space: pre-wrap;
  font-size: 0.92rem;
}
.grade-detail p { margin-bottom: 6px; font-size: 0.92rem; }
.grade-result { text-align: center; }
.grade-result__score { font-size: 2.6rem; font-weight: 800; color: var(--color-primary); }
.grade-result__score small { font-size: 1.2rem; color: var(--color-gray-400); }

/* ---- Banners de estado (lado usuario) ---- */
.banner {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  font-size: 0.92rem;
}
.banner i { margin-top: 3px; }
.banner--blue { background: #E3EDF7; color: #1565C0; }
.banner--yellow { background: #FBF3DC; color: #9A7B24; }
.banner--red { background: #FBE4E4; color: #C62828; }

/* ---- Tarjetas de actividades (usuario) ---- */
.activities-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.activity-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex; flex-direction: column; gap: 10px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.activity-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.activity-card__head { display: flex; gap: 6px; flex-wrap: wrap; }
.activity-card h3 { font-size: 1.05rem; }
.activity-card p { font-size: 0.88rem; color: var(--color-text-light); flex: 1; }
.activity-card__meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.8rem; color: var(--color-text-light); }
.activity-card__meta i { color: var(--color-primary); margin-right: 4px; }
.activity-card__score { color: var(--color-primary); font-size: 0.9rem; }
.activity-card .btn { align-self: flex-start; }

/* ---- Gráfico simple de barras por estado ---- */
.status-chart { display: flex; flex-direction: column; gap: 12px; }
.status-bar { display: grid; grid-template-columns: 90px 1fr 40px; align-items: center; gap: 12px; font-size: 0.85rem; }
.status-bar__label { text-transform: capitalize; color: var(--color-text-light); }
.status-bar__track { background: var(--color-gray-100); border-radius: var(--radius-full); height: 12px; overflow: hidden; }
.status-bar__fill { height: 100%; border-radius: var(--radius-full); transition: width 0.5s ease; }
.status-bar__fill--enviada { background: #1565C0; }
.status-bar__fill--revisada { background: #D1A980; }
.status-bar__fill--calificada { background: var(--color-primary); }
.status-bar__fill--devuelta { background: #C62828; }

/* ---- Utilidades ---- */
.muted { color: var(--color-gray-400); font-size: 0.9rem; }
.container--narrow { max-width: 780px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--color-text-light); font-size: 0.9rem; margin-bottom: 16px; font-weight: 500; }
.back-link:hover { color: var(--color-primary); }

/* ---- Responsive del panel admin ---- */
@media (max-width: 860px) {
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 10px; }
  .admin-sidebar__logo { margin-bottom: 0; }
  .admin-sidebar__label { display: none; }
  .admin-nav { flex-direction: row; flex-wrap: wrap; }
  .admin-sidebar__footer { border-top: none; padding-top: 0; flex-direction: row; margin-left: auto; }
  .admin-content { padding: 24px 18px; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ---- Imágenes de portada de actividades ---- */
.activity-card { padding: 0; overflow: hidden; }
.activity-card > *:not(.activity-card__img) { margin-left: 20px; margin-right: 20px; }
.activity-card__img { width: 100%; height: 150px; overflow: hidden; background: var(--color-gray-100); }
.activity-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: var(--transition); }
.activity-card:hover .activity-card__img img { transform: scale(1.04); }
.activity-card__head { margin-top: 14px; }
.activity-card .btn { margin-bottom: 18px; }

.activity-detail__img { width: 100%; height: 220px; overflow: hidden; border-radius: var(--radius-sm); margin-bottom: 18px; background: var(--color-gray-100); }
.activity-detail__img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.title-cell { display: flex; align-items: center; gap: 12px; }
.table-thumb { width: 64px; height: 42px; object-fit: cover; border-radius: 8px; flex-shrink: 0; border: 1px solid var(--color-gray-100); }

/* ---- Constructores del panel admin (vocabulario y quiz) ---- */
.modal__box--wide { max-width: 820px; }
.builder-title { display: flex; align-items: center; gap: 8px; margin: 22px 0 10px; font-size: 1rem; }
.builder-title small { font-weight: 400; }
.vocab-row { display: grid; grid-template-columns: 1fr 1.4fr 1.6fr auto; gap: 8px; margin-bottom: 8px; }
.vocab-row input {
  padding: 9px 11px; border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm); font-family: inherit; font-size: 0.88rem;
}
.question-block {
  border: 1px solid var(--color-gray-100); border-radius: var(--radius-sm);
  padding: 14px; margin-bottom: 12px; background: var(--color-gray-50);
}
.question-block__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.question-block input[type="text"], .question-block select {
  width: 100%; padding: 9px 11px; border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm); font-family: inherit; font-size: 0.88rem; background: var(--color-white);
}
.q-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 10px 0; }
.q-option { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.85rem; }
@media (max-width: 700px) { .vocab-row, .q-options { grid-template-columns: 1fr; } }