/* =============================================
   ENGLISH UP! — css/profile.css
   Perfil del estudiante, badges, compañeros
   ============================================= */

/* ════════════════════════════════════════════
   PROFILE PAGE
   ════════════════════════════════════════════ */

.profile-page {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--sp-6) var(--sp-4) var(--sp-10);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.profile-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.profile-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Hero ──────────────────────────────────── */

.profile-hero {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-5);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-6);
  box-shadow: var(--shadow-sm);
}

.profile-avatar-wrap {
  position: relative;
  flex-shrink: 0;
}

.profile-avatar-lg {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 3px solid var(--color-primary);
  object-fit: cover;
  display: block;
}

.profile-avatar-edit {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: background 150ms;
}
.profile-avatar-edit:hover { background: var(--color-primary-dark, #7c3aed); }

.profile-hero-info {
  flex: 1;
  min-width: 0;
}

.profile-name-row {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.profile-name {
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  line-height: 1.2;
}

.profile-realname {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--weight-normal);
}

.profile-email {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  margin-top: var(--sp-1);
  overflow-wrap: break-word;
  word-break: break-all;
  min-width: 0;
}

.profile-nickname-row {
  margin-top: var(--sp-3);
}

/* XP level bar */

.profile-level-row {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
  flex-wrap: wrap;
}

.profile-level-badge {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  border-radius: var(--radius-full);
  padding: 2px var(--sp-3);
  white-space: nowrap;
}

.profile-xp-bar-wrap {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  min-width: 60px;
}

.profile-xp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #a78bfa);
  border-radius: var(--radius-full);
  transition: width 500ms ease;
}

.profile-xp-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  white-space: nowrap;
}

/* ── Stats grid ─────────────────────────────── */

.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
}

@media (max-width: 480px) {
  .profile-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.profile-stat-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-4) var(--sp-3);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 150ms, box-shadow 150ms;
}

.profile-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.profile-stat-icon {
  font-size: 1.75rem;
  margin-bottom: var(--sp-1);
}

.profile-stat-value {
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  line-height: 1.1;
}

.profile-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: 2px;
}

/* ── Cards ──────────────────────────────────── */

.profile-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}

.profile-card-muted {
  opacity: 0.7;
}

.profile-card-title {
  font-size: var(--text-base);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--sp-4);
}

/* ── Badges grid ────────────────────────────── */

.profile-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: var(--sp-3);
}

@media (max-width: 640px) {
  .profile-badges-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.profile-badge-card {
  border-radius: var(--radius-xl);
  padding: var(--sp-4) var(--sp-3);
  text-align: center;
  border: 1.5px solid var(--color-border);
  transition: transform 150ms, box-shadow 150ms;
  position: relative;
}

.profile-badge-card.earned {
  background: linear-gradient(135deg, #fef9c3, #fef3c7);
  border-color: #fbbf24;
}

.profile-badge-card.locked {
  background: var(--color-bg);
  opacity: 0.55;
  filter: grayscale(0.6);
}

.profile-badge-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.profile-badge-emoji {
  font-size: 2rem;
  margin-bottom: var(--sp-2);
}

.profile-badge-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: 2px;
}

.profile-badge-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

.profile-badge-earned-tag {
  margin-top: var(--sp-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: #059669;
}

.profile-badge-locked-tag {
  margin-top: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ── Classroom info ─────────────────────────── */

.classroom-info-row {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
}

.classroom-badge-big {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.classroom-name-big {
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
}

.classroom-desc-sm {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.classroom-members-count {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  margin-top: var(--sp-1);
}

.profile-see-classmates {
  width: 100%;
}

/* ── Footer ─────────────────────────────────── */

.profile-footer {
  display: flex;
  justify-content: center;
  padding-top: var(--sp-2);
}

.btn-danger-outline {
  background: transparent;
  border: 2px solid #ef4444;
  color: #ef4444;
  border-radius: var(--radius-full);
  padding: var(--sp-2) var(--sp-6);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  cursor: pointer;
  transition: background 150ms, color 150ms;
}
.btn-danger-outline:hover {
  background: #ef4444;
  color: #fff;
}

/* ── Nickname input ─────────────────────────── */

.form-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
  transition: border-color 150ms;
  box-sizing: border-box;
}
.form-input:focus { border-color: var(--color-primary); }

/* ════════════════════════════════════════════
   CLASSMATES PAGE
   ════════════════════════════════════════════ */

.classmates-page {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--sp-6) var(--sp-4) var(--sp-10);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.classmates-header {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.classmates-classroom-info {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.classmates-classroom-emoji {
  font-size: 2rem;
  flex-shrink: 0;
}

.classmates-classroom-info h2 {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  line-height: 1.2;
}

.classmates-classroom-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.classmates-section-title {
  font-size: var(--text-base);
  font-weight: var(--weight-extrabold);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.classmates-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

/* ── Member card ────────────────────────────── */

.classmate-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  box-shadow: var(--shadow-sm);
  transition: transform 150ms, box-shadow 150ms;
  position: relative;
}

.classmate-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.classmate-card-me {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 5%, var(--color-surface));
}

.classmate-rank {
  min-width: 36px;
  text-align: center;
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.classmate-rank.top-1,
.classmate-rank.top-2,
.classmate-rank.top-3 {
  font-size: 1.5rem;
}

.classmate-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  object-fit: cover;
  flex-shrink: 0;
}

.classmate-info {
  flex: 1;
  min-width: 0;
}

.classmate-name {
  font-size: var(--text-base);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.classmate-me-tag {
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 15%, transparent);
  border-radius: var(--radius-full);
  padding: 1px var(--sp-2);
}

.classmate-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.classmate-badges {
  margin-top: var(--sp-1);
  font-size: 1rem;
  display: flex;
  gap: var(--sp-1);
}

/* ════════════════════════════════════════════
   EMPTY STATE
   ════════════════════════════════════════════ */

.empty-state {
  text-align: center;
  padding: var(--sp-12) var(--sp-4);
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--sp-3);
}

.empty-state h3 {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--sp-2);
}

.empty-state p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ════════════════════════════════════════════
   BUTTONS (extras)
   ════════════════════════════════════════════ */

.btn-xs {
  padding: var(--sp-1) var(--sp-3);
  font-size: var(--text-xs);
  border-radius: var(--radius-full);
}

.btn-sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--text-sm);
}

/* ════════════════════════════════════════════
   TEACHER: CLASSROOMS TAB
   ════════════════════════════════════════════ */

.classrooms-tab {
  padding: var(--sp-4) 0;
}

.classrooms-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-5);
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.classrooms-toolbar h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
}

.classrooms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-4);
}

.classroom-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
  transition: transform 150ms, box-shadow 150ms;
  cursor: pointer;
  overflow: hidden;
  min-width: 0;
}

.classroom-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.classroom-card-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.classroom-card-emoji {
  font-size: 2rem;
  flex-shrink: 0;
}

.classroom-card-title {
  font-size: var(--text-base);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
}

.classroom-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--sp-3);
  line-height: 1.5;
}

.classroom-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  flex-wrap: wrap;
  min-width: 0;
}

.classroom-card-count {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  flex: 1;
  min-width: 0;
}

.classroom-card-actions {
  display: flex;
  gap: var(--sp-2);
  flex-shrink: 0;
}

/* Classroom form */
.classroom-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.classroom-form label {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text-muted);
  display: block;
  margin-bottom: var(--sp-1);
}

.classroom-emoji-picker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}

.classroom-emoji-opt {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 150ms, background 150ms;
}
.classroom-emoji-opt.selected,
.classroom-emoji-opt:hover {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

/* Members in classroom modal */
.classroom-members-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  max-height: 320px;
  overflow-y: auto;
}

.classroom-member-row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.classroom-member-name {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

.classroom-member-xp {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}