:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --bg-secondary: var(--tg-theme-secondary-bg-color, #f4f4f5);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --text-hint: var(--tg-theme-hint-color, #737373);
  --accent: var(--tg-theme-button-color, #00d4ff);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --border: rgba(0,0,0,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow: 0 2px 8px rgba(0,0,0,0.07);
  --ada-dark: #0a1628;
  --ada-mid: #1a3a5c;
  --ada-cyan: #00d4ff;
  --ada-text: #c0c8d8;
}

/* Modo oscuro (contexto fuera de Telegram) */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--tg-theme-bg-color, #18181b);
    --bg-secondary: var(--tg-theme-secondary-bg-color, #27272a);
    --text: var(--tg-theme-text-color, #f4f4f5);
    --text-hint: var(--tg-theme-hint-color, #a1a1aa);
    --border: rgba(255,255,255,0.07);
    --shadow: 0 2px 8px rgba(0,0,0,0.35);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

/* ─── Splash Screen ──────────────────────── */
.splash-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(145deg, #0d1f3c 0%, #0a1628 60%, #061020 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 200;
  transition: opacity 0.4s ease;
}

.splash-logo {
  width: 100px;
  height: 100px;
  animation: pulse 2.2s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(0,212,255,0.35));
}

.splash-name {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #ffffff;
  margin-top: 4px;
}

.splash-sub {
  font-size: 12px;
  color: #7a9ab8;
  text-align: center;
  max-width: 220px;
  line-height: 1.5;
}

/* ─── Header ─────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  height: 54px;
}

.header-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.header-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.2px;
}

.header-plan-pill {
  font-size: 10px;
  font-weight: 700;
  color: var(--ada-cyan, #00d4ff);
  background: rgba(0,212,255,0.1);
  border-radius: 6px;
  padding: 1px 6px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  align-self: flex-start;
}

.header-plan-pill.premium { color: #7c3aed; background: rgba(124,58,237,0.1); }
.header-plan-pill.premium_plus { color: #d97706; background: rgba(217,119,6,0.1); }

.header-icon { color: var(--accent); font-size: 18px; }

.header-logo {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  flex-shrink: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-hint);
  cursor: pointer;
  padding: 7px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.btn-icon:hover { background: var(--bg-secondary); color: var(--text); }

/* Chat area */
.chat-area {
  position: fixed;
  top: 54px;
  bottom: 72px;
  left: 0; right: 0;
  overflow-y: auto;
  padding: 16px 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}

/* Welcome */
.welcome-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
  padding: 24px 20px;
  gap: 10px;
}

.welcome-icon {
  font-size: 44px;
  color: var(--accent);
  margin-bottom: 4px;
  animation: pulse 3s ease-in-out infinite;
}

.welcome-logo {
  width: 80px;
  height: 80px;
  margin-bottom: 4px;
  animation: pulse 3s ease-in-out infinite;
  filter: drop-shadow(0 0 14px rgba(0,212,255,0.25));
}

.welcome-state h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.welcome-state p {
  color: var(--text-hint);
  font-size: 14px;
  max-width: 260px;
  line-height: 1.5;
}

.welcome-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 4px;
}

.chip {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  user-select: none;
}

.chip:hover, .chip:active {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

/* Mensajes */
.message {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.65;
  word-break: break-word;
  animation: fadeIn 0.2s ease;
}

.message.user {
  background: var(--accent);
  color: var(--accent-text);
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  box-shadow: var(--shadow);
}

.message.assistant {
  background: var(--bg-secondary);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
  white-space: pre-wrap;
}

/* Typing */
.typing {
  display: flex;
  gap: 5px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.typing span {
  width: 7px; height: 7px;
  background: var(--text-hint);
  border-radius: 50%;
  animation: bounce 1.2s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }

/* Content cards */
.content-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  animation: fadeIn 0.3s ease;
}

.content-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.card-platform {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.1px;
}

.btn-copy-card {
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, background 0.2s;
  white-space: nowrap;
}
.btn-copy-card:active { opacity: 0.75; }
.btn-copy-card.copied { background: #16a34a; }

.card-body {
  padding: 13px 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow-y: auto;
}

/* Card image */
.card-image {
  position: relative;
  margin: 0 14px 13px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-secondary);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-image.loading {
  color: var(--text-hint);
  font-size: 13px;
  gap: 8px;
}
.card-image.loading::before {
  content: '';
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.card-image.error { color: var(--text-hint); font-size: 12px; padding: 8px; }
.card-image img {
  width: 100%; height: auto;
  display: block;
  border-radius: 10px;
}
.card-image .img-badge {
  position: absolute; top: 8px; right: 8px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

/* Upgrade card */
.upgrade-card {
  background: var(--bg-secondary);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  text-align: center;
  animation: fadeIn 0.3s ease;
}

.upgrade-icon { font-size: 32px; }
.upgrade-card h3 { font-size: 15px; font-weight: 700; }
.upgrade-card p  { font-size: 13px; color: var(--text-hint); }
.upgrade-note    { font-size: 11px !important; color: var(--text-hint); margin-top: -4px; }

.btn-upgrade {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  letter-spacing: -0.1px;
}
.btn-upgrade:active { opacity: 0.85; }
.btn-upgrade.premium { background: linear-gradient(135deg, #667eea, #764ba2); }

/* Upgrade plan block (Stars + Tarjeta) */
.upgrade-plan-block {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.upgrade-plan-name {
  font-size: 14px;
  font-weight: 700;
  text-align: left;
}

.upgrade-plan-desc {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-hint);
}

.upgrade-plan-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn-pay-stars {
  padding: 10px 8px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}
.btn-pay-stars:active { opacity: 0.85; transform: scale(0.97); }

.btn-pay-card {
  padding: 10px 8px;
  background: linear-gradient(135deg, #0a1628, #1a3a5c);
  color: #00d4ff;
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  white-space: nowrap;
}
.btn-pay-card:active { opacity: 0.85; transform: scale(0.97); }

/* Install banner (iOS) */
.install-banner {
  position: fixed;
  bottom: 72px;
  left: 12px; right: 12px;
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  z-index: 20;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  animation: slideUp 0.3s ease;
}

.install-banner-close {
  background: none;
  border: none;
  color: var(--bg);
  font-size: 16px;
  cursor: pointer;
  opacity: 0.7;
  flex-shrink: 0;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: rgba(0,0,0,0.8);
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  white-space: nowrap;
  z-index: 100;
  pointer-events: none;
}
.toast-show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Input */
.input-area {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 8px 12px;
  z-index: 10;
}

.posts-counter {
  font-size: 11px;
  color: var(--text-hint);
  text-align: center;
  padding-bottom: 5px;
}

.input-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

textarea {
  flex: 1;
  resize: none;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 15px;
  font-family: var(--font);
  background: var(--bg-secondary);
  color: var(--text);
  outline: none;
  max-height: 100px;
  overflow-y: auto;
  transition: border-color 0.15s;
  line-height: 1.4;
}
textarea:focus { border-color: var(--accent); }
textarea::placeholder { color: var(--text-hint); }

/* Botón imagen */
.btn-image {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  color: var(--text-hint);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn-image.has-credits {
  border-color: #7c3aed;
  color: #7c3aed;
}

.btn-image:active { opacity: 0.75; }

/* Plan chip en counter */
.plan-chip {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  padding: 1px 6px;
  border-radius: 6px;
  background: rgba(59,130,246,0.1);
  color: var(--accent);
  margin-right: 4px;
}

.plan-chip.premium { background: rgba(124,58,237,0.1); color: #7c3aed; }
.plan-chip.premium_plus { background: rgba(217,119,6,0.1); color: #d97706; }

/* ─── Skeleton Loading ─────────────────────── */

.skeleton-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 4px 0;
}

.skeleton-block {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-line {
  height: 12px;
  background: linear-gradient(90deg, var(--border) 25%, var(--bg) 50%, var(--border) 75%);
  background-size: 200% 100%;
  border-radius: 6px;
  animation: shimmer 1.4s infinite;
}

.skeleton-line.medium { width: 70%; }
.skeleton-line.short  { width: 45%; }
.skeleton-line.xshort { width: 30%; height: 8px; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Panel de Aprendizaje ─────────────────── */

.learn-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.learn-tabs::-webkit-scrollbar { display: none; }

.learn-tab {
  flex-shrink: 0;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-hint);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.learn-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.learn-lesson {
  animation: fadeIn 0.2s ease;
}

.learn-lesson-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.learn-lesson-sub {
  font-size: 13px;
  color: var(--text-hint);
  margin-top: 2px;
}

.learn-lesson-body {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.learn-example-box {
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.6;
  font-style: italic;
  color: var(--text);
}

.learn-example-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 6px;
  font-style: normal;
}

/* Tabla de plataformas */
.learn-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.learn-table th {
  text-align: left;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-hint);
  border-bottom: 1.5px solid var(--border);
}

.learn-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.4;
}

.learn-table tr:last-child td { border-bottom: none; }
.learn-table td:first-child { font-weight: 600; white-space: nowrap; }

.btn-try-now {
  width: 100%;
  padding: 13px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  letter-spacing: -0.1px;
}

.btn-try-now:active { opacity: 0.85; transform: scale(0.98); }

/* Sección comunidad en referral panel */
.community-card {
  background: linear-gradient(135deg, #1d4ed8, #4338ca);
  border-radius: var(--radius);
  padding: 16px;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.community-card-title {
  font-size: 15px;
  font-weight: 700;
}

.community-card-desc {
  font-size: 13px;
  opacity: 0.88;
  line-height: 1.5;
}

.btn-join-community {
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  transition: background 0.15s;
}

.btn-join-community:hover { background: rgba(255,255,255,0.28); }

.btn-send {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity 0.15s, transform 0.1s;
  box-shadow: 0 2px 8px rgba(59,130,246,0.35);
}
.btn-send:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }
.btn-send:not(:disabled):active { transform: scale(0.93); }

/* ─── Panel de Gamificación ──────────────── */

/* Level card */
.level-card {
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-radius: var(--radius);
  padding: 16px;
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.level-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.level-badge {
  font-size: 13px;
  font-weight: 800;
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 20px;
}
.level-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
}
.level-xp-label {
  font-size: 12px;
  opacity: 0.85;
  margin-top: -2px;
}
.xp-bar-bg {
  background: rgba(255,255,255,0.25);
  border-radius: 10px;
  height: 8px;
  overflow: hidden;
}
.xp-bar-fill {
  height: 100%;
  background: #fff;
  border-radius: 10px;
  transition: width 0.5s ease;
}
.xp-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  opacity: 0.8;
}

/* Challenges */
.game-section-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-hint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.challenge-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
}
.challenge-card.completed {
  border-color: #16a34a;
  background: rgba(22,163,74,0.06);
}
.challenge-card.claimable {
  border-color: var(--accent);
  background: rgba(59,130,246,0.06);
}
.challenge-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.challenge-name {
  font-size: 14px;
  font-weight: 700;
  flex: 1;
}
.challenge-status-icon { font-size: 16px; flex-shrink: 0; }
.challenge-desc {
  font-size: 12px;
  color: var(--text-hint);
}
.challenge-progress-bar {
  background: var(--border);
  border-radius: 6px;
  height: 6px;
  overflow: hidden;
}
.challenge-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 6px;
  transition: width 0.4s ease;
}
.challenge-progress-fill.done { background: #16a34a; }
.challenge-progress-label {
  font-size: 11px;
  color: var(--text-hint);
  display: flex;
  justify-content: space-between;
}
.challenge-reward {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
}
.btn-claim-reward {
  width: 100%;
  padding: 9px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-claim-reward:active { opacity: 0.8; }

/* Ranking */
.ranking-list { display: flex; flex-direction: column; gap: 4px; }
.ranking-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
}
.ranking-item.me { background: var(--bg-secondary); font-weight: 700; }
.ranking-pos { width: 24px; text-align: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.ranking-name { flex: 1; }
.ranking-posts { font-size: 12px; color: var(--text-hint); white-space: nowrap; }
.ranking-level-badge {
  font-size: 10px;
  font-weight: 700;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 8px;
  color: var(--text-hint);
}
.ranking-divider {
  text-align: center;
  font-size: 11px;
  color: var(--text-hint);
  padding: 4px 0;
}
.ranking-my-pos {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  font-size: 13px;
}
.ranking-my-pos-num { font-size: 20px; font-weight: 800; color: var(--accent); }

/* ─── Panel de Referidos ─────────────────── */

.referral-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 30;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.referral-backdrop.open {
  opacity: 1;
  pointer-events: all;
}

.referral-panel {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg);
  border-radius: 20px 20px 0 0;
  z-index: 40;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  box-shadow: 0 -4px 30px rgba(0,0,0,0.15);
}
.referral-panel.open {
  transform: translateY(0);
}

.referral-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
  font-weight: 700;
  font-size: 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1;
}

.referral-panel-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 32px;
}

.referral-loading {
  text-align: center;
  color: var(--text-hint);
  padding: 24px;
  font-size: 14px;
}

/* Código */
.referral-code-block {
  background: var(--bg-secondary);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.referral-code-label {
  font-size: 11px;
  color: var(--text-hint);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.referral-code-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--accent);
}

/* Premium activo */
.referral-premium-badge {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

/* Botón compartir link */
.btn-share-link {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity 0.15s;
}
.btn-share-link:active { opacity: 0.82; }

/* Stats */
.referral-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.referral-stat-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}
.referral-stat-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
}
.referral-stat-desc {
  font-size: 11px;
  color: var(--text-hint);
  margin-top: 2px;
}

/* Tiers */
.referral-tiers-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-hint);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.referral-tier {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}
.referral-tier:last-child { border-bottom: none; }
.referral-tier-icon { font-size: 16px; flex-shrink: 0; }
.referral-tier-text { flex: 1; }
.referral-tier-badge {
  font-size: 11px;
  font-weight: 700;
  background: var(--accent);
  color: var(--accent-text);
  padding: 3px 8px;
  border-radius: 10px;
}
.referral-tier-badge.done { background: #16a34a; }
.referral-tier-badge.next { background: #f59e0b; }

/* Input manual de código */
.referral-claim-section {
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.referral-claim-title {
  font-size: 13px;
  color: var(--text-hint);
  margin-bottom: 8px;
}
.referral-claim-row {
  display: flex;
  gap: 8px;
}
.referral-claim-input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: var(--bg-secondary);
  color: var(--text);
  outline: none;
}
.referral-claim-input:focus { border-color: var(--accent); }
.btn-claim-code {
  padding: 9px 16px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-claim-code:hover { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

/* ─── Panel de Estadísticas ──────────────── */

.stats-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stats-hero-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  text-align: center;
}

.stats-hero-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
}

.stats-hero-label {
  font-size: 11px;
  color: var(--text-hint);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  font-weight: 600;
}

.stats-hero-sub {
  font-size: 10px;
  color: var(--text-hint);
  margin-top: 3px;
}

/* Platform bars */
.platform-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.platform-bar-label {
  width: 95px;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12.5px;
}

.platform-bar-bg {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.platform-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 6px;
  transition: width 0.5s ease;
}

.platform-bar-count {
  font-size: 12px;
  color: var(--text-hint);
  font-weight: 600;
  width: 26px;
  text-align: right;
  flex-shrink: 0;
}

/* Achievement list */
.stats-achievement-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}

.stats-achievement-row:last-child { border-bottom: none; }
.stats-achievement-icon { font-size: 17px; flex-shrink: 0; }
.stats-achievement-label { flex: 1; color: var(--text-hint); font-size: 12.5px; }
.stats-achievement-value { font-weight: 700; font-size: 13.5px; }

/* Insight cards */
.stats-insight-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border-left: 3px solid var(--accent);
  line-height: 1.55;
}

.stats-insight-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* Streak fire animation */
@keyframes flicker {
  0%, 100% { transform: scale(1) rotate(-2deg); }
  25%       { transform: scale(1.1) rotate(2deg); }
  50%       { transform: scale(0.95) rotate(-1deg); }
  75%       { transform: scale(1.05) rotate(1deg); }
}

.streak-fire {
  display: inline-block;
  animation: flicker 1.5s ease-in-out infinite;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-7px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ─── Panel de Soporte ───────────────────────── */

.support-block {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.support-block-icon {
  font-size: 24px;
  flex-shrink: 0;
  line-height: 1;
}

.support-block-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.support-block-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}

.support-link {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
}
.support-link:hover { text-decoration: underline; }

.support-faq {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 6px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  cursor: pointer;
}

.faq-item summary {
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: '▶ '; font-size: 10px; color: var(--accent); margin-right: 4px; }
.faq-item[open] summary::before { content: '▼ '; }

.faq-item p {
  margin-top: 8px;
  color: var(--text-hint);
  line-height: 1.5;
}

.support-legal-footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
  font-size: 12px;
  color: var(--text-hint);
}

.support-legal-link {
  color: var(--text-hint);
  text-decoration: underline;
  font-size: 12px;
}
.support-legal-link:hover { color: var(--accent); }

/* ─── Tour Overlay ───────────────────────────── */

.tour-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.72);
  z-index: 300;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 32px;
  animation: fadeIn 0.25s ease;
}

.tour-card {
  background: var(--bg);
  border-radius: 20px;
  padding: 28px 24px 24px;
  width: calc(100% - 32px);
  max-width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 -8px 40px rgba(0,0,0,0.25);
  animation: slideUp 0.3s cubic-bezier(0.34,1.56,0.64,1);
}

.tour-progress {
  display: flex;
  gap: 6px;
  margin-bottom: 4px;
}

.tour-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.3s;
}
.tour-dot.active { background: var(--accent); }

.tour-icon {
  font-size: 48px;
  line-height: 1;
}

.tour-title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  text-align: center;
}

.tour-body {
  font-size: 14px;
  color: var(--text-hint);
  text-align: center;
  line-height: 1.6;
  max-width: 280px;
}

.tour-actions {
  display: flex;
  width: 100%;
  gap: 10px;
  margin-top: 8px;
}

.btn-tour-skip {
  flex: 1;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-hint);
  cursor: pointer;
}

.btn-tour-next {
  flex: 2;
  padding: 12px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-tour-next:active { opacity: 0.85; }