/* ============================================================
   GHOST-DROP — Apple Design System v3.3
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@600&display=swap');

/* ─── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:             #000000;
  --bg-2:           #1c1c1e;
  --surface:        rgba(28,28,30,0.88);
  --surface-solid:  #2c2c2e;
  --border:         rgba(255,255,255,0.07);
  --border-strong:  rgba(255,255,255,0.12);
  --accent:         #0a84ff;
  --accent-dark:    #409cff;
  --accent-light:   rgba(10,132,255,0.14);
  --success:        #30d158;
  --success-light:  rgba(48,209,88,0.14);
  --warning:        #ff9f0a;
  --warning-light:  rgba(255,159,10,0.14);
  --error:          #ff453a;
  --error-light:    rgba(255,69,58,0.14);
  --text:           #ffffff;
  --text-2:         #ebebf5;
  --text-3:         #bebebf;
  --text-4:         #7a7a7e;
  --shadow-xs:      0 1px 3px rgba(0,0,0,0.4);
  --shadow-sm:      0 2px 12px rgba(0,0,0,0.45);
  --shadow-md:      0 6px 24px rgba(0,0,0,0.5);
  --shadow-lg:      0 12px 48px rgba(0,0,0,0.6);
  --radius-sm:      12px;
  --radius-md:      16px;
  --radius-lg:      22px;
  --radius-xl:      28px;
}

/* ─── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display',
               'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-size: 17px;
  line-height: 1.47059;
  font-weight: 400;
  letter-spacing: -0.022em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1.25rem 5rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Header ─────────────────────────────────────────────── */
header {
  position: relative;
  text-align: center;
  margin-bottom: 1.25rem;
  width: 100%;
  max-width: 560px;
}

.logo {
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1.0;
  margin-bottom: 0.3rem;
}

.logo span {
  font-weight: 300;
  color: var(--text-3);
}

.tagline {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.lang-btn {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.lang-btn::before {
  content: '🌐';
  font-size: 1rem;
  opacity: 0.7;
}

.lang-btn .lang-label {
  opacity: 0.6;
  font-size: 0.75rem;
  font-weight: 500;
}

.lang-btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.lang-btn:hover::before {
  opacity: 1;
}

.lang-btn:hover .lang-label {
  opacity: 0.8;
}

.lang-btn:active {
  transform: translateY(0);
}

@media (max-width: 640px) {
  .lang-btn {
    position: static;
    margin: 0.75rem auto 0;
  }
}

/* ─── Card ───────────────────────────────────────────────── */
.card {
  background: var(--surface);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  backdrop-filter: blur(40px) saturate(200%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem 2.25rem;
  width: 100%;
  max-width: 560px;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 1.375rem;
}

.card-divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem -2.25rem;
}

/* ─── Status ─────────────────────────────────────────────── */
#status {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.4rem 0.875rem;
  border-radius: 100px;
  transition: all 0.25s ease;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  width: fit-content;
}

#status::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

#status.info    { background: var(--accent-light);   color: var(--accent);  }
#status.info::before    { background: var(--accent); }
#status.success { background: var(--success-light);  color: var(--success); }
#status.success::before { background: var(--success); }
#status.warn    { background: var(--warning-light);  color: var(--warning); }
#status.warn::before    { background: var(--warning); }
#status.error   { background: var(--error-light);    color: var(--error);   }
#status.error::before   { background: var(--error); }

.room-badge {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 0.75rem;
  letter-spacing: 0.03em;
}

/* ─── Room UI ────────────────────────────────────────────── */
.room-desc {
  font-size: 1rem;
  color: var(--text-3);
  margin-bottom: 1.375rem;
  line-height: 1.6;
  letter-spacing: -0.015em;
}

.room-row {
  display: flex;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

#room-input {
  flex: 1;
  background: rgba(120,120,128,0.08);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.125rem;
  font-family: inherit;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.06em;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-width: 0;
}

#room-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light);
}

#room-input::placeholder {
  color: var(--text-4);
  font-weight: 400;
  letter-spacing: 0;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  background: var(--accent);
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s, transform 0.15s, box-shadow 0.18s;
  letter-spacing: -0.015em;
  box-shadow: 0 2px 8px rgba(0,122,255,0.28);
}

.btn-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 14px rgba(0,122,255,0.38);
}

.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(120,120,128,0.10);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s, transform 0.15s;
  width: 100%;
  letter-spacing: -0.015em;
}

.btn-secondary:hover { background: rgba(120,120,128,0.16); }
.btn-secondary:active { transform: scale(0.97); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--error);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 0.18s;
  letter-spacing: -0.015em;
}

.btn-ghost:hover { background: var(--error-light); }

.room-actions {
  display: flex;
  gap: 0.625rem;
  align-items: stretch;
}

.room-actions .btn-secondary {
  flex: 1;
  width: auto;
}

/* ─── Dropzone ───────────────────────────────────────────── */
#dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  background: rgba(120,120,128,0.03);
  user-select: none;
}

#dropzone:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-2px);
}

#dropzone.drag-over {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-light);
  transform: scale(1.015);
  box-shadow: 0 0 0 4px var(--accent-light);
}

.drop-icon {
  font-size: 3.5rem;
  display: block;
  margin-bottom: 1rem;
  line-height: 1;
}

.drop-label {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.375rem;
}

.drop-sub {
  font-size: 0.875rem;
  color: var(--text-3);
  font-weight: 400;
  letter-spacing: -0.01em;
}

#file-input { display: none; }

/* ─── Dropzone collapsed (after upload) ─────────────────── */
#dropzone.dropzone-collapsed {
  padding: 0.75rem 1rem;
  border-style: solid;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.25s ease;
}
#dropzone.dropzone-collapsed .drop-icon {
  font-size: 1.25rem;
  margin: 0;
  display: inline;
}
#dropzone.dropzone-collapsed .drop-label {
  font-size: 0.875rem;
  margin: 0;
  display: inline;
}
#dropzone.dropzone-collapsed .drop-sub { display: none; }
#dropzone.dropzone-collapsed:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

/* ─── Progress ───────────────────────────────────────────── */
#progress-wrap {
  display: none;
  margin-top: 1.25rem;
  background: rgba(120,120,128,0.14);
  border-radius: 100px;
  overflow: hidden;
  height: 5px;
  position: relative;
}

#progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 100px;
  transition: width 0.3s ease-out;
  width: 0%;
}

/* Barra indeterminada — loop de izquierda a derecha */
#progress-bar.progress-indeterminate {
  width: 100% !important;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--accent) 30%,
    var(--accent-light) 60%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: indeterminate-slide 1.4s ease-in-out infinite;
  transition: none;
}

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

#progress-bar.progress-pulse {
  animation: progress-glow 1.2s ease-in-out infinite;
}

@keyframes progress-glow {
  0%, 100% { box-shadow: 0 0 4px var(--accent), 0 0 8px var(--accent); opacity: 1; }
  50%       { box-shadow: 0 0 12px var(--accent), 0 0 24px var(--accent-light); opacity: 0.85; }
}

.progress-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-3);
  margin-top: 0.5rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
  min-height: 1.2em;
}

/* ─── Files List ─────────────────────────────────────────── */
#files-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cleanup-hint {
  margin: 0.9rem 0 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(120,120,128,0.06);
  color: var(--text-3);
  font-size: 0.8125rem;
  line-height: 1.45;
}

#files-list li {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.125rem;
  background: rgba(120,120,128,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background 0.18s, transform 0.15s;
}

#files-list li:hover {
  background: rgba(120,120,128,0.09);
  transform: translateX(3px);
}

#files-list li.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--text-3);
  font-size: 0.9375rem;
  padding: 2.5rem;
  background: transparent;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-md);
  transform: none;
}

.fname {
  font-size: 0.9375rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
  max-width: 220px;
}

.burn-badge {
  display: inline-block;
  font-size: 0.875rem;
  margin-left: 0.375rem;
  opacity: 0.8;
}

.fsize {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-3);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.ftimer {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--warning);
  white-space: nowrap;
  min-width: 44px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* ─── Download button ────────────────────────────────────── */
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--accent);
  border: none;
  color: #fff;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s, transform 0.15s;
  letter-spacing: -0.01em;
}

.dl-btn:hover  { background: var(--accent-dark); }
.dl-btn:active { transform: scale(0.96); }

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  margin-top: 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-4);
  text-align: center;
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
}

.footer-links a {
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-links .github-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.footer-links .github-link svg {
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-links .github-link:hover svg {
  opacity: 1;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-4);
}

.footer-stat {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: -0.015em;
}

.donate-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: rgba(120,120,128,0.08);
  border: 1px solid var(--border-strong);
  color: var(--text-3);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 100px;
  text-decoration: none;
  transition: all 0.2s ease;
  letter-spacing: -0.01em;
}

.donate-link:hover {
  background: rgba(255,149,0,0.1);
  border-color: var(--warning);
  color: var(--warning);
  transform: scale(1.04);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  body { padding: 2rem 1rem 5rem; }

  .card { padding: 1.625rem 1.5rem; }

  .card-divider { margin: 1.25rem -1.5rem; }

  #files-list li {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: 0.5rem 0.75rem;
  }

  .fname  { max-width: 160px; }
  .fsize  { display: none; }
  .ftimer { grid-column: 2; grid-row: 1; }
  .dl-btn { grid-column: 1 / -1; width: 100%; justify-content: center; padding: 0.75rem; }

  /* Reducir blur en móvil — mejora rendimiento */
  .card {
    -webkit-backdrop-filter: blur(12px) saturate(160%);
    backdrop-filter: blur(12px) saturate(160%);
  }

  .drop-item {
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }

  /* Quitar transform en hover — no hay hover en táctil */
  .drop-item:hover { transform: none; }
  .btn-primary:hover, .btn-secondary:hover,
  .badge-btn:hover, .dl-btn:hover { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; transform: none !important; }
}

/* ─── Hidden utility ────────────────────────────────────────*/
.hidden { display: none !important; }

/* ─── Room badge (inline) ────────────────────────────────── */
.room-badge {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 0.75rem;
}

#room-code-display {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.members-count {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: -0.01em;
}

.badge-actions {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(120,120,128,0.09);
  border: 1px solid var(--border-strong);
  color: var(--text-2);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.4375rem 0.875rem;
  border-radius: 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.18s, transform 0.15s;
  letter-spacing: -0.01em;
}

.badge-btn:hover { background: rgba(120,120,128,0.16); }
.badge-btn:active { transform: scale(0.96); }
.badge-btn.danger { color: var(--error); }
.badge-btn.danger:hover { background: var(--error-light); }
.badge-btn.active { background: var(--accent-light); color: var(--accent); border-color: var(--accent); }

/* ─── Recent rooms ───────────────────────────────────────── */
.section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 1.25rem 0 0.625rem;
}

.recent-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.recent-chip {
  background: var(--accent-light);
  border: 1px solid transparent;
  color: var(--accent);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.4375rem 1rem;
  border-radius: 100px;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.18s;
}

.recent-chip:hover {
  background: var(--accent);
  color: #fff;
}

/* ─── TTL selector ───────────────────────────────────────── */
.ttl-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.ttl-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-3);
  white-space: nowrap;
}

.ttl-options {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.ttl-btn {
  background: rgba(120,120,128,0.08);
  border: 1px solid var(--border-strong);
  color: var(--text-3);
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.3125rem 0.75rem;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: -0.01em;
}

.ttl-btn:hover { background: rgba(120,120,128,0.16); color: var(--text); }
.ttl-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

/* ─── Text input ─────────────────────────────────────────── */
#text-input {
  width: 100%;
  background: rgba(120,120,128,0.08);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.9375rem 1.125rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.015em;
  outline: none;
  resize: vertical;
  min-height: 88px;
  transition: border-color 0.2s, box-shadow 0.2s;
  line-height: 1.55;
}

#text-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light);
}

#text-input::placeholder { color: var(--text-4); }

.text-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 0.875rem;
  flex-wrap: wrap;
}

/* ─── List header ────────────────────────────────────────── */
.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.drop-count {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}

/* ─── Drop items ─────────────────────────────────────────── */
.drop-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  background: rgba(120,120,128,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background 0.18s, transform 0.15s, opacity 0.3s;
  opacity: 0;
  transform: translateY(6px);
  position: relative;
  overflow: hidden;
  flex-wrap: wrap;
}

.drop-item.drop-visible {
  opacity: 1;
  transform: translateY(0);
}

.drop-item:hover { background: rgba(120,120,128,0.09); }

/* Texto */
.drop-text { flex-direction: row; }
.drop-text-body {
  flex: 1;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  min-width: 0;
}
.drop-text-icon { font-size: 1.125rem; flex-shrink: 0; }
.drop-text-content {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  letter-spacing: -0.01em;
}

/* Archivo */
.drop-file { flex-direction: row; align-items: center; }
.drop-file-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 0.125rem; }

.drop-meta {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
}

/* Thumbnail */
.thumb-wrap {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  overflow: hidden;
  background: rgba(120,120,128,0.1);
  flex-shrink: 0;
}

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

/* ─── Modal QR ───────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1.5rem;
}

.modal {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  width: 100%;
  max-width: 320px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.375rem;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
}

#qr-canvas {
  border-radius: 12px;
  overflow: hidden;
  line-height: 0;
}

#qr-canvas img,
#qr-canvas canvas {
  border-radius: 12px;
  display: block;
}

.modal-code {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--accent);
}


/* ─── Toast ──────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(28,28,30,0.92);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.8125rem 1.5rem;
  border-radius: 100px;
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  letter-spacing: -0.015em;
  white-space: nowrap;
  animation: toast-in 0.25s cubic-bezier(0.34,1.56,0.64,1);
}

/* Toast alto (para evitar teclado móvil) */
.toast.toast-high {
  bottom: auto;
  top: 5rem;
}

.toast.toast-success { background: var(--success); color: #fff; }
.toast.toast-error   { background: var(--error);   color: #fff; }
.toast.toast-warn    { background: var(--warning);  color: #fff; }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(12px) scale(0.9); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}

/* ─── Download progress bar (separado del toast) ─────────── */
.dl-progress {
  position: fixed;
  bottom: 6rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2001;
  background: rgba(28,28,30,0.92);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.25rem;
  min-width: 280px;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  color: #fff;
  animation: dl-progress-in 0.25s cubic-bezier(0.34,1.56,0.64,1);
}

.dl-progress-text {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dl-progress-track {
  height: 4px;
  background: rgba(255,255,255,0.15);
  border-radius: 100px;
  overflow: hidden;
}

.dl-progress-bar {
  height: 100%;
  background: var(--success);
  border-radius: 100px;
  width: 0%;
  transition: width 0.25s ease-out;
}

@keyframes dl-progress-in {
  from { opacity: 0; transform: translateX(-50%) translateY(12px) scale(0.92); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}

/* ─── Timer blink últimos 10s ────────────────────────────── */
.ftimer.timer-blink {
  animation: timer-blink 0.8s ease-in-out infinite !important;
}

@keyframes timer-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

/* ─── AirDrop-style drop-in ──────────────────────────────── */
.drop-new {
  animation: airdrop-in 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes airdrop-in {
  0%   { opacity: 0; transform: scale(0.82) translateY(-10px); filter: blur(3px); }
  60%  { opacity: 1; filter: blur(0); }
  100% { opacity: 1; transform: scale(1) translateY(0); filter: blur(0); }
}

/* ─── iOS-style slide-out al expirar ─────────────────────── */
.drop-expiring {
  animation: ios-dismiss 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  pointer-events: none;
}

@keyframes ios-dismiss {
  0%   { opacity: 1; transform: translateX(0) scale(1); max-height: 80px; }
  40%  { opacity: 0.4; transform: translateX(12px) scale(0.97); }
  100% { opacity: 0; transform: translateX(40px) scale(0.94); max-height: 0; padding: 0; margin: 0; border-width: 0; }
}
@media (max-width: 600px) {
  .text-actions { flex-direction: column; align-items: stretch; }
  .text-actions .btn-primary { width: 100%; justify-content: center; }
  .room-badge { flex-direction: column; align-items: flex-start; }
  .drop-item { flex-wrap: wrap; }
}

/* ─── Timer colors ───────────────────────────────────────── */
.ftimer { color: var(--warning); }
.ftimer.timer-ok     { color: var(--success); }
.ftimer.timer-warn   { color: var(--warning); }
.ftimer.timer-danger { color: var(--error); animation: pulse-danger 1s ease infinite; }

@keyframes pulse-danger {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

/* ─── TTL bar ────────────────────────────────────────────── */
.ttl-bar-wrap {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}
.ttl-bar {
  height: 100%;
  background: var(--accent);
  /* transition se aplica dinámicamente desde JS para evitar animación inicial */
  width: 100%;
}
.drop-item:has(.timer-warn) .ttl-bar   { background: var(--warning); }
.drop-item:has(.timer-danger) .ttl-bar { background: var(--error); }

/* ─── Compact mode ───────────────────────────────────────── */
#files-list.compact .drop-item {
  padding: 0.5rem 0.875rem;
}
#files-list.compact .thumb-wrap { display: none; }
#files-list.compact .drop-text-content { -webkit-line-clamp: 1; line-clamp: 1; }
#files-list.compact .fsize { display: none; }

/* ─── Modal imagen ───────────────────────────────────────── */
.img-modal-inner {
  background: var(--surface-solid);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
}
.img-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.img-modal-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}
.img-modal-img {
  max-width: 100%;
  max-height: calc(90vh - 60px);
  object-fit: contain;
  display: block;
}

/* ─── Logo animation ─────────────────────────────────────── */
@keyframes ghost-appear {
  0%   { opacity: 0; transform: translateY(-8px) scale(0.95); filter: blur(4px); }
  60%  { opacity: 1; transform: translateY(2px) scale(1.02); filter: blur(0); }
  100% { transform: translateY(0) scale(1); }
}
.logo-animate {
  animation: ghost-appear 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* ─── Ripple effect ──────────────────────────────────────── */
.ripple-host { position: relative; overflow: hidden; }

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: ripple-expand 0.5s cubic-bezier(0.4,0,0.2,1) forwards;
  pointer-events: none;
}

@keyframes ripple-expand {
  to { transform: scale(4); opacity: 0; }
}

/* ─── Drop count pop animation ───────────────────────────── */
.drop-count-pop {
  animation: count-pop 0.35s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes count-pop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.6); color: var(--accent); }
  100% { transform: scale(1); }
}

/* ─── Dropzone uploading state ───────────────────────────── */
#dropzone.uploading {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-light);
  pointer-events: none;
}

#dropzone.uploading .drop-icon {
  animation: upload-bounce 0.6s ease infinite alternate;
}

@keyframes upload-bounce {
  from { transform: translateY(0); }
  to   { transform: translateY(-6px); }
}

/* ─── File preview before upload ─────────────────────────── */
#upload-preview {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.upload-preview-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  background: rgba(120,120,128,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  animation: drop-in 0.2s ease forwards;
  transition: all 0.3s ease;
}

/* Archivo que se está subiendo AHORA */
.upload-preview-item.uploading-now {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
  transform: scale(1.02);
}

.upload-preview-item.uploading-now .upload-preview-name {
  color: var(--accent);
  font-weight: 600;
}

.upload-preview-item.uploading-now .upload-preview-icon {
  animation: pulse-icon 1.5s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.15); opacity: 0.8; }
}

/* Archivo ya subido */
.upload-preview-item.uploaded {
  opacity: 0.5;
  background: rgba(120,120,128,0.03);
}

.upload-preview-item.uploaded .upload-preview-name {
  text-decoration: line-through;
  color: var(--text-3);
}

.upload-preview-icon { font-size: 1.25rem; flex-shrink: 0; }
.upload-preview-name {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.upload-preview-size {
  font-size: 0.75rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

/* ─── Skeleton loader ────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(120,120,128,0.08) 25%,
    rgba(120,120,128,0.16) 50%,
    rgba(120,120,128,0.08) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.skeleton-thumb  { width: 44px; height: 44px; border-radius: 8px; flex-shrink: 0; }
.skeleton-line   { height: 14px; border-radius: 6px; }
.skeleton-short  { width: 40%; }
.skeleton-long   { width: 70%; }
.skeleton-text   { flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.skeleton-btn    { width: 64px; height: 32px; border-radius: 8px; flex-shrink: 0; }

/* ─── Member avatars ─────────────────────────────────────── */
.members-avatars {
  display: flex;
  align-items: center;
  gap: -4px;
  margin-top: 0.625rem;
}

.avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--surface-solid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  color: #fff;
  margin-left: -6px;
  flex-shrink: 0;
  transition: transform 0.2s;
}

.avatar:first-child { margin-left: 0; }
.avatar:hover { transform: translateY(-2px) scale(1.1); z-index: 1; }

/* Colores de avatares — basados en los colores de iOS */
.avatar-0 { background: #007aff; }
.avatar-1 { background: #34c759; }
.avatar-2 { background: #ff9500; }
.avatar-3 { background: #af52de; }
.avatar-4 { background: #ff2d55; }
.avatar-5 { background: #5ac8fa; }

.avatar-typing {
  background: rgba(120,120,128,0.2);
  color: var(--text-3);
}

/* ─── Typing indicator ───────────────────────────────────── */
.typing-indicator {
  display: none;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--text-3);
  font-weight: 400;
  letter-spacing: -0.01em;
  padding: 0.5rem 0;
}

.typing-indicator.visible { display: flex; }

.typing-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-3);
  animation: typing-bounce 1.2s ease infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* ─── Expire disintegration ──────────────────────────────── */
.drop-expiring {
  animation: disintegrate 0.6s cubic-bezier(0.4,0,0.2,1) forwards;
}

@keyframes disintegrate {
  0%   { opacity: 1; transform: translateX(0) scale(1); filter: blur(0); }
  40%  { opacity: 0.6; transform: translateX(8px) scale(0.98); filter: blur(1px); }
  100% { opacity: 0; transform: translateX(24px) scale(0.94); filter: blur(4px); max-height: 0; padding: 0; margin: 0; }
}

/* ─── Uploading indicator en dropzone ───────────────────── */
.dropzone-progress-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* ─── Pulse al llegar archivo nuevo ─────────────────────── */
@keyframes new-drop-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0,122,255,0.4); }
  70%  { box-shadow: 0 0 0 8px rgba(0,122,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,122,255,0); }
}

.drop-pulse {
  animation: new-drop-pulse 0.6s ease forwards;
}

/* ─── Online counter ─────────────────────────────────────── */
.online-counter {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--surface);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: -0.01em;
  box-shadow: var(--shadow-sm);
  z-index: 100;
  transition: opacity 0.3s;
  user-select: none;
}

.online-counter:hover { opacity: 0.7; }

.online-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
  animation: online-pulse 2.5s ease infinite;
}

@keyframes online-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,199,89,0.4); }
  50%       { box-shadow: 0 0 0 5px rgba(52,199,89,0); }
}

@media (max-width: 600px) {
  .online-counter {
    bottom: 1rem;
    right: 1rem;
    font-size: 0.75rem;
    padding: 0.3rem 0.625rem;
  }
}

/* ─── Apple-style animations ─────────────────────────────── */

/* Cards entran con spring desde abajo */
.card {
  animation: card-enter 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.10s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.20s; }
.card:nth-child(5) { animation-delay: 0.25s; }

@keyframes card-enter {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Botones con spring al hacer hover */
.btn-primary, .btn-secondary, .badge-btn, .dl-btn {
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
              background 0.18s ease,
              box-shadow 0.18s ease;
}

.btn-primary:hover  { transform: scale(1.04); }
.btn-secondary:hover { transform: scale(1.02); }
.badge-btn:hover    { transform: scale(1.06); }
.dl-btn:hover       { transform: scale(1.06); }

/* Drop items con spring */
.drop-item {
  transition: background 0.18s ease,
              transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              opacity 0.3s ease;
}
.drop-item:hover { transform: translateX(4px) scale(1.005); }

/* Dropzone hover con spring */
#dropzone {
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Status pill con fade suave */
#status {
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Input focus con spring */
#room-input, #text-input {
  transition: border-color 0.2s ease,
              box-shadow 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
#room-input:focus, #text-input:focus {
  transform: scale(1.01);
}

/* Recent chips con spring */
.recent-chip {
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.recent-chip:hover { transform: scale(1.08); }

/* TTL buttons con spring */
.ttl-btn {
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.ttl-btn:hover  { transform: scale(1.06); }
.ttl-btn.active { transform: scale(1.04); }

/* Modal entrada con spring */
.modal, .img-modal-inner {
  animation: modal-spring 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes modal-spring {
  from { opacity: 0; transform: scale(0.88) translateY(16px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Toast con spring */
.toast {
  animation: toast-spring 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes toast-spring {
  from { opacity: 0; transform: translateX(-50%) translateY(16px) scale(0.88); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
}

/* Logo hover */
.logo {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: default;
}
.logo:hover { transform: scale(1.03); }

/* Número de sala con pop al aparecer */
#room-code-display {
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Reduce motion — respetar preferencia del sistema */
@media (prefers-reduced-motion: reduce) {
  .card { animation: none; }
  .btn-primary:hover, .btn-secondary:hover,
  .badge-btn:hover, .dl-btn:hover,
  .drop-item:hover, .recent-chip:hover,
  .ttl-btn:hover, .logo:hover { transform: none; }
}

/* ─── Ghost Exit animation ───────────────────────────────── */
.ghost-exit {
  pointer-events: none;
  animation: ghost-exit 0.42s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  overflow: hidden;
}

@keyframes ghost-exit {
  0%   { opacity: 1; transform: scale(1) translateY(0); filter: blur(0); max-height: 120px; }
  60%  { opacity: 0.3; transform: scale(0.92) translateY(-8px); filter: blur(3px); }
  100% { opacity: 0; transform: scale(0.88) translateY(-12px); filter: blur(6px);
         max-height: 0; padding: 0; margin: 0; border-width: 0; }
}

/* ─── Exit animation (The Ghost Exit) ───────────────────── */
.exit-animation {
  pointer-events: none;
  animation: the-ghost-exit 0.52s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  overflow: hidden;
  transform-origin: 50% 50%;
}

@keyframes the-ghost-exit {
  0%   { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); max-height: 120px; }
  45%  { opacity: 0.8; transform: translateY(-2px) scale(0.985); filter: blur(1.5px); }
  100% { opacity: 0; transform: translateY(-14px) scale(0.94); filter: blur(9px);
         max-height: 0; padding: 0; margin: 0; border-width: 0; }
}

.burn-exit-animation {
  pointer-events: none;
  overflow: hidden;
  transform-origin: 50% 65%;
  animation: burn-out 1.5s cubic-bezier(0.22, 0.9, 0.2, 1) forwards;
  position: relative;
}

.burn-exit-animation::before {
  content: "";
  position: absolute;
  inset: -12px;
  pointer-events: none;
  border-radius: inherit;
  background:
    radial-gradient(24% 26% at 22% 86%, rgba(255, 199, 93, 0.75), rgba(255, 120, 24, 0.36) 55%, transparent 74%),
    radial-gradient(23% 24% at 48% 90%, rgba(255, 170, 76, 0.72), rgba(255, 90, 22, 0.33) 58%, transparent 76%),
    radial-gradient(18% 20% at 73% 88%, rgba(255, 186, 82, 0.7), rgba(255, 88, 16, 0.3) 56%, transparent 74%);
  mix-blend-mode: screen;
  animation: burn-flame-layer 1.5s ease-out forwards;
}

@keyframes burn-out {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0) saturate(1);
    box-shadow: 0 0 0 rgba(255, 102, 0, 0);
    max-height: 120px;
  }
  20% {
    opacity: 1;
    transform: translateY(-1px) scale(1.01);
    filter: blur(0.2px) saturate(1.2);
    box-shadow: 0 0 26px rgba(255, 120, 0, 0.3);
  }
  55% {
    opacity: 0.7;
    transform: translateY(-7px) scale(0.95);
    filter: blur(3.2px) saturate(1.8);
    box-shadow: 0 0 40px rgba(255, 88, 0, 0.38);
  }
  100% {
    opacity: 0;
    transform: translateY(-15px) scale(0.82);
    filter: blur(10px) saturate(2);
    box-shadow: 0 0 0 rgba(255, 88, 0, 0);
    max-height: 0;
    padding: 0;
    margin: 0;
    border-width: 0;
  }
}

@keyframes burn-flame-layer {
  0% { opacity: 0.25; transform: translateY(6px) scale(0.96); filter: blur(2px); }
  35% { opacity: 0.95; transform: translateY(-2px) scale(1.02); filter: blur(0.8px); }
  100% { opacity: 0; transform: translateY(-22px) scale(1.08); filter: blur(3px); }
}

/* ─── Empty state — fantasmita flotante ──────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  background: transparent;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-md);
  list-style: none;
}

.empty-ghost {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 0.875rem;
  display: block;
  animation: ghost-float 3s ease-in-out infinite;
  filter: drop-shadow(0 4px 12px rgba(0,122,255,0.15));
}

@keyframes ghost-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%       { transform: translateY(-10px) rotate(2deg); }
}

.empty-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-2);
  letter-spacing: -0.015em;
  margin-bottom: 0.25rem;
}

.empty-sub {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-4);
  letter-spacing: -0.01em;
}

/* ─── Download button — feedback visual ──────────────────── */
.dl-btn.dl-success {
  background: var(--success) !important;
  box-shadow: 0 0 0 0 rgba(52,199,89,0.5);
  animation: dl-confirm 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards,
             dl-glow 0.6s ease 0.1s forwards;
}

@keyframes dl-confirm {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.18); }
  100% { transform: scale(1); }
}

@keyframes dl-glow {
  0%   { box-shadow: 0 0 0 0 rgba(52,199,89,0.5); }
  50%  { box-shadow: 0 0 0 8px rgba(52,199,89,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,199,89,0); }
}

/* ─── Glassmorphism Pro en drop items ────────────────────── */
.drop-item {
  background: rgba(255,255,255,0.55) !important;
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.35) !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.6) !important;
}

.drop-item {
  background: rgba(255,255,255,0.05) !important;
  border: 1px solid rgba(255,255,255,0.10) !important;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.06) !important;
}

/* ─── Timer monospaced — sin baile de números ────────────── */
.ftimer {
  font-family: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', 'Fira Code',
               ui-monospace, monospace !important;
  font-size: 0.8125rem !important;
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  min-width: 42px;
  text-align: right;
}

/* ─── Mesh Gradient Background ───────────────────────────── */
.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  will-change: transform;
}

/* Orb 1 — gris claro, arriba izquierda */
.bg-orb-1 {
  width: 600px;
  height: 600px;
  background: #c8c8c8;
  top: -120px;
  left: -100px;
}

/* Orb 2 — gris medio, arriba derecha */
.bg-orb-2 {
  width: 500px;
  height: 500px;
  background: #a0a0a0;
  top: -80px;
  right: -80px;
  opacity: 0.09;
}

/* Orb 3 — gris oscuro, centro-abajo */
.bg-orb-3 {
  width: 450px;
  height: 450px;
  background: #787878;
  bottom: 10%;
  left: 20%;
  opacity: 0.08;
}

/* Orb 4 — blanco suave, abajo derecha */
.bg-orb-4 {
  width: 380px;
  height: 380px;
  background: #e0e0e0;
  bottom: -60px;
  right: 5%;
  opacity: 0.10;
}

@keyframes orb-float-1 {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(60px, 80px) scale(1.08); }
  66%  { transform: translate(-40px, 50px) scale(0.95); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes orb-float-2 {
  0%   { transform: translate(0, 0) scale(1); }
  40%  { transform: translate(-70px, 60px) scale(1.05); }
  70%  { transform: translate(30px, 100px) scale(0.97); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes orb-float-3 {
  0%   { transform: translate(0, 0) scale(1); }
  30%  { transform: translate(80px, -50px) scale(1.1); }
  60%  { transform: translate(-50px, -80px) scale(0.93); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes orb-float-4 {
  0%   { transform: translate(0, 0) scale(1); }
  45%  { transform: translate(-60px, -70px) scale(1.06); }
  75%  { transform: translate(40px, -40px) scale(0.96); }
  100% { transform: translate(0, 0) scale(1); }
}

.bg-orb-1 { opacity: 0.10; background: #ffffff; }
.bg-orb-2 { opacity: 0.07; background: #d0d0d0; }
.bg-orb-3 { opacity: 0.06; background: #b0b0b0; }
.bg-orb-4 { opacity: 0.08; background: #ffffff; }

/* Reducir movimiento — respetar preferencia */
@media (prefers-reduced-motion: reduce) {
  .bg-orb { animation: none !important; }
}

/* ─── Version badge ───────────────────────────────────────── */
.version-badge {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  font-family: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', ui-monospace, monospace;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-4);
  background: var(--surface);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 0.25rem 0.625rem;
  z-index: 500;
  user-select: none;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.version-badge:hover {
  opacity: 1;
}

@media (max-width: 600px) {
  .version-badge {
    font-size: 0.625rem;
    padding: 0.2rem 0.5rem;
    bottom: 0.75rem;
    left: 0.75rem;
  }
}

/* ─── Burn after download ────────────────────────────────── */
.burn-row {
  margin-top: 1.125rem;
  padding-top: 1.125rem;
  border-top: 1px solid var(--border);
}

.burn-toggle {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.burn-icon {
  font-size: 1.375rem;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.burn-toggle:has(#burn-switch:checked) .burn-icon {
  transform: scale(1.2) rotate(-10deg);
}

.burn-label {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.burn-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.burn-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: -0.01em;
}

/* ── iOS Toggle Switch ──────────────────────────────────── */
.toggle-track {
  position: relative;
  width: 51px;
  height: 31px;
  flex-shrink: 0;
}

.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.toggle-thumb {
  position: absolute;
  inset: 0;
  background: rgba(120,120,128,0.22);
  border-radius: 100px;
  transition: background 0.25s ease;
  cursor: pointer;
}

.toggle-thumb::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 27px;
  height: 27px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0,0,0,0.22), 0 1px 2px rgba(0,0,0,0.12);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1),
              width 0.12s ease;
}

/* Pressed state — thumb se aplana */
.toggle-track:active .toggle-thumb::after {
  width: 31px;
}

.toggle-input:checked ~ .toggle-thumb {
  background: #ff3b30;
}

.toggle-input:checked ~ .toggle-thumb::after {
  transform: translateX(20px);
}

/* Glow cuando está activo */
.toggle-input:checked ~ .toggle-thumb {
  box-shadow: 0 0 0 0 rgba(255,59,48,0.4);
  animation: burn-glow 2s ease infinite;
}

@keyframes burn-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,59,48,0); }
  50%       { box-shadow: 0 0 0 6px rgba(255,59,48,0.15); }
}

/* ── Burn badge en el item ──────────────────────────────── */
.burn-badge {
  font-size: 0.875rem;
  line-height: 1;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 3px rgba(255,59,48,0.4));
  animation: burn-flicker 2.5s ease-in-out infinite;
}

@keyframes burn-flicker {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.75; transform: scale(0.92); }
}

/* Drop item con burn — borde rojo sutil */
.drop-item:has(.burn-badge) {
  border-color: rgba(255,59,48,0.18) !important;
  box-shadow: inset 0 0 0 1px rgba(255, 88, 0, 0.06), 0 2px 10px rgba(255, 88, 0, 0.08);
  position: relative;
}

.drop-item:has(.burn-badge)::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(110% 55% at 12% 100%, rgba(255, 150, 56, 0.14) 0%, rgba(255, 110, 32, 0.08) 42%, rgba(255, 110, 32, 0) 72%);
  animation: burn-item-glow 2.3s ease-in-out infinite;
}

.drop-item:has(.burn-badge)::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 4px;
  height: 44%;
  pointer-events: none;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 168, 66, 0) 0%, rgba(255, 116, 18, 0.14) 72%, rgba(255, 82, 0, 0.24) 100%);
  filter: blur(3px);
  opacity: 0.7;
  animation: burn-item-floor 2.8s ease-in-out infinite;
}

@keyframes burn-item-glow {
  0%, 100% { opacity: 0.55; transform: translateY(0); }
  50% { opacity: 0.9; transform: translateY(-1px); }
}

@keyframes burn-item-floor {
  0%, 100% { opacity: 0.45; transform: scaleX(0.98); }
  50% { opacity: 0.82; transform: scaleX(1.02); }
}

/* ─── Digit Input ────────────────────────────────────────── */
.digit-input-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.digit-boxes {
  display: flex;
  gap: 0.3rem;
  flex: 1;
  min-width: 0;
}

.digit-box {
  flex: 1;
  min-width: 0;
  width: 0;
  aspect-ratio: 1;
  min-height: 52px;
  text-align: center;
  font-family: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', ui-monospace, monospace;
  font-size: clamp(1rem, 5vw, 1.375rem);
  font-weight: 700;
  color: var(--text);
  background: rgba(120,120,128,0.08);
  border: 2px solid var(--border-strong);
  border-radius: 8px;
  outline: none;
  caret-color: transparent;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  -moz-appearance: textfield;
  appearance: textfield;
  padding: 0;
}

.digit-box::-webkit-outer-spin-button,
.digit-box::-webkit-inner-spin-button { -webkit-appearance: none; }
.digit-box { -moz-appearance: textfield; appearance: textfield; }

.digit-box:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: rgba(0,122,255,0.04);
}

.digit-box.digit-filled {
  border-color: var(--accent);
  color: var(--accent);
}

/* Spinning — caja fuerte girando */
.digit-box.digit-spinning {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light),
              0 0 10px rgba(0,122,255,0.2);
  background: rgba(0,122,255,0.06);
}

/* Animación de entrada al escribir */
.digit-box.digit-pop {
  animation: digit-pop 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes digit-pop {
  0%   { transform: scale(1.3); }
  100% { transform: scale(1.08); }
}

/* ─── Sonido visual — ripple de sintonización ────────────── */
@keyframes tune-ring {
  0%   { box-shadow: 0 0 0 0 rgba(0,122,255,0.5); }
  100% { box-shadow: 0 0 0 20px rgba(0,122,255,0); }
}

.tune-pulse {
  animation: tune-ring 0.5s ease-out forwards;
}

/* ─── TTL Picker (iOS Action Sheet) ─────────────────────── */
.ttl-picker {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0 0.75rem 0.75rem;
}

.ttl-picker.hidden {
  display: none !important;
}

.ttl-picker-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  animation: picker-fade-in 0.22s ease forwards;
}

@keyframes picker-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.ttl-picker-sheet {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--surface-solid);
  border-radius: var(--radius-xl);
  padding: 1.5rem 1.25rem 1.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  animation: sheet-spring 0.38s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  border: 1px solid var(--border);
}

@keyframes sheet-spring {
  from { opacity: 0; transform: translateY(60px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes sheet-out {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(40px) scale(0.97); }
}

@keyframes picker-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.ttl-picker-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.025em;
  text-align: center;
}

.ttl-picker-sub {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: -0.01em;
  text-align: center;
  margin-top: -0.375rem;
}

.ttl-picker-options {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.625rem;
  margin-top: 0.25rem;
}

.ttl-picker-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.125rem;
  background: rgba(120,120,128,0.09);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.125rem 0.5rem;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1),
              background 0.15s ease,
              border-color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.ttl-picker-btn:hover {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  box-shadow: 0 4px 16px rgba(0,122,255,0.3);
  transform: scale(1.04);
}

.ttl-picker-btn:hover .ttl-picker-time,
.ttl-picker-btn:hover .ttl-picker-unit {
  color: #ffffff !important;
}

.ttl-picker-btn:active {
  transform: scale(0.96);
  background: var(--accent-dark) !important;
  border-color: var(--accent-dark) !important;
}

/* Quitar featured hardcodeado — ya no se usa */
.ttl-picker-featured {
  background: rgba(120,120,128,0.09);
  border-color: var(--border-strong);
  box-shadow: none;
}

.ttl-picker-featured .ttl-picker-time,
.ttl-picker-featured .ttl-picker-unit {
  color: var(--text);
}

.ttl-picker-time {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.04em;
  line-height: 1;
}

.ttl-picker-unit {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.ttl-picker-cancel {
  background: rgba(120,120,128,0.09);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 0.9375rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--error);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
  letter-spacing: -0.015em;
  -webkit-tap-highlight-color: transparent;
}

.ttl-picker-cancel:hover { background: var(--error-light); }
.ttl-picker-cancel:active { transform: scale(0.98); }

.ttl-picker-burn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: var(--warning-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 1rem;
  user-select: none;
}

.ttl-picker-burn:hover {
  background: var(--warning-light);
  border-color: var(--warning);
}

.ttl-picker-burn input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--warning);
}

.ttl-picker-burn span {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
}

@media (prefers-reduced-motion: reduce) {
  .ttl-picker-sheet { animation: none; }
  .ttl-picker-backdrop { animation: none; }
}

/* ─── Onboarding Tooltip ─────────────────────────────────── */
.onboarding-tooltip {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: onboarding-fade-in 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.onboarding-tooltip.hidden {
  display: none;
}

.onboarding-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: backdrop-fade-in 0.3s ease;
  pointer-events: all;
}

.onboarding-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  max-width: 420px;
  width: calc(100% - 2rem);
  position: relative;
  z-index: 1;
  animation: content-slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: all;
}

.onboarding-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.onboarding-icon {
  font-size: 3rem;
  animation: onboarding-wave 0.6s ease-in-out 0.3s;
}

.onboarding-text {
  flex: 1;
}

.onboarding-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.onboarding-desc {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.onboarding-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.onboarding-step {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.onboarding-step:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: 600;
  flex-shrink: 0;
}

.step-text {
  font-size: 0.9375rem;
  color: var(--text);
  font-weight: 500;
}

.onboarding-cta {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: linear-gradient(135deg, var(--accent) 0%, #3b82f6 100%);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}

.onboarding-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

.onboarding-close {
  background: transparent;
  border: none;
  color: var(--text-3);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  transition: all 0.2s;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.onboarding-close:hover {
  color: var(--text);
  background: var(--surface);
}

@keyframes onboarding-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes backdrop-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes content-slide-up {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes onboarding-wave {
  0%, 100% { transform: rotate(0deg); }
  10%, 30%, 50%, 70% { transform: rotate(14deg); }
  20%, 40%, 60% { transform: rotate(-8deg); }
  80% { transform: rotate(6deg); }
  90% { transform: rotate(-4deg); }
}

@media (max-width: 640px) {
  .onboarding-content {
    padding: 1.5rem;
    max-width: none;
  }
  
  .onboarding-title {
    font-size: 1.25rem;
  }
  
  .onboarding-icon {
    font-size: 2.5rem;
  }
  
  .onboarding-steps {
    gap: 0.75rem;
  }
  
  .onboarding-step {
    padding: 0.625rem 0.875rem;
  }
  
  .step-number {
    width: 24px;
    height: 24px;
    font-size: 0.8125rem;
  }
  
  .step-text {
    font-size: 0.875rem;
  }
}