/* =============================================================
   app.css — VTS Hero Combo Tool (Enhanced v2)
   ============================================================= */

/* ── Root & Variables ────────────────────────────────────── */
:root {
  --brand:       #2563eb;
  --brand-glow:  rgba(37,99,235,0.28);
  --brand-light: #3b82f6;
  --accent:      #f97316;
  --surface:     #1e293b;
  --surface-2:   #0f172a;
  --border:      #334155;
  --border-hover:#475569;
  --text-primary:#e2e8f0;
  --text-muted:  #94a3b8;
  --radius-card: 0.875rem;
  --radius-pill: 9999px;
  --transition-fast: 0.15s ease;
  --transition-med:  0.25s ease;
  --transition-slow: 0.4s ease;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 24px var(--brand-glow);
}

/* ── Base ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #020617;
  color: var(--text-primary);
  min-height: 100vh;
  background-image: radial-gradient(rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }
.custom-scrollbar::-webkit-scrollbar { width: 4px; }

/* ── App Container ───────────────────────────────────────── */
#app {
  position: relative;
  background: rgba(15,23,42,0.97);
  border: 1px solid rgba(51,65,85,0.6);
  border-radius: 1.5rem;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.03);
}

/* ── Animations ──────────────────────────────────────────── */
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scale-in {
  from { opacity: 0; transform: scale(0.95) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes card-pop {
  from { opacity: 0; transform: scale(0.88) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes pulse-soft {
  0%,100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.08); opacity: 0.9; }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.animate-fade-in { animation: fade-in-up 0.35s ease both; }
section:not(.hidden) { animation: fade-in-up 0.3s ease both; }

/* ── Logo ────────────────────────────────────────────────── */
.logo-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.5rem;
}
.logo-container::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(37,99,235,0.16) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.main-logo {
  position: relative; z-index: 1;
  width: 150px; height: 150px;
  border-radius: 24px;
  border: 2px solid rgba(59,130,246,0.2);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.main-logo:hover {
  transform: scale(1.04) translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.6), 0 0 30px rgba(37,99,235,0.3);
}

/* ── Tab Navigation ──────────────────────────────────────── */
.tab-pill {
  position: relative; z-index: 10;
  border: none; cursor: pointer;
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.85rem;
  font-size: 0.76rem; font-weight: 700;
  white-space: nowrap;
  display: flex; align-items: center; justify-content: center; gap: 5px;
  transition: background var(--transition-fast), color var(--transition-fast),
              transform var(--transition-fast), box-shadow var(--transition-fast);
}
.tab-pill:hover:not(.tab-pill-active) {
  background: rgba(255,255,255,0.07);
  color: #fff;
  transform: translateY(-1px);
}
.tab-pill-active {
  background: var(--brand);
  color: #f9fafb;
  box-shadow: 0 2px 14px rgba(37,99,235,0.45), inset 0 1px 0 rgba(255,255,255,0.15);
}
.tab-pill-inactive { background: transparent; color: #cbd5e1; }

.tab-badge {
  display: inline-flex;
  font-size: 0.58rem; font-weight: 900;
  padding: 1px 5px;
  border-radius: 5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  animation: pulse-soft 2.8s ease-in-out infinite;
  line-height: 1.4;
}

/* ── Filter Pills ────────────────────────────────────────── */
.filter-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  font-size: 0.8125rem; font-weight: 600;
}
.filter-pill input { display: none; }
.filter-pill:hover { border-color: var(--border-hover); color: var(--text-primary); transform: translateY(-1px); }
.filter-pill:has(input:checked) { color: #fff; }
.s0-pill:has(input:checked) { background: #374151; border-color: #9ca3af; box-shadow: 0 2px 12px rgba(148,163,184,0.2); }
.s1-pill:has(input:checked) { background: #1e40af; border-color: #3b82f6; box-shadow: 0 2px 12px rgba(59,130,246,0.3); }
.s2-pill:has(input:checked) { background: #6b21a8; border-color: #a855f7; box-shadow: 0 2px 12px rgba(168,85,247,0.3); }
.s3-pill:has(input:checked) { background: #c2410c; border-color: #f97316; box-shadow: 0 2px 12px rgba(249,115,22,0.3); }
.s4-pill:has(input:checked) { background: #854d0e; border-color: #facc15; box-shadow: 0 2px 12px rgba(250,204,21,0.3); }
.s5-pill:has(input:checked) { background: #166534; border-color: #4ade80; box-shadow: 0 2px 12px rgba(74,222,128,0.25); }
.free-pill:has(input:checked) { background: #065f46; border-color: #34d399; }
.paid-pill:has(input:checked) { background: #9f1239; border-color: #fb7185; }
.archers-pill:has(input:checked)  { background: #0e7490; border-color: #22d3ee; }
.footmen-pill:has(input:checked)  { background: #3730a3; border-color: #818cf8; }
.cavalry-pill:has(input:checked)  { background: #9d174d; border-color: #f472b6; }
.all-pill:has(input:checked)      { background: #374151; border-color: #9ca3af; }

/* ── Hero Cards ──────────────────────────────────────────── */
.hero-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 8px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  cursor: grab;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
              border-color var(--transition-fast), background var(--transition-fast);
  min-width: 110px; min-height: 130px;
  position: relative; will-change: transform; overflow: hidden;
  animation: card-pop 0.25s ease both;
}
.hero-card:active { cursor: grabbing; }
.hero-card:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 14px 36px rgba(0,0,0,0.5), var(--shadow-glow);
  border-color: var(--brand-light);
  background: #1a2845;
}
.hero-card img {
  width: 86px; height: 86px;
  border-radius: 50%; margin-bottom: 8px;
  object-fit: cover; border: 2px solid var(--border);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.hero-card:hover img { border-color: #60a5fa; transform: scale(1.05); }

/* ── Hero Tag ────────────────────────────────────────────── */
.hero-tag {
  position: absolute; top: 6px; left: 6px;
  padding: 2px 6px; border-radius: var(--radius-pill);
  font-size: 0.62rem; font-weight: 800;
  color: #0b1120; background: var(--accent);
  letter-spacing: 0.04em; box-shadow: 0 2px 6px rgba(249,115,22,0.35);
}

/* ── Generator Cards ─────────────────────────────────────── */
.generator-card {
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  animation: card-pop 0.25s ease both;
}
.generator-card:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 30px rgba(0,0,0,0.45);
  border-color: var(--border-hover);
}
.generator-card-selected {
  border: 2.5px solid #38bdf8 !important;
  background: linear-gradient(135deg, #0f172a, #0c1a30) !important;
  transform: scale(0.95) !important;
  box-shadow: 0 0 20px rgba(56,189,248,0.4) !important;
}
.generator-card-selected:hover {
  transform: scale(0.96) translateY(-1px) !important;
  border-color: #7dd3fc !important;
}

/* ── Combo Slots ─────────────────────────────────────────── */
.combo-slot {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 8rem; height: 8rem;
  border: 2.5px dashed #3b82f6; border-radius: 0.875rem;
  background: rgba(15,23,42,0.9);
  margin: 0.5rem; text-align: center;
  color: #9ca3af; font-size: 0.875rem;
  overflow: hidden; transition: all var(--transition-med); gap: 4px;
}
.combo-slot:hover { border-color: #60a5fa; background: #1e293b; box-shadow: 0 0 20px rgba(37,99,235,0.12); }
.combo-slot.drag-over, .combo-slot-hover {
  border-style: solid; border-color: #4ade80;
  background: #052e16; box-shadow: 0 0 24px rgba(74,222,128,0.25);
}
.combo-slot img { width: 100%; height: 100%; object-fit: cover; border-radius: 0.5rem; }

/* ── Saved Combos ────────────────────────────────────────── */
.saved-combo-display, .generated-combo-card {
  display: flex; flex-direction: row; align-items: center; justify-content: space-between;
  background: linear-gradient(135deg, #1e293b 0%, #182135 100%);
  border: 1px solid var(--border);
  padding: 16px 20px 16px 64px;
  margin: 8px auto; border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  position: relative; width: 100%; max-width: 768px; box-sizing: border-box;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: scale-in 0.28s ease both;
  min-height: 150px;
}
.saved-combo-display:hover, .generated-combo-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.saved-combo-number {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff; width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 900; z-index: 5;
  box-shadow: 0 2px 10px rgba(249,115,22,0.45); flex-shrink: 0;
}
.saved-combo-slots {
  display: flex; flex-direction: row; justify-content: center; align-items: center;
  flex-grow: 1; gap: 10px; flex-wrap: nowrap;
  overflow-x: auto; padding: 4px 0; -webkit-overflow-scrolling: touch;
}
.saved-combo-slot-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  flex-shrink: 0; cursor: default;
}
.saved-combo-slot-item img {
  width: 110px; height: 110px; border-radius: 50%;
  border: 2px solid var(--border); object-fit: cover;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.saved-combo-slot-item:hover img { border-color: #60a5fa; transform: scale(1.06); }
.saved-combo-slot-item span {
  font-size: 0.65rem; font-weight: 700; color: var(--text-muted);
  text-align: center; max-width: 110px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.saved-combo-scorebox {
  display: flex; flex-direction: column; align-items: flex-end;
  gap: 4px; padding-left: 10px; min-width: 90px; flex-shrink: 0;
}

/* ── Hero search ─────────────────────────────────────────── */
.hero-search-wrap { position: relative; margin-bottom: 0.75rem; }
.hero-search-input {
  width: 100%;
  background: var(--surface); border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 0.45rem 0.75rem 0.45rem 2.2rem;
  color: var(--text-primary); font-size: 0.82rem; outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.hero-search-input:focus {
  border-color: var(--brand-light);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.hero-search-icon {
  position: absolute; left: 0.65rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none; width: 14px; height: 14px;
}

/* ── Scroll-to-top ───────────────────────────────────────── */
#scrollTopBtn {
  position: fixed; bottom: 5rem; right: 1rem;
  width: 40px; height: 40px;
  background: var(--brand); color: #fff;
  border-radius: 50%; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all var(--transition-med);
  z-index: 150;
  box-shadow: 0 4px 16px rgba(37,99,235,0.45);
}
#scrollTopBtn.visible { opacity: 1; visibility: visible; transform: translateY(0); }
#scrollTopBtn:hover { background: #1d4ed8; transform: translateY(-2px); }

/* ── Toast ───────────────────────────────────────────────── */
#toastContainer {
  position: fixed; bottom: 5rem; left: 50%; transform: translateX(-50%);
  z-index: 9998; display: flex; flex-direction: column; gap: 8px;
  pointer-events: none; align-items: center;
}
.toast {
  background: rgba(15,23,42,0.98); border: 1px solid var(--border);
  color: var(--text-primary); padding: 10px 20px;
  border-radius: var(--radius-pill); font-size: 0.82rem; font-weight: 600;
  backdrop-filter: blur(8px); box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  animation: toast-in 0.3s ease both; white-space: nowrap;
}
.toast.success { border-color: #34d399; color: #34d399; }
.toast.error   { border-color: #f87171; color: #f87171; }
.toast.info    { border-color: #60a5fa; color: #60a5fa; }

/* ── Loading spinner ─────────────────────────────────────── */
.loading-spinner {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(2,6,23,0.75); backdrop-filter: blur(4px); z-index: 9999;
}
.loading-spinner::after {
  content: ''; width: 44px; height: 44px;
  border: 3px solid var(--border); border-top-color: var(--brand);
  border-radius: 50%; animation: spin 0.7s linear infinite;
}

/* ── Message box ─────────────────────────────────────────── */
#messageBox { backdrop-filter: blur(6px); }
#messageBox > div { animation: scale-in 0.22s ease both; }

/* ── Comment section ─────────────────────────────────────── */
.comment-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.05rem; text-transform: uppercase;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3); flex-shrink: 0;
}
.replies-container {
  margin-left: 1.5rem; margin-top: 0.75rem;
  border-left: 2px solid #334155; padding-left: 1rem;
  display: flex; flex-direction: column; gap: 0.5rem;
}
@media (min-width: 640px) { .replies-container { margin-left: 3rem; } }
.reply-card { background: #1e293b; padding: 0.75rem 1rem; border-radius: 0.75rem; border: 1px solid #334155; }

/* ── Sticky footer ───────────────────────────────────────── */
#comboFooterBar {
  background: linear-gradient(to top, rgba(2,6,23,0.98) 0%, rgba(15,23,42,0.97) 100%);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(59,130,246,0.25);
  box-shadow: 0 -12px 40px rgba(0,0,0,0.6);
}

/* ── Hero info toggle ────────────────────────────────────── */
body.hide-hero-info .info-btn { display: none !important; }

/* ── Number input ────────────────────────────────────────── */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

/* ── Responsive hero grid ────────────────────────────────── */
#availableHeroes, #generatorHeroes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 10px;
  justify-items: center;
}

/* ── Tech node ───────────────────────────────────────────── */
.tech-node-container {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-med);
}

/* ── Tooltip helper ──────────────────────────────────────── */
[title] { cursor: help; }

/* ── Tab Nav scrollbar hide ──────────────────────────────── */
#tabNavScroll::-webkit-scrollbar { display: none; }
#tabNavScroll { scrollbar-width: none; }

/* Tab icon sizing */
.tab-pill svg { flex-shrink: 0; }

/* ── Comments — overhauled ───────────────────────────────── */
#commentsSection { overflow: hidden; }

/* Fade-in each comment card */
#commentsList > div {
  animation: fade-in-up 0.22s ease both;
}

/* Reply container (nested) */
#commentsList [id^="replies-"]:not(:empty) {
  margin-top: 0.75rem;
}

/* Feedback mail button hover glow */
#feedbackMailBtn:hover {
  box-shadow: 0 0 18px rgba(245,158,11,0.2);
}

/* Reply form smooth reveal */
[id^="reply-form-"] {
  transition: all 0.2s ease;
}

/* Comment action button pill */
.reply-btn, .del-btn {
  line-height: 1;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
}