/* ============================================
   D4 Damage Calculator — Style System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Cinzel:wght@400;700;900&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --bg-deepest: #0a0a14;
  --bg-dark: #12121f;
  --bg-panel: #1a1a2e;
  --bg-panel-hover: #222240;
  --bg-input: #0f0f1e;
  --bg-input-focus: #16162e;

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(231, 76, 60, 0.3);
  --border-accent: rgba(255, 107, 53, 0.4);

  --text-primary: #e8e6e3;
  --text-secondary: #9a9a9a;
  --text-muted: #5a5a6a;
  --text-accent: #ff6b35;
  --text-value: #f0c040;
  --text-damage: #ff4444;

  --accent-red: #e74c3c;
  --accent-ember: #ff6b35;
  --accent-gold: #f0c040;
  --accent-blue: #4a9eff;
  --accent-green: #2ecc71;
  --accent-purple: #9b59b6;

  --glow-red: 0 0 20px rgba(231, 76, 60, 0.15);
  --glow-ember: 0 0 30px rgba(255, 107, 53, 0.1);
  --glow-gold: 0 0 15px rgba(240, 192, 64, 0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --transition-fast: 0.15s ease;
  --transition-med: 0.25s ease;
  --transition-slow: 0.4s ease;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Cinzel', serif;
}

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

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deepest);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Subtle background texture */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(231, 76, 60, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(255, 107, 53, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* --- Layout --- */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 60px;
}

/* --- Header --- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 24px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.app-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-ember), var(--accent-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

.app-title span {
  font-size: 0.7em;
  opacity: 0.6;
  -webkit-text-fill-color: var(--text-secondary);
  margin-left: 8px;
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Build Name Bar --- */
.build-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.build-bar label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.build-name-input {
  flex: 1;
  min-width: 200px;
}

/* --- Panels --- */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  transition: border-color var(--transition-med);
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.panel-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-title .icon {
  font-size: 1.1em;
}

.panel-title .badge {
  font-family: var(--font-body);
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-additive {
  background: rgba(78, 154, 255, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(78, 154, 255, 0.2);
}

.badge-multiplicative {
  background: rgba(255, 107, 53, 0.15);
  color: var(--accent-ember);
  border: 1px solid rgba(255, 107, 53, 0.2);
}

/* --- Inputs Panel (top) --- */
.inputs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-group label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.input-group.main-stat-active label {
  color: var(--accent-ember);
  text-shadow: 0 0 10px rgba(255, 107, 53, 0.2);
}

.input-group.main-stat-active input {
  border-color: var(--accent-ember);
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.2);
  background: var(--bg-input-focus);
}

.input-group .input-hint {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

/* --- Base Input Styles --- */
input[type="text"],
input[type="number"],
select {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 8px 10px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  width: 100%;
  outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  background: var(--bg-input-focus);
  border-color: var(--accent-ember);
  box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
}

input[type="number"] {
  font-variant-numeric: tabular-nums;
}

/* Remove number spinners */
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; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-panel-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent-red), var(--accent-ember));
  border-color: transparent;
  color: white;
  font-weight: 600;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #d44032, #e85a2a);
  border-color: transparent;
  box-shadow: var(--glow-red);
}

.btn-add {
  border: 1px dashed rgba(255, 255, 255, 0.15);
  color: var(--text-secondary);
  width: 100%;
  justify-content: center;
  padding: 8px;
  margin-top: 8px;
}

.btn-add:hover {
  border-color: var(--accent-ember);
  color: var(--accent-ember);
  background: rgba(255, 107, 53, 0.05);
}

.btn-delete {
  padding: 4px 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  line-height: 1;
}

.btn-delete:hover {
  color: var(--accent-red);
  background: rgba(231, 76, 60, 0.1);
}

.btn-compare {
  background: rgba(155, 89, 182, 0.15);
  border-color: rgba(155, 89, 182, 0.3);
  color: var(--accent-purple);
}

.btn-compare:hover {
  background: rgba(155, 89, 182, 0.25);
  border-color: rgba(155, 89, 182, 0.5);
}

/* --- Bonus Columns Layout --- */
.bonus-columns {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 20px;
  margin-bottom: 20px;
}

/* --- Bonus Table --- */
.bonus-table {
  width: 100%;
  border-collapse: collapse;
}

.bonus-table th {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.bonus-table th:first-child {
  padding-left: 12px;
}

.bonus-table th.col-value,
.bonus-table th.col-formula {
  text-align: center;
}

.bonus-table th.col-running {
  text-align: right;
}

.bonus-table td {
  padding: 4px 4px;
  vertical-align: middle;
}

.bonus-table tbody tr {
  transition: background var(--transition-fast);
  border-radius: var(--radius-sm);
}

.bonus-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.bonus-table .row-name-input {
  background: transparent;
  border: 1px solid transparent;
  padding: 6px 8px;
  font-size: 0.85rem;
  color: var(--text-primary);
}

.bonus-table .row-name-input:focus {
  background: var(--bg-input);
  border-color: var(--border-subtle);
}

.bonus-table .row-value-input {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 6px 8px;
  font-size: 0.85rem;
  text-align: right;
  width: 90px;
  color: var(--text-value);
  font-weight: 500;
}

.bonus-table .formula-value {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.bonus-table .running-damage {
  text-align: right;
  color: var(--accent-gold);
  font-size: 0.82rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  padding-right: 8px;
}

.bonus-table .col-delete {
  width: 32px;
  text-align: center;
}

/* --- Total Row --- */
.bonus-total-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.bonus-total-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

.bonus-total-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-value);
  font-variant-numeric: tabular-nums;
}

/* --- Results Dashboard --- */
.results-panel {
  border-color: var(--border-glow);
  box-shadow: var(--glow-red);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.result-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  text-align: center;
  transition: all var(--transition-med);
}

.result-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.1);
}

.result-card .result-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  margin-bottom: 6px;
}

.result-card .result-value {
  font-size: 1.3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.result-card.result-final {
  border-color: var(--border-glow);
  background: rgba(231, 76, 60, 0.06);
}

.result-card.result-final .result-value {
  font-size: 1.6rem;
  color: var(--text-damage);
  font-weight: 900;
}

.result-card.result-total {
  border-color: var(--border-accent);
  background: rgba(255, 107, 53, 0.06);
}

.result-card.result-total .result-value {
  font-size: 1.4rem;
  color: var(--accent-ember);
  font-weight: 800;
}

/* --- Monster DR Note --- */
.dr-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
  font-style: italic;
}

.dr-note strong {
  color: var(--text-secondary);
}

/* --- Build Comparison --- */
.compare-panel {
  margin-top: 20px;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.compare-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: all var(--transition-med);
  cursor: pointer;
}

.compare-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
}

.compare-card.active {
  border-color: var(--accent-ember);
  background: rgba(255, 107, 53, 0.06);
}

.compare-card .compare-name {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.compare-card .compare-damage {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-gold);
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}

.compare-card .compare-diff {
  font-size: 0.78rem;
  font-weight: 600;
}

.compare-diff.positive { color: var(--accent-green); }
.compare-diff.negative { color: var(--accent-red); }

.compare-card .compare-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* --- Save Dropdown --- */
.save-dropdown {
  position: relative;
}

.save-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 220px;
  max-height: 300px;
  overflow-y: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  z-index: 100;
  padding: 6px;
  display: none;
}

.save-menu.open {
  display: block;
  animation: fadeSlideDown 0.2s ease;
}

.save-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
  font-size: 0.82rem;
}

.save-menu-item:hover {
  background: var(--bg-panel-hover);
}

.save-menu-item .item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.save-menu-item .item-delete {
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.save-menu-item .item-delete:hover {
  color: var(--accent-red);
  background: rgba(231, 76, 60, 0.1);
}

.save-menu-empty {
  text-align: center;
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

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

@keyframes rowAppear {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.bonus-table tbody tr {
  animation: rowAppear 0.2s ease;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .bonus-columns {
    grid-template-columns: 1fr;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .results-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .app-container {
    padding: 12px 14px 40px;
  }

  .inputs-grid {
    grid-template-columns: 1fr 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .result-card.result-final .result-value {
    font-size: 1.2rem;
  }
}

/* --- Utility --- */
.hidden { display: none !important; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--text-accent); }
.text-gold { color: var(--accent-gold); }
.text-red { color: var(--accent-red); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-8 { margin-bottom: 8px; }

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  backdrop-filter: blur(4px);
}
.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border-panel);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 500px;
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  animation: fadeSlideDown 0.3s ease;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.2);
}
.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}
.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: color 0.2s ease;
}
.btn-close:hover {
  color: var(--text-primary);
}
.modal-body {
  padding: 24px;
}
.modal-instruction {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 0;
  margin-bottom: 16px;
  line-height: 1.5;
}
.maxroll-textarea {
  width: 100%;
  height: 200px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 12px;
  resize: vertical;
}
.maxroll-textarea:focus {
  outline: none;
  border-color: var(--text-accent);
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.2);
}