/* ── Google Fonts ────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

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

:root {
  --bg:       #f5f5f5;
  --surface:  #ffffff;
  --panel:    #eef4ff;
  --accent:   #0082e6;
  --accent2:  #3362ce;
  --text:     #303841;
  --text-dim: #6d767d;
  --border:   #dddddd;
  --input-bg: #ffffff;
  --success:  #198754;
  --warn:     #f59e0b;
  --danger:   #e00909;
  --row-alt:  #f8f8f8;
  --font:     'IBM Plex Sans', system-ui, sans-serif;
  --mono:     'Consolas', 'Courier New', monospace;
  --radius:   6px;
  --shadow:   0 1px 4px rgba(0,0,0,0.09), 0 1px 2px rgba(0,0,0,0.05);
}

html, body { height: 100%; font-family: var(--font); font-size: 14px; color: var(--text); background: var(--bg); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.hidden { display: none !important; }
.error { color: var(--danger); font-size: 13px; margin-top: 8px; }
.success { color: var(--success); font-size: 13px; }

/* ── Login Page ─────────────────────────────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #dceeff 0%, #f5f5f5 70%);
}

.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 40px 48px;
  width: 380px;
  box-shadow: 0 4px 24px rgba(0,130,230,0.10);
  text-align: center;
}

.login-box h1 { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.login-box .subtitle { color: var(--text-dim); font-size: 13px; margin-bottom: 28px; }

.login-box input[type=password] {
  width: 100%;
  padding: 10px 14px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 15px;
  outline: none;
  margin-bottom: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.login-box input[type=password]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,130,230,0.12);
}

.login-box button {
  width: 100%;
  padding: 11px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.login-box button:hover { background: var(--accent2); }

/* ── App Layout ─────────────────────────────────────────────────────────────── */
.app-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 56px;
  background: var(--surface);
  border-bottom: 2px solid var(--accent);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,130,230,0.08);
}
.header-left { display: flex; align-items: center; gap: 12px; }
.app-logo { height: 36px; width: auto; object-fit: contain; }
.app-header h1 { font-size: 16px; font-weight: 700; color: var(--accent2); }
.app-header .header-right { display: flex; align-items: center; gap: 14px; }
.logout-btn {
  padding: 5px 14px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.15s, color 0.15s;
}
.logout-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Tabs */
.tab-bar {
  display: flex;
  gap: 0;
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  flex-shrink: 0;
}

.tab-btn {
  padding: 10px 18px;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.tab-btn:hover { color: var(--accent); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* Tab content */
.tab-content { display: none; flex: 1; overflow: auto; padding: 20px; }
.tab-content.active { display: block; }

/* ── Calculator Panels ───────────────────────────────────────────────────────── */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1400px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
}
.panel h2 {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* Form rows */
.form-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.form-row label {
  min-width: 130px;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
}
.form-row input, .form-row select {
  flex: 1;
  min-width: 80px;
  padding: 6px 10px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-row input:focus, .form-row select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,130,230,0.10);
}

.unit {
  color: var(--text-dim);
  font-size: 12px;
  min-width: 30px;
}

/* Material rows */
.material-row {
  background: var(--panel);
  border: 1px solid #ccdff7;
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 8px;
}
.material-row .row-title {
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 6px;
}

/* Accessories */
.accessories-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

/* Results panel */
.results-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
}
.results-panel h2 {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.result-row:last-child { border-bottom: none; }
.result-row .label { color: var(--text-dim); }
.result-row .value { font-family: var(--mono); font-weight: 600; color: var(--text); }
.result-row.highlight {
  background: var(--panel);
  margin: 2px -4px;
  padding: 8px 4px;
  border-radius: 4px;
  border-bottom: none;
}
.result-row.highlight .value { color: var(--accent); font-size: 15px; }

.multiplier-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 12px;
}
.multiplier-card {
  background: var(--panel);
  border: 1px solid #ccdff7;
  border-radius: var(--radius);
  padding: 10px;
  text-align: center;
}
.multiplier-card .mult-label { font-size: 11px; color: var(--text-dim); margin-bottom: 4px; }
.multiplier-card .mult-value { font-family: var(--mono); font-size: 14px; font-weight: 700; color: var(--accent2); }
.gain-label { font-size: 10px; color: var(--text-dim); margin-top: 6px; }
.gain-value { font-family: var(--mono); font-size: 12px; font-weight: 600; color: var(--success); }

/* Collapsible material blocks */
.material-row.collapsible .material-body { display: none; }
.material-row.collapsible.expanded .material-body { display: block; }
.collapsible-header {
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.toggle-icon { font-size: 10px; transition: transform 0.15s; }
.material-row.collapsible.expanded .toggle-icon { transform: rotate(90deg); }

.calc-btn {
  width: 100%;
  margin-top: 14px;
  padding: 10px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
}
.calc-btn:hover { background: var(--accent2); box-shadow: 0 2px 8px rgba(0,130,230,0.22); }

.reset-btn {
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 0 18px;
  width: auto;
}
.reset-btn:hover { color: var(--text); border-color: var(--text-dim); background: var(--row-alt); }

.mat-row-actions { display: flex; align-items: center; gap: 8px; }
.mat-reset-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  padding: 1px 4px;
  border-radius: 3px;
  line-height: 1;
}
.mat-reset-btn:hover { color: var(--danger); }

/* ── Settings Tab ────────────────────────────────────────────────────────────── */
.settings-layout { max-width: 500px; }

.logo-preview-wrap { margin-top: 12px; }
.logo-preview-wrap img {
  max-height: 80px;
  max-width: 240px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  display: block;
  background: var(--row-alt);
}
.logo-preview-wrap .btn-danger { margin-top: 8px; }

/* ── Figurine Layout ─────────────────────────────────────────────────────────── */
.figurine-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1000px;
}

/* ── Materials Admin Table ───────────────────────────────────────────────────── */
.materials-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.materials-toolbar input[type=search] {
  flex: 1;
  max-width: 280px;
  padding: 7px 12px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.materials-toolbar input[type=search]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,130,230,0.10);
}

.btn {
  padding: 7px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-secondary { background: transparent; color: var(--text-dim); border-color: var(--border); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn:hover { opacity: 0.8; }

.mat-table-wrap { overflow-x: auto; }

table.mat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
table.mat-table th {
  text-align: left;
  padding: 9px 10px;
  background: var(--panel);
  color: var(--accent2);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid #ccdff7;
  white-space: nowrap;
}
table.mat-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
table.mat-table tr:nth-child(even) td { background: var(--row-alt); }
table.mat-table tr:hover td { background: #eef4ff; }

table.mat-table input, table.mat-table select {
  width: 100%;
  padding: 4px 7px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12px;
  outline: none;
}
table.mat-table input:focus, table.mat-table select:focus { border-color: var(--accent); }
table.mat-table input[type=number] { text-align: right; }

.td-actions { display: flex; gap: 6px; }
.btn-icon {
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
}
.btn-icon.save { color: var(--success); border-color: var(--success); }
.btn-icon.delete { color: var(--danger); border-color: var(--danger); }
.btn-icon:hover { opacity: 0.75; }

/* ── Exchange Rates ──────────────────────────────────────────────────────────── */
.rates-panel {
  max-width: 600px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
}
.rates-panel h2 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.rates-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}
.rates-table th {
  text-align: left;
  padding: 7px 10px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  background: var(--panel);
}
.rates-table td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 14px;
}
.rates-table .currency { font-weight: 700; color: var(--accent); }
.rates-table .sell { font-weight: 700; color: var(--text); }
.rates-meta { font-size: 12px; color: var(--text-dim); margin-bottom: 12px; }
.rates-meta .source-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 6px;
}
.source-badge.ing { background: #ff6b00; color: #fff; }
.source-badge.fallback { background: var(--warn); color: #000; }

/* ── Scrollbar ─────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #ccdff7; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Gain row ─────────────────────────────────────────────────────────────────── */
.gain-row .value { color: var(--success); font-weight: 700; }
.gain-row.negative .value { color: var(--danger); }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
.tab-bar { overflow-x: auto; }

@media (max-width: 900px) {
  .calc-grid, .figurine-grid { grid-template-columns: 1fr; }
  .multiplier-grid { grid-template-columns: repeat(2, 1fr); }
  .accessories-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  /* Header */
  .app-header { height: 48px; padding: 0 12px; }
  .app-header h1 { font-size: 13px; }
  .app-logo { height: 26px; }
  .logout-btn { padding: 6px 10px; font-size: 12px; }

  /* Tab bar — horizontal scroll, no wrapping */
  .tab-bar { -webkit-overflow-scrolling: touch; padding: 0 8px; }
  .tab-bar::-webkit-scrollbar { display: none; }
  .tab-btn { padding: 10px 14px; font-size: 12px; flex-shrink: 0; }

  /* Tab content */
  .tab-content { padding: 10px; }

  /* Panels */
  .panel, .results-panel { padding: 12px; }

  /* Form rows — stack vertically */
  .form-row { flex-direction: column; align-items: stretch; gap: 4px; }
  .form-row label { min-width: unset; }
  .form-row input, .form-row select { min-width: unset; padding: 10px; font-size: 14px; }
  .unit { min-width: unset; }

  /* Buttons — easier to tap */
  .btn { padding: 10px 16px; font-size: 13px; }
  .calc-btn { padding: 13px; font-size: 14px; }

  /* Settings */
  .settings-layout { max-width: 100%; }

  /* Login page */
  .login-box { width: 90%; padding: 28px 20px; }
}