@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@400;500;700&display=swap');

:root {
  --bg: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text: #ffffff;
  --text-muted: #888888;
  --accent: #ff3c00;
  --border: #333333;
  --success: #00ff88;
  --warning: #ffcc00;
  --danger: #ff4444;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 500px;
  margin: 0 auto;
  padding: 20px;
}

.header {
  text-align: center;
  padding: 30px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.header h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 10px;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.tagline {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.progress-bar {
  background: var(--border);
  height: 4px;
  margin: 20px 0 10px;
  overflow: hidden;
}

.progress {
  background: var(--accent);
  height: 100%;
  width: 20%;
  transition: width 0.3s ease;
}

.step-indicator {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.form-container { position: relative; }
.step { display: none; animation: fadeIn 0.3s ease; }
.step.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.step h2 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: var(--text);
  letter-spacing: 0.05em;
}

.hint {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 20px;
}

.input-group { margin-bottom: 20px; }
.input-group label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  overflow: hidden;
}

.input-wrapper input {
  flex: 1;
  padding: 14px;
  font-size: 1.125rem;
  background: transparent;
  border: none;
  color: var(--text);
  text-align: right;
  font-family: 'Inter', sans-serif;
}

.input-wrapper input:focus { outline: none; }
.input-wrapper input::placeholder { color: var(--text-muted); }
.input-wrapper .unit {
  padding: 14px;
  color: var(--text-muted);
  font-size: 0.875rem;
  background: var(--bg-tertiary);
}

select {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  cursor: pointer;
}
select:focus { outline: none; border-color: var(--accent); }

.expense-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.expense-grid .input-group { margin-bottom: 0; }
.expense-grid .input-wrapper input { font-size: 0.875rem; padding: 10px; }

.expense-total, .income-total, .sales-total, .profit-preview {
  text-align: right;
  font-size: 1.125rem;
  color: var(--accent);
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  font-weight: 700;
}

.income-section, .expense-section { margin-bottom: 24px; }
.income-section h3, .expense-section h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

.deduction-list { margin-bottom: 20px; }
.deduction-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 16px;
  margin-bottom: 2px;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 0.9rem;
}
.checkbox-wrapper input { display: none; }
.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--accent);
  margin-right: 12px;
  position: relative;
  flex-shrink: 0;
}
.checkbox-wrapper input:checked + .checkmark { background: var(--accent); }
.checkbox-wrapper input:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg);
  font-size: 0.875rem;
  font-weight: 700;
}

.deduction-input { margin-top: 12px; display: flex; align-items: center; }
.deduction-input input {
  flex: 1;
  padding: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.875rem;
  text-align: right;
  font-family: 'Inter', sans-serif;
}
.deduction-input input:focus { outline: none; border-color: var(--accent); }
.deduction-input .unit { margin-left: 8px; color: var(--text-muted); }

.radio-group { display: flex; flex-direction: column; gap: 2px; }
.radio-wrapper {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 0.875rem;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
}
.radio-wrapper input { display: none; }
.radio-mark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent);
  margin-right: 12px;
  position: relative;
  flex-shrink: 0;
}
.radio-wrapper input:checked + .radio-mark::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: var(--accent);
}

.info-box {
  padding: 16px;
  margin-bottom: 20px;
  border-left: 4px solid var(--border);
  background: var(--bg-secondary);
}
.info-box.warning { border-left-color: var(--warning); }
.info-box.success { border-left-color: var(--success); }
.info-box.tip { border-left-color: var(--accent); }
.info-box h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  color: var(--warning);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.info-box.success h3 { color: var(--success); }
.info-box.tip h3 { color: var(--accent); }
.info-box p { font-size: 0.875rem; line-height: 1.6; }
.info-box ul { margin-left: 1.5rem; margin-top: 0.5rem; }
.info-box li { font-size: 0.875rem; margin-bottom: 0.25rem; }
.info-box .small { font-size: 0.75rem; color: var(--text-muted); margin-top: 8px; }

.btn {
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: 'Inter', sans-serif;
}
.next-btn { background: var(--accent); color: var(--bg); width: 100%; }
.next-btn:hover { background: #ff5500; }
.back-btn { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.back-btn:hover { border-color: var(--text-muted); color: var(--text); }
.btn-group { display: flex; gap: 12px; }
.btn-group .back-btn { flex: 1; }
.btn-group .next-btn { flex: 2; }

.result-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 24px;
}
.result-section {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.result-section:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.result-section h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.result-row { display: flex; justify-content: space-between; padding: 8px 0; font-size: 0.875rem; }
.result-row.total {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.result-final {
  margin-top: 20px;
  padding: 20px;
  text-align: center;
  border: 2px solid var(--border);
}
.result-final.pay { border-color: var(--danger); }
.result-final.refund { border-color: var(--success); }
.result-final .amount {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  margin: 8px 0;
  letter-spacing: 0.05em;
}
.result-final.pay .amount { color: var(--danger); }
.result-final.refund .amount { color: var(--success); }
.result-final .label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.next-actions {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 24px;
}
.next-actions h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1rem;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}
.next-actions ol { margin-left: 20px; margin-bottom: 16px; }
.next-actions li { margin-bottom: 8px; font-size: 0.875rem; }
.external-btn {
  display: block;
  text-align: center;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
}
.external-btn:hover { background: #ff5500; }

.footer {
  text-align: center;
  padding: 30px 0;
  border-top: 1px solid var(--border);
  margin-top: 30px;
}
.footer > p { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 20px; }
.other-tools { margin-top: 16px; }
.other-tools p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.other-tools a {
  display: inline-block;
  margin: 4px;
  padding: 8px 16px;
  background: transparent;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.other-tools a:hover { border-color: var(--accent); }

@media (max-width: 400px) {
  .expense-grid { grid-template-columns: 1fr; }
  .header h1 { font-size: 1.75rem; }
}