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

:root {
  --green: #00C853;
  --green-dim: #00C85320;
  --green-glow: #00C85340;
  --amber: #FFB300;
  --amber-dim: #FFB30020;
  --red: #FF3D00;
  --red-dim: #FF3D0020;
  --bg: #0A0A0F;
  --surface: #13131A;
  --surface-2: #1A1A24;
  --surface-3: #222230;
  --text: #E8E8ED;
  --text-dim: #8888A0;
  --border: #2A2A38;
  --purple: #7C3AED;
  --cyan: #06B6D4;
}

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

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
}

/* NAV */
.app-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  text-decoration: none;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 12px var(--green); opacity: 1; }
  50% { box-shadow: 0 0 24px var(--green); opacity: 0.8; }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-user {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.btn-logout {
  font-size: 0.75rem;
  color: var(--text-dim);
  background: none;
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-logout:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

/* MAIN LAYOUT */
.app-main {
  padding: 5rem 1.5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

/* AUTH SCREENS */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem;
  width: 100%;
  max-width: 420px;
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.auth-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.5px;
}

.auth-card .subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input, .form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: 'DM Sans', sans-serif;
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--green);
}

.form-group input::placeholder {
  color: var(--text-dim);
  opacity: 0.5;
}

.btn-primary {
  width: 100%;
  padding: 0.85rem;
  background: var(--green);
  color: #000;
  border: none;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: -0.3px;
}

.btn-primary:hover {
  background: #00E065;
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.auth-switch {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.auth-switch a {
  color: var(--green);
  text-decoration: none;
  cursor: pointer;
  font-weight: 500;
}

.auth-switch a:hover {
  text-decoration: underline;
}

.form-error {
  background: var(--red-dim);
  color: var(--red);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid #FF3D0030;
}

/* BALANCE CARD */
.balance-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
}

.balance-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.balance-card.status-amber::before {
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}

.balance-card.status-red::before {
  background: linear-gradient(90deg, transparent, var(--red), transparent);
}

.balance-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.balance-question {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
}

.balance-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.balance-status.green { color: var(--green); }
.balance-status.amber { color: var(--amber); }
.balance-status.red { color: var(--red); }

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.status-dot.amber { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.status-dot.red { background: var(--red); box-shadow: 0 0 8px var(--red); }

.balance-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -2px;
  margin-bottom: 0.25rem;
  line-height: 1;
}

.balance-number.green { color: var(--green); }
.balance-number.amber { color: var(--amber); }
.balance-number.red { color: var(--red); }

.balance-number .currency {
  font-size: 0.45em;
  color: var(--text-dim);
  font-weight: 500;
}

.balance-subtitle {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.balance-meta {
  display: flex;
  gap: 2rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.balance-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* BUCKETS */
.buckets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.bucket {
  text-align: center;
}

.bucket-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.bucket-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--surface-2);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.bucket-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.8s ease;
}

.bucket-fill.needs { background: var(--amber); }
.bucket-fill.savings { background: var(--green); }
.bucket-fill.goals { background: var(--purple); }
.bucket-fill.wants { background: var(--cyan); }

.bucket-amount {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
}

.bucket-detail {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.2rem;
}

/* SECTION HEADERS */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.section-header h2 {
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--green);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-add:hover {
  background: #00E065;
  transform: translateY(-1px);
}

/* COMMITMENTS LIST */
.commitments-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.commitment-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color 0.2s;
}

.commitment-item:hover {
  border-color: var(--text-dim);
}

.commitment-info {
  flex: 1;
}

.commitment-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.commitment-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.commitment-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.commitment-amounts {
  text-align: right;
}

.commitment-total {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1rem;
}

.commitment-monthly {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.commitment-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.btn-icon:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

.btn-icon.delete:hover {
  color: var(--red);
  border-color: var(--red);
}

.bucket-tag {
  display: inline-block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
}

.bucket-tag.needs { background: #FFB30015; color: var(--amber); }
.bucket-tag.savings { background: #00C85315; color: var(--green); }
.bucket-tag.goals { background: #7C3AED15; color: var(--purple); }
.bucket-tag.wants { background: #06B6D415; color: var(--cyan); }

/* EMPTY STATE */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-dim);
}

.empty-state .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.empty-state p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.empty-state .hint {
  font-size: 0.8rem;
  opacity: 0.7;
}

/* MODAL */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  position: relative;
  overflow: hidden;
}

.modal::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.modal h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.3px;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.modal-actions .btn-primary {
  flex: 1;
}

.btn-secondary {
  flex: 1;
  padding: 0.75rem;
  background: var(--surface-2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  color: var(--text);
  border-color: var(--text-dim);
}

/* INCOME SETUP CARD */
.income-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 2rem;
}

.income-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.income-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.pct-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.pct-group {
  position: relative;
}

.pct-group input {
  width: 100%;
  padding: 0.65rem 2rem 0.65rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  outline: none;
}

.pct-group input:focus {
  border-color: var(--green);
}

.pct-group .pct-symbol {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 0.85rem;
  pointer-events: none;
}

.pct-group label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  font-weight: 500;
}

.wants-derived {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.wants-derived .label {
  color: var(--text-dim);
}

.wants-derived .value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--cyan);
}

.btn-save-income {
  padding: 0.65rem 1.5rem;
  background: var(--green);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 0.5rem;
}

.btn-save-income:hover {
  background: #00E065;
}

/* ONBOARDING */
.onboarding-card {
  background: var(--surface);
  border: 1px solid var(--green-dim);
  border-radius: 20px;
  padding: 3rem;
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.onboarding-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.onboarding-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.onboarding-card p {
  color: var(--text-dim);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

/* LOADING */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  color: var(--text-dim);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 0.75rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* DATE INPUTS */
input[type="date"] {
  color-scheme: dark;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .app-nav { padding: 0.85rem 1.25rem; }
  .app-main { padding: 4.5rem 1rem 2rem; }
  .balance-card { padding: 1.75rem; }
  .buckets-grid { grid-template-columns: repeat(2, 1fr); }
  .commitment-item { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .commitment-right { width: 100%; justify-content: space-between; }
  .income-row { grid-template-columns: 1fr; }
  .pct-row { grid-template-columns: 1fr 1fr 1fr; }
  .auth-card { padding: 2rem; }
  .modal { padding: 2rem; }
  .balance-number { font-size: 3rem; }
}

@media (max-width: 400px) {
  .pct-row { grid-template-columns: 1fr; }
}

/* TOAST */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1.5rem;
  font-size: 0.85rem;
  z-index: 300;
  transition: transform 0.3s ease;
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  border-color: var(--green);
  color: var(--green);
}

.toast.error {
  border-color: var(--red);
  color: var(--red);
}