/* ─────────────────────────────────────────────────────────────
   PayCast — Dark Financial Dashboard
   Font: Syne (headings) + Space Mono (numbers/mono)
   ───────────────────────────────────────────────────────────── */

:root {
  --bg:           #0d0f14;
  --bg-card:      #141820;
  --bg-input:     #1a1f2b;
  --bg-hover:     #1f2535;
  --border:       #2a3040;
  --border-light: #333d50;

  --text-primary:   #e8eaf0;
  --text-secondary: #8a93a8;
  --text-muted:     #555f75;

  --accent-primary: #4d9fff;
  --accent-green:   #3ecf6e;
  --accent-amber:   #f5a623;
  --accent-red:     #ff5555;

  --pension-colour: #a78bfa;
  --tax-colour:     #fb923c;
  --ni-colour:      #38bdf8;
  --takehome-colour:#3ecf6e;

  --font-display: 'Syne', sans-serif;
  --font-mono:    'Space Mono', monospace;

  --radius:    8px;
  --radius-lg: 12px;

  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
}

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

html { font-size: 16px; }

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

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--accent-primary);
  font-weight: 700;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-hover); }
.nav-link.active { color: var(--accent-primary); }

/* ── Main Content ────────────────────────────────────────────── */
.main-content {
  max-width: 1300px;
  margin: 0 auto;
  padding: 2rem;
}

/* ── Flash Messages ──────────────────────────────────────────── */
.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid;
}
.flash--success { background: rgba(62,207,110,0.1); border-color: var(--accent-green); color: var(--accent-green); }
.flash--error   { background: rgba(255,85,85,0.1);  border-color: var(--accent-red);   color: var(--accent-red);   }
.flash--info    { background: rgba(77,159,255,0.1); border-color: var(--accent-primary); color: var(--accent-primary); }

/* ── Page Header ─────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 1.75rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.2rem;
}

.page-header__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn--primary { background: var(--accent-primary); color: #0d0f14; }
.btn--primary:hover { background: #6bb3ff; }
.btn--ghost { background: transparent; border-color: var(--border-light); color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); border-color: var(--text-secondary); }
.btn--danger { background: transparent; border-color: var(--accent-red); color: var(--accent-red); }
.btn--danger:hover { background: rgba(255,85,85,0.1); }
.btn--lg { padding: 0.7rem 1.5rem; font-size: 1rem; }
.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  font-size: 0.9rem;
  transition: color 0.15s;
  line-height: 1;
}
.btn-icon:hover { color: var(--text-primary); }

/* ── Summary Bar ─────────────────────────────────────────────── */
.summary-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
  .summary-bar { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .summary-bar { grid-template-columns: repeat(2, 1fr); }
}

.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.summary-card--highlight {
  border-color: var(--accent-primary);
  background: rgba(77,159,255,0.06);
}

.summary-card__label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.summary-card__value {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* ── Accents ─────────────────────────────────────────────────── */
.accent-pension { color: var(--pension-colour); }
.accent-tax     { color: var(--tax-colour); }
.accent-ni      { color: var(--ni-colour); }

/* ── PAYE Variance Banner ─────────────────────────────────────── */
.variance-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.variance-banner--green  { border-color: var(--accent-green); background: rgba(62,207,110,0.07); }
.variance-banner--amber  { border-color: var(--accent-amber); background: rgba(245,166,35,0.07); }
.variance-banner--red    { border-color: var(--accent-red);   background: rgba(255,85,85,0.07);  }

.variance-banner__icon {
  font-size: 1.4rem;
  font-weight: 700;
  flex-shrink: 0;
}
.variance-banner--green .variance-banner__icon  { color: var(--accent-green); }
.variance-banner--amber .variance-banner__icon  { color: var(--accent-amber); }
.variance-banner--red .variance-banner__icon    { color: var(--accent-red); }

.variance-banner__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.variance-banner__body strong { font-weight: 700; font-size: 0.95rem; }
.variance-banner__detail { font-size: 0.8rem; color: var(--text-secondary); }

.variance-banner__numbers {
  display: flex;
  gap: 1.5rem;
}

.variance-number {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: right;
}

.variance-number__label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.variance-number__value { font-family: var(--font-mono); font-size: 0.95rem; font-weight: 700; }

/* ── Dashboard Grid ──────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 1000px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* ── Card ────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.card__title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Data Table ──────────────────────────────────────────────── */
.table-scroll { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td { background: var(--bg-hover); }

.row--commission td:first-child { border-left: 2px solid var(--accent-amber); }
.row--adhoc      td:first-child { border-left: 2px solid var(--pension-colour); }

.text-right { text-align: right; }
.mono { font-family: var(--font-mono); font-size: 0.8rem; }

.month-label { font-weight: 600; }
.take-home-cell { color: var(--accent-green); font-weight: 700; }

.action-cell { width: 2rem; text-align: center; }

/* ── Badges ──────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-left: 0.3rem;
  vertical-align: middle;
}
.badge--commission { background: rgba(245,166,35,0.15); color: var(--accent-amber); }
.badge--adhoc      { background: rgba(167,139,250,0.15); color: var(--pension-colour); }
.badge--multi      { background: rgba(77,159,255,0.15); color: var(--accent-primary); }

/* ── Inline Variance ─────────────────────────────────────────── */
.inline-variance {
  font-size: 0.7rem;
  font-weight: 700;
  margin-left: 0.25rem;
  cursor: help;
}
.inline-variance--over  { color: var(--accent-green); }
.inline-variance--under { color: var(--accent-red); }

/* ── Row Detail ──────────────────────────────────────────────── */
.row-detail.hidden { display: none; }

.detail-entries {
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.detail-entry {
  display: flex;
  gap: 1rem;
  align-items: center;
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
  background: var(--bg-input);
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.detail-entry__date   { font-family: var(--font-mono); color: var(--text-secondary); }
.detail-entry__type   { font-weight: 700; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.06em; }
.detail-entry__label  { color: var(--text-secondary); flex: 1; }
.detail-entry__amount { font-family: var(--font-mono); font-weight: 700; margin-left: auto; }

.detail-entry__actions { display: flex; gap: 0.4rem; }
.detail-entry__actions a {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: all 0.15s;
}
.detail-entry__actions a:hover { color: var(--text-primary); border-color: var(--border-light); }

/* ── Forecast Card ───────────────────────────────────────────── */
.forecast-card { position: sticky; top: 80px; }

.forecast-month-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--accent-primary);
  background: rgba(77,159,255,0.1);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.forecast-inputs {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.form-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.form-row .form-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 110px;
  font-weight: 600;
  margin-bottom: 0;
}

.forecast-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.forecast-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 0.1rem 0;
}

.forecast-line span:first-child { font-weight: 500; }
.forecast-line .mono { font-size: 0.875rem; font-weight: 700; color: var(--text-primary); }
.forecast-line.accent-pension .mono { color: var(--pension-colour); }
.forecast-line.accent-tax .mono     { color: var(--tax-colour); }
.forecast-line.accent-ni .mono      { color: var(--ni-colour); }

.forecast-line--total {
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1rem;
}

.forecast-line--total .mono {
  font-size: 1.2rem;
  color: var(--accent-green) !important;
}

.forecast-diff {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-input);
  border-radius: var(--radius);
  font-size: 0.8rem;
}

.forecast-diff__label { color: var(--text-muted); }
.forecast-diff__value { font-family: var(--font-mono); font-weight: 700; }
.forecast-diff__value.positive { color: var(--accent-green); }
.forecast-diff__value.negative { color: var(--accent-red); }

/* ── Empty State ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  max-width: 420px;
  margin: 0 auto;
}
.empty-state__icon { font-size: 3rem; color: var(--accent-primary); margin-bottom: 1rem; }
.empty-state__title { font-size: 1.5rem; font-weight: 800; margin-bottom: 0.75rem; }
.empty-state__body { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 0.95rem; }

/* ── Form Container ──────────────────────────────────────────── */
.form-container {
  max-width: 760px;
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  border: none;
}

.form-section__title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: block;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.form-section__hint { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--text-muted); margin-left: 0.5rem; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.5rem;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-hint { font-size: 0.75rem; color: var(--text-muted); }
.required   { color: var(--accent-primary); }

.form-input, .select-input {
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.55rem 0.75rem;
  width: 100%;
  transition: border-color 0.15s;
  appearance: none;
}

.form-input:focus, .select-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(77,159,255,0.2);
}

.input-with-prefix, .input-with-suffix {
  display: flex;
  align-items: stretch;
}

.input-prefix, .input-suffix {
  background: var(--border);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 0.55rem 0.6rem;
  display: flex;
  align-items: center;
}

.input-prefix {
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
}
.input-suffix {
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.input-with-prefix .form-input { border-radius: 0 var(--radius) var(--radius) 0; }
.input-with-suffix .form-input { border-radius: var(--radius) 0 0 var(--radius); }

/* Toggle */
.toggle { display: flex; align-items: center; gap: 0.6rem; cursor: pointer; }
.toggle input[type="checkbox"] { display: none; }

.toggle__slider {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  transition: background 0.2s;
  flex-shrink: 0;
}

.toggle__slider::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.toggle input:checked + .toggle__slider { background: rgba(77,159,255,0.2); border-color: var(--accent-primary); }
.toggle input:checked + .toggle__slider::after { transform: translateX(16px); background: var(--accent-primary); }

.toggle__label { font-size: 0.85rem; color: var(--text-secondary); }

/* Form actions */
.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding-top: 0.5rem;
}

/* Year selector */
.year-selector .select-input { width: auto; min-width: 100px; }

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1.4rem;
  font-weight: 800;
}

.btn--full { width: 100%; justify-content: center; }