:root {
  --blue: #2563eb;
  --blue-light: #dbeafe;
  --dark: #111827;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --bg: #f9fafb;
  --surface: #ffffff;
  --radius: 8px;
  --gold: #d97706;
  --gold-light: #fef3c7;
  --green: #059669;
  --green-light: #d1fae5;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6; }

.nav { background: var(--dark); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; height: 56px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-weight: 800; font-size: 1.1rem; color: white; text-decoration: none; display: flex; align-items: center; gap: 0.5rem; }
.logo-au { background: var(--gold); color: #111; padding: 0.1rem 0.4rem; border-radius: 4px; font-size: 0.7rem; font-weight: 800; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { color: #9ca3af; text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: white; }

.btn { display: inline-flex; align-items: center; padding: 0.55rem 1.2rem; border-radius: var(--radius); font-size: 0.9rem; font-weight: 600; cursor: pointer; text-decoration: none; border: none; font-family: var(--font); transition: opacity 0.15s; }
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--blue); color: white; }
.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: #dc2626; color: white; }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.8rem; }

.app-layout { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 56px); }
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 1.5rem 0; display: flex; flex-direction: column; justify-content: space-between; }
.sidebar-nav { display: flex; flex-direction: column; gap: 0.25rem; padding: 0 0.75rem; }
.sidebar-link { display: block; padding: 0.55rem 0.75rem; border-radius: var(--radius); color: var(--text); text-decoration: none; font-size: 0.9rem; }
.sidebar-link:hover, .sidebar-link.active { background: var(--bg); color: var(--blue); font-weight: 600; }
.sidebar-upgrade { display: block; margin-top: 1rem; padding: 0.55rem 0.75rem; border-radius: var(--radius); background: var(--blue-light); color: var(--blue); text-decoration: none; font-size: 0.85rem; font-weight: 600; text-align: center; }
.sidebar-user { padding: 1rem 1.5rem; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--muted); word-break: break-all; }
.app-main { padding: 2rem; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.card-title { font-size: 1.1rem; font-weight: 700; color: var(--dark); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { font-weight: 600; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; background: var(--bg); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }

.form-group { margin-bottom: 1.25rem; }
label { display: block; font-weight: 600; font-size: 0.85rem; color: var(--dark); margin-bottom: 0.4rem; }
input, select, textarea { width: 100%; padding: 0.65rem 0.85rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.9rem; font-family: var(--font); background: var(--surface); color: var(--text); }
input:focus, select:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.form-hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.3rem; }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.page-title { font-size: 1.5rem; font-weight: 800; color: var(--dark); }
.page-subtitle { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }

.hero { background: var(--dark); color: white; padding: 5rem 1.5rem; }
.hero-inner { max-width: 700px; margin: 0 auto; }
.hero h1 { font-size: 2.75rem; font-weight: 900; line-height: 1.1; margin-bottom: 1rem; }
.hero h1 span { color: var(--gold); }
.hero p { font-size: 1.1rem; color: #9ca3af; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; }
.hero-flag { font-size: 1.5rem; margin-bottom: 1rem; }

.section { max-width: 1100px; margin: 0 auto; padding: 4rem 1.5rem; }
.section-title { font-size: 1.75rem; font-weight: 800; color: var(--dark); text-align: center; margin-bottom: 0.5rem; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 3rem; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.feature-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.feature-card p { color: var(--muted); font-size: 0.9rem; }

.pay-summary { background: var(--blue-light); border: 1px solid #93c5fd; border-radius: var(--radius); padding: 1.5rem; margin-top: 1.5rem; }
.pay-summary h3 { font-size: 1rem; font-weight: 700; color: var(--blue); margin-bottom: 1rem; }
.pay-row { display: flex; justify-content: space-between; font-size: 0.9rem; padding: 0.4rem 0; border-bottom: 1px solid #bfdbfe; }
.pay-row:last-child { border-bottom: none; font-weight: 700; font-size: 1rem; }
.pay-total { font-size: 2rem; font-weight: 900; color: var(--dark); margin-top: 1rem; }

.auth-wrap { min-height: calc(100vh - 56px); display: flex; align-items: center; justify-content: center; padding: 2rem; }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.5rem; width: 100%; max-width: 420px; }
.auth-title { font-size: 1.5rem; font-weight: 800; color: var(--dark); margin-bottom: 0.4rem; }
.auth-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 2rem; }

.alert { padding: 0.9rem 1.25rem; border-radius: var(--radius); font-size: 0.9rem; margin-bottom: 1.25rem; border: 1px solid; }
.alert-success { background: var(--green-light); color: #065f46; border-color: #6ee7b7; }
.alert-error { background: #fee2e2; color: #991b1b; border-color: #fca5a5; }
.alert-info { background: var(--gold-light); color: #92400e; border-color: #fcd34d; }

.badge { display: inline-flex; align-items: center; padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge-blue { background: var(--blue-light); color: var(--blue); }
.badge-green { background: var(--green-light); color: var(--green); }

.empty { text-align: center; padding: 4rem 2rem; color: var(--muted); }
.empty h3 { font-size: 1.1rem; color: var(--dark); margin-bottom: 0.5rem; }
.empty p { font-size: 0.9rem; margin-bottom: 1.5rem; }

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; max-width: 700px; margin: 0 auto; }
.pricing-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.pricing-card.featured { border-color: var(--blue); box-shadow: 0 0 0 2px var(--blue); }
.pricing-name { font-weight: 700; font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.pricing-price { font-size: 2.5rem; font-weight: 900; color: var(--dark); margin: 0.5rem 0; }
.pricing-price span { font-size: 1rem; font-weight: 400; color: var(--muted); }
.pricing-features { list-style: none; margin: 1.5rem 0; display: flex; flex-direction: column; gap: 0.6rem; }
.pricing-features li { font-size: 0.9rem; }
.pricing-features li::before { content: '+ '; color: var(--blue); font-weight: 700; }

.footer { background: var(--dark); color: #6b7280; padding: 2rem 1.5rem; font-size: 0.85rem; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: inherit; text-decoration: none; }

/* Timesheet table */
.timesheet-grid { display: grid; gap: 0.75rem; }
.timesheet-row { display: grid; grid-template-columns: 100px 1fr 1fr 1fr 1fr 1fr 80px; gap: 0.5rem; align-items: center; }
.timesheet-row input[type="number"] { padding: 0.4rem 0.5rem; text-align: center; }
.timesheet-label { font-weight: 600; font-size: 0.85rem; }
.timesheet-head { font-size: 0.75rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }