* { box-sizing: border-box; }
body { font-family: 'Segoe UI', Arial, sans-serif; background: #f2f4f7; margin: 0; padding: 20px; color: #222; }
.screen.hidden { display: none; }
.card { background: #fff; border-radius: 12px; padding: 20px 24px; margin: 0 auto 20px auto; max-width: 900px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.login-card { max-width: 380px; margin-top: 80px; text-align: center; }
.login-card input { width: 100%; padding: 10px; margin: 12px 0; border: 1px solid #ccc; border-radius: 8px; font-size: 16px; }
header { max-width: 900px; margin: 0 auto 20px auto; display: flex; justify-content: space-between; align-items: center; }
h1 { font-size: 1.4rem; margin: 0; }
h2 { margin-top: 0; font-size: 1.1rem; color: #333; }
button { cursor: pointer; border: none; border-radius: 8px; padding: 10px 18px; font-size: 15px; font-weight: 600; transition: opacity 0.15s; }
button:hover { opacity: 0.85; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.primary-btn { background: #2f80ed; color: #fff; }
.danger-btn { background: #eb5757; color: #fff; }
.secondary-btn { background: #e0e0e0; color: #333; }
.hidden { display: none !important; }
.error-msg { color: #eb5757; min-height: 20px; font-size: 14px; }
.timer-card { text-align: center; }
.live-timer { font-size: 2.4rem; font-weight: 700; margin: 12px 0; color: #2f80ed; }
#current-status { color: #555; margin-bottom: 8px; }
.summary-grid { display: flex; gap: 16px; flex-wrap: wrap; }
.summary-box { flex: 1; min-width: 140px; background: #f7f9fc; border-radius: 10px; padding: 14px; text-align: center; }
.highlight-box { background: #eef7ee; }
.summary-label { display: block; font-size: 0.85rem; color: #777; margin-bottom: 6px; }
.summary-value { display: block; font-size: 1.3rem; font-weight: 700; color: #2f80ed; }
.summary-value.positive { color: #27ae60; }
.summary-value.negative { color: #eb5757; }
.info-text { font-size: 0.8rem; color: #999; margin-top: 12px; }
.form-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.form-row label { display: flex; flex-direction: column; font-size: 0.85rem; color: #555; gap: 4px; }
.form-row input, .form-row select { padding: 8px; border: 1px solid #ccc; border-radius: 6px; font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid #eee; }
th { color: #777; font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
.hours-input { width: 80px; padding: 4px 6px; border: 1px solid #ccc; border-radius: 6px; }
.delete-btn { background: transparent; color: #eb5757; padding: 4px 8px; font-size: 14px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 0.75rem; font-weight: 600; }
.badge-work { background: #e3f2fd; color: #2f80ed; }
.badge-vacation { background: #fdecea; color: #eb5757; }
.text-positive { color: #27ae60; font-weight: 600; }
.text-negative { color: #eb5757; font-weight: 600; }
@media (max-width: 600px) {
  header { flex-direction: column; gap: 10px; align-items: flex-start; }
  .summary-grid { flex-direction: column; }
}