:root {
  --brand: #006400;       /* deep green */
  --accent: #FFD700;      /* gold */
  --text: #333;
  --border: #ccc;
  --muted: #666;
}

/* Base layout */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: var(--text);
  padding-top: 60px; /* ✅ prevent content hiding under fixed navbar */
}

.container { padding: 20px; max-width: 100%; }

/* Navbar */
.navbar {
  background-color: var(--brand);
  padding: 10px;
  display: flex; justify-content: space-between; align-items: center;
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
}
.navbar .brand { color: #fff; font-weight: bold; font-size: 18px; display:flex; align-items:center; gap:8px; }
.nav-logo { height: 28px; }
.navbar .menu-toggle { background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; display: none; }
.nav-links { display: flex; gap: 15px; align-items: center; }
.nav-links a { color: #fff; text-decoration: none; font-weight: bold; }
.nav-links a i { margin-right: 6px; color: var(--accent); }

/* Dropdowns */
.dropdown { position: relative; }
.dropdown-content {
  display: none; position: absolute; background-color: #fff; min-width: 180px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1); z-index: 10; border-radius: 8px; overflow: hidden;
}
.dropdown-content a { color: var(--brand); padding: 10px 12px; text-decoration: none; display: block; }
.dropdown-content a:hover { background-color: var(--accent); color: var(--brand); }
.dropdown:hover .dropdown-content { display: block; }

/* Dashboard */
.dashboard-container { max-width: 600px; margin: 0 auto; padding: 20px; text-align: center; }
.dashboard-container h2, h3 { margin-bottom: 15px; color: var(--brand); }
.summary p { font-size: 18px; margin: 8px 0; font-weight: bold; color: var(--brand); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 10px; background: #fff; }
th { background: var(--accent); color: var(--brand); }
th, td { padding: 8px; text-align: left; border: none; }

/* Buttons */
.nav-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 20px; }
.nav-btn {
  background-color: var(--brand); color: white; padding: 10px 18px; text-decoration: none;
  font-size: 16px; border-radius: 6px; transition: background-color 0.3s ease; display:inline-block;
}
.nav-btn:hover { background-color: var(--accent); color: var(--brand); }
.info { color: var(--brand); background: #fff; border: 1px solid var(--border); padding: 8px 12px; border-radius: 8px; }

/* Receipts */
.receipt-box {
  width: 480px; max-width: 95%; margin: 20px auto; padding: 20px; background: #fff;
  border: 1px solid var(--brand); border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08); font-size: 15px; line-height: 1.6;
}
.new-receipt-form {
  max-width: 500px; margin: 20px auto; padding: 20px; border: 1px solid var(--border);
  border-radius: 12px; background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.receipt-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.receipt-logo { height: 100px; flex-shrink: 0; }
.receipt-title { font-size: 22px; font-weight: bold; color: var(--brand); margin: 0; }
.title { text-align: center; font-size: 18px; font-weight: bold; color: var(--brand); margin-bottom: 10px; }
.row { display: flex; justify-content: space-between; margin: 6px 0; border-bottom: 1px solid #eee; padding-bottom: 4px; }
.label { font-weight: 600; color: var(--brand); }
.value { color: var(--text); }
.footer { margin-top: 12px; text-align: center; font-size: 0.9em; color: var(--muted); }
.qr { text-align: center; margin-top: 10px; }

/* Forms */
.settings-box, .expense-form, .new-receipt-form {
  max-width: 500px; margin: 20px auto; padding: 20px; border: 1px solid var(--border);
  border-radius: 12px; background: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.settings-box label, .expense-form label, .new-receipt-form label {
  font-weight: 600; margin-top: 12px; display: block; color: var(--brand);
}
.settings-box input, .expense-form input, .new-receipt-form input, .new-receipt-form select {
  width: 100%; padding: 10px; border-radius: 8px; border: 1px solid var(--border); margin-bottom: 10px;
}
.settings-box button, .expense-form button, .new-receipt-form button {
  margin-top: 12px; background: var(--brand); color: #fff; border: none; padding: 10px 18px; border-radius: 6px; cursor: pointer;
}
.settings-box button:hover, .expense-form button:hover, .new-receipt-form button:hover { background: var(--accent); color: var(--brand); }

/* History tables */
.history-table {
  width: 100%; border-collapse: collapse; margin-top: 20px; background: #fff; border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.history-table th { background: var(--accent); color: var(--brand); padding: 12px; text-align: left; }
.history-table td { padding: 12px; border-bottom: none; }

/* Calendar grid */
.calendar { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-top: 12px; }
.day {
  background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.day.present { border-color: var(--brand); }
.day.holiday { border-color: #b22222; }
.calendar-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.calendar-table th, .calendar-table td {
  padding: 10px;
  border: 1px solid #ccc;
  text-align: left;
}

.school-day {
  background-color: #e0f7e0; /* light green */
}

.holiday {
  background-color: #ffe0e0; /* light red */
}
.filter-form {
  margin: 15px 0;
}

.filter-form select {
  padding: 5px;
  font-size: 14px;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .nav-links {
    flex-direction: column;
    background-color: var(--brand);
    position: absolute; top: 56px; left: 0; width: 100%; padding: 10px;
    max-height: 0; overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    opacity: 0;
  }
  .nav-links.active {
    max-height: 500px; /* enough space for links */
    opacity: 1;
  }
  .nav-links a { padding: 10px; border-bottom: 1px solid rgba(255,255,255,0.2); }
  .navbar .menu-toggle { display: block; }
  .nav-logo { height: 24px; }
  .receipt-box { width: 95%; padding: 16px; font-size: 14px; }
  .receipt-logo { height: 80px; }
  .receipt-title { font-size: 20px; }
}

/* Alerts */
.alert {
  padding: 12px 20px;
  margin: 15px 0;
  border-radius: 5px;
  font-size: 0.95em;
  animation: fadeOut 5s forwards; /* ✅ auto fade after 5s */
}

.alert.success {
  background-color: #d4edda; /* light green */
  color: #155724;           /* dark green text */
  border: 1px solid #c3e6cb;
}
.error-box {
  text-align: center;
  padding: 40px;
  color: red;
}