:root {
    --primary-color: #0866ff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-gray: #f0f2f5;
    --medium-gray: #ddd;
    --dark-gray: #606770;
    --text-color: #1c2121;
    --bg-color: #ffffff;
    --bg-secondary-color: #f7f7f7;
    --border-color: #ddd;
    --modal-shadow: rgba(0,0,0,0.15);
}

.dark-mode {
    --primary-color: #4595ff;
    --success-color: #34c759;
    --danger-color: #ff453a;
    --light-gray: #000000;
    --medium-gray: #3a3a3c;
    --dark-gray: #98989d;
    --text-color: #ffffff;
    --bg-color: #1c1c1e;
    --bg-secondary-color: #2c2c2e;
    --border-color: #3a3a3c;
    --modal-shadow: rgba(0,0,0,0.5);
}

html {
    height: 100%;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--light-gray);
    color: var(--text-color);
    margin: 0;
    height: 100%;
    overflow: hidden; /* Prevent body scrolling */
    transition: background-color 0.3s, color 0.3s;
}
.container {
    background-color: var(--bg-color);
    text-align: center;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s;
}

/* --- Menu Bar / Tabs Styles --- */
.menu-bar {
    margin-bottom: 0;
    display: flex;
    justify-content: flex-start;
    border-bottom: 1px solid var(--border-color);
    padding: 10px 15px 0 15px;
    flex-shrink: 0;
    flex-wrap: nowrap; /* Prevent tabs from wrapping */
    overflow-x: auto; /* Allow horizontal scrolling if needed */
}
.menu-bar::-webkit-scrollbar {
    height: 3px;
}
.menu-bar::-webkit-scrollbar-track {
    background: transparent;
}
.menu-bar::-webkit-scrollbar-thumb {
    background-color: var(--medium-gray);
    border-radius: 3px;
}
.menu-btn, .tab-btn {
    background: none;
    border: none;
    color: var(--text-color);
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 4px 4px 0 0;
    transition: background-color 0.2s, color 0.2s;
    margin-bottom: -1px; /* Overlap the bottom border */
    border: 1px solid transparent;
}
.menu-btn:hover, .tab-btn:hover {
    background-color: var(--bg-secondary-color);
}
.tab-btn.active {
    border-color: var(--border-color) var(--border-color) var(--bg-color) var(--border-color);
    background-color: var(--bg-color);
    font-weight: 500;
}

.help-tab-btn {
    margin-left: auto; /* Push to the far right */
    font-weight: bold;
    font-size: 1.1em;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50% !important;
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    margin-bottom: 0 !important;
    border: 1px solid transparent !important;
    line-height: 1;
}

.help-tab-btn.active {
    border-color: var(--border-color) !important;
    background-color: var(--bg-secondary-color);
    font-size: 1.8em;
}


/* --- View Containers --- */
.view { flex-grow: 1; overflow: hidden; display: flex; flex-direction: column; }
#timeclock-view .top-content { padding: 20px 20px 0 20px; }
#timeclock-view .log-container { flex-grow: 1; overflow-y: auto; padding: 0 20px 20px 20px; }
#manual-entry-view { padding: 20px; text-align: left; overflow-y: auto; }
#help-view { padding: 20px; text-align: left; overflow-y: auto; line-height: 1.6; }
#help-view h3 { margin-top: 25px; border-bottom: 1px solid var(--border-color); padding-bottom: 5px; }
#help-view ul { padding-left: 20px; }
#help-view code { background-color: var(--bg-secondary-color); padding: 2px 5px; border-radius: 4px; }

#current-time { font-size: 2.1rem; font-weight: 300; margin-bottom: 20px; letter-spacing: 2px; }
.buttons { margin-bottom: 20px; display: flex; justify-content: center; align-items: center; gap: 10px; }
button { padding: 12px 25px; font-size: 1em; border: none; border-radius: 6px; cursor: pointer; margin: 5px; transition: background-color 0.3s, transform: 0.1s, opacity: 0.3s; }
button:hover { opacity: 0.9; }
button:active { transform: scale(0.98); }
#clock-in-btn { background-color: var(--success-color); color: white; }
#clock-out-btn { background-color: var(--danger-color); color: white; }
button:disabled { cursor: not-allowed; }

#clock-in-btn:disabled {
    background-color: var(--success-color);
    opacity: 0.6;
}
#clock-out-btn:disabled {
    background-color: var(--danger-color);
    opacity: 0.6;
}

.summary-container { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 20px; text-align: left; }
.summary-box { background-color: var(--bg-secondary-color); border-radius: 6px; padding: 15px; border: 1px solid var(--border-color); }
.summary-box.full-width { grid-column: 1 / -1; }
.summary-box h3 { margin: 0 0 5px 0; color: var(--dark-gray); font-size: 0.9rem; font-weight: 500; }
.summary-box div { font-size: 1.4rem; font-weight: bold; }
#gross-pay-display { color: var(--primary-color); }
#net-pay-display { color: var(--success-color); }

h2 { margin-top: 30px; font-size: 1.25rem; }

#log-table, .pay-period-log-table { width: 100%; border-collapse: collapse; text-align: left; }
#log-table th, #log-table td, .pay-period-log-table th, .pay-period-log-table td { padding: 12px; border-bottom: 1px solid var(--border-color); }
#log-table thead th, .pay-period-log-table thead th { position: sticky; top: 0; background-color: var(--bg-secondary-color); z-index: 1; }
#log-table tbody tr, .pay-period-log-table tbody tr { cursor: pointer; }
#log-table tbody tr:hover, .pay-period-log-table tbody tr:hover { background-color: rgba(128,128,128,0.1); }

/* --- Settings/Pay Periods/Manual Entry View Styles --- */
#settings-view, #pay-periods-view { text-align: left; padding: 20px; overflow-y: auto; }
.settings-toolbar { display: flex; justify-content: flex-start; gap: 5px; padding-bottom: 15px; margin-bottom: 15px; border-bottom: 1px solid var(--border-color); }
.toolbar-btn { background: none; border: none; color: var(--primary-color); cursor: pointer; padding: 5px 10px; font-size: 0.9rem; border-radius: 4px; }
.toolbar-btn:hover { text-decoration: underline; background-color: var(--bg-secondary-color); }
.toolbar-btn.danger { color: var(--danger-color); }
.settings-grid, .form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.setting-item, .form-item { display: flex; flex-direction: column; }
.setting-item label, .form-item label { margin-bottom: 5px; font-weight: 500; }
.setting-item input, .setting-item select, .form-item input, .form-item textarea { padding: 10px; border: 1px solid var(--border-color); border-radius: 6px; font-size: 1rem; background-color: var(--bg-color); color: var(--text-color); }
.form-item.full-width { grid-column: 1 / -1; }
.settings-actions, .form-actions { margin-top: 30px; text-align: right; }
#save-settings-btn, #manual-save-btn { background-color: var(--primary-color); color: white; }
#save-confirm, #manual-save-confirm { color: var(--success-color); margin-right: 15px; font-weight: 500; display: none; }

.settings-group {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px 20px;
    margin-bottom: 25px;
}
.settings-group h3 {
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    font-size: 1.1rem;
}

/* Pay Periods Accordion */
.accordion-item { border: 1px solid var(--border-color); border-radius: 6px; margin-bottom: 10px; }
.accordion-header { background-color: var(--bg-secondary-color); padding: 15px; cursor: pointer; font-weight: 500; display: flex; justify-content: space-between; align-items: center; }
.accordion-header::after { content: '+'; font-size: 1.5rem; transition: transform 0.2s; }
.accordion-item.active .accordion-header::after { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; background-color: var(--bg-color); }
.accordion-item.active .accordion-content { border-top: 1px solid var(--border-color); }

/* Modal Styles */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); display: none; justify-content: center; align-items: center; z-index: 1000; }
.modal-content { background-color: var(--bg-color); padding: 25px; border-radius: 8px; box-shadow: 0 5px 15px var(--modal-shadow); text-align: left; max-width: 500px; width: 90%; position: relative; }
.close-modal-btn { position: absolute; top: 10px; right: 15px; background: none; border: none; font-size: 2rem; cursor: pointer; color: var(--dark-gray); padding: 0; margin: 0; line-height: 1; }
.modal-content h2 { margin-top: 0; text-align: center; }
.modal-buttons { margin-top: 20px; display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }
.modal-buttons button { background-color: var(--dark-gray); color: white; }
.modal-confirm-btn { background-color: var(--danger-color); color: white; }
.modal-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.modal-form-grid .full-width { grid-column: 1 / -1; }
.modal-form-item { display: flex; flex-direction: column; }
.modal-form-item label { margin-bottom: 5px; font-weight: 500; }
.modal-form-item input, .modal-form-item textarea { width: 100%; box-sizing: border-box; padding: 10px; border: 1px solid var(--border-color); border-radius: 6px; font-size: 1rem; background-color: var(--bg-color); color: var(--text-color); }
textarea { resize: vertical; min-height: 80px; }

/* Dark Mode Toggle Switch */
.switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 28px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--primary-color); }
input:checked + .slider:before { transform: translateX(22px); }

/* Print Styles */
@media print {
    body * { visibility: hidden; }
    #print-area, #print-area * { visibility: visible; }
    #print-area { position: absolute; left: 0; top: 0; width: 100%; }
    .print-header { text-align: center; margin-bottom: 20px; }
    .print-summary { display: flex; justify-content: space-around; margin-bottom: 20px; border: 1px solid #ccc; padding: 10px; }
    .print-summary div { text-align: center; }
    .print-table { width: 100%; border-collapse: collapse; }
    .print-table th, .print-table td { border: 1px solid #ccc; padding: 8px; text-align: left; }
}

@media (max-width: 500px) { .modal-form-grid { grid-template-columns: 1fr; } }

@media (min-width: 768px) {
    body { display: flex; justify-content: center; align-items: center; padding: 20px 0; }
    .container { max-width: 800px; height: auto; max-height: 95vh; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); padding: 20px 30px 30px 30px; }
    .dark-mode .container { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4); }
    .menu-bar { padding: 0; }
}