/* Global Resets and Base Styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0; /* Changed from 20px for full-page themes */
    transition: background-color 0.3s ease, color 0.3s ease;
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    line-height: 1.6;
}

/* --- Theme Variables --- */
:root {
    /* Dark Theme (Default) */ 
    --bg-color-dark: #1a1a2e;
    --text-color-dark: #e0e0e0;
    --container-bg-dark: #162447;
    --container-bg-dark-secondary: #1e2a4a;
    --header-color-dark: #90a4ae; /* Lighter for contrast */
    --link-bg-dark: #1f4068;
    --link-hover-bg-dark: #2c5d8f;
    --link-text-dark: #e0f7fa;
    --button-bg-dark: #e94560;
    --button-text-dark: #ffffff;
    --input-bg-dark: #283747;
    --input-border-dark: #3d5a80;
    --input-focus-dark: #4a6b8a;

    /* Vibrant Theme */
    --bg-color-vibrant: #f0f9ff; /* Light sky blue */
    --text-color-vibrant: #333333;
    --container-bg-vibrant: #ffffff;
    --container-bg-vibrant-secondary: #f9f9f9;
    --header-color-vibrant: #ff6b6b; /* Coral */
    --link-bg-vibrant: #4ecdc4; /* Turquoise */
    --link-hover-bg-vibrant: #3db8af;
    --link-text-vibrant: #ffffff;
    --button-bg-vibrant: #f9a826; /* Yellow */
    --button-text-vibrant: #333333;
    --input-bg-vibrant: #ffffff;
    --input-border-vibrant: #dde5ed;
    --input-focus-vibrant: #c0d9e7;

    /* General UI */
    --border-radius-main: 12px;
    --border-radius-small: 8px;
    --shadow-main: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-dark-theme: 0 8px 16px rgba(0, 0, 0, 0.3); /* Darker shadow for dark theme */

    /* RGB version for box-shadow alpha, derived from --link-hover-bg-dark */
    --link-hover-bg-dark-rgb: 31, 64, 104; 
}

/* --- Theme Application --- */
body.dark-theme {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    --border-color: #444; /* Define border color for dark theme */
}

body.vibrant-theme {
    background-color: var(--bg-color-vibrant);
    color: var(--text-color-vibrant);
    --border-color: #ddd; /* Define border color for vibrant theme */
}

/* --- Landing Page Specific Styles --- */
/* .top-bar is now a global style for theme toggle */
.top-bar {
    display: flex;
    justify-content: flex-end; /* Default: push content (theme button) to the right */
    align-items: center;
    padding: 10px 20px;
    background-color: transparent; /* Blend with page background */
    position: fixed; /* Keep top bar visible */
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000; /* Ensure it's above other content */
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.top-bar.top-bar-with-clock {
    justify-content: space-between; /* Override for index.html to accommodate clock */
}

/* Style for top-bar on subpages like verlof-vieuwer.php */
.top-bar.top-bar-subpage {
    justify-content: space-between; /* Home button on left, theme toggle on right */
}

/* General style for buttons within the top-bar */
.button.top-bar-button {
    display: inline-block; /* Ensure <a> tags behave like buttons */
    padding: 10px 15px; /* Consistent padding */
    border: none;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: bold;
    text-decoration: none; /* For <a> tags styled as buttons */
    color: var(--button-text-dark); /* Default to dark theme button text */
    background-color: var(--button-bg-dark); /* Default to dark theme button bg */
    transition: background-color 0.3s ease, color 0.3s ease, opacity 0.2s ease;
    font-size: 0.9em;
}

.dark-theme .button.top-bar-button {
    background-color: var(--button-bg-dark);
    color: var(--button-text-dark) !important; /* Added important to override link defaults if necessary */
}

.vibrant-theme .button.top-bar-button {
    background-color: var(--button-bg-vibrant);
    color: var(--button-text-vibrant) !important; /* Added important to override link defaults if necessary */
}

.button.top-bar-button:hover {
    opacity: 0.85;
}

#datetime-container {
    font-size: 0.9em;
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: var(--border-radius-small);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.dark-theme #datetime-container {
    background-color: var(--container-bg-dark);
}

#theme-toggle { /* Specific ID styles minimized, common styles moved to .top-bar-button */
    /* padding: 10px 15px; */ /* Moved to .button.top-bar-button */
    border: none;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease;
    /* Theme-specific background/color inherited from .button.top-bar-button */
}

/* Theme-specific button styles for #theme-toggle are now redundant due to .button.top-bar-button theme rules */
/* .dark-theme #theme-toggle { ... } */
/* .vibrant-theme #theme-toggle { ... } */

/* Centering content for landing page */
body:has(.content-wrapper) { /* Apply flex only if .content-wrapper exists (landing page) */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px; /* Add padding for landing page body */
}


.content-wrapper {
    display: none; /* Hidden by default, shown after passcode */
    padding: 40px;
    border-radius: var(--border-radius-main);
    max-width: 600px;
    width: 90%;
}

.dark-theme .content-wrapper {
    background-color: var(--container-bg-dark);
    box-shadow: var(--shadow-dark-theme);
}

.vibrant-theme .content-wrapper {
    background-color: var(--container-bg-vibrant);
    box-shadow: var(--shadow-main);
}

.content-wrapper h1 {
    margin-bottom: 20px;
}
.dark-theme .content-wrapper h1 { color: var(--header-color-dark); }
.vibrant-theme .content-wrapper h1 { color: var(--header-color-vibrant); }


.content-wrapper p {
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 20px;
}

.content-wrapper h2 {
    margin-top: 30px;
    margin-bottom: 15px;
}
.dark-theme .content-wrapper h2 { color: var(--header-color-dark); }
.vibrant-theme .content-wrapper h2 { color: var(--header-color-vibrant); }


.category-list {
    list-style: none;
    padding: 0;
}

.category-list li {
    margin-bottom: 15px;
}

.category-list a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-small);
    font-size: 1.2em;
    transition: background-color 0.3s ease;
}

.dark-theme .category-list a {
    background-color: var(--link-bg-dark);
    color: var(--link-text-dark);
}
.dark-theme .category-list a:hover {
    background-color: var(--link-hover-bg-dark);
}

.vibrant-theme .category-list a {
    background-color: var(--link-bg-vibrant);
    color: var(--link-text-vibrant);
}
.vibrant-theme .category-list a:hover {
    background-color: var(--link-hover-bg-vibrant);
}

.access-denied {
    color: #e74c3c; /* Red for access denied */
    font-weight: bold;
    font-size: 1.2em; /* Ensure it's visible */
    padding: 20px;
    text-align: center;
    width: 100%;
}
.dark-theme .access-denied { color: #ff6b6b; } /* Lighter red for dark theme */
.vibrant-theme .access-denied { color: #e74c3c; }


/* --- Styles for Verlof Vieuwer (verlof-vieuwer.php) --- */
.controls-panel {
    background-color: var(--container-bg-dark-secondary);
    padding: 20px;
    border-radius: var(--border-radius-main);
    margin-bottom: 25px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.vibrant-theme .controls-panel {
    background-color: var(--container-bg-vibrant-secondary);
}

.search-section {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
}

.control-group {
    flex: 1;
    min-width: 250px;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.date-search-input-group {
    display: flex;
    gap: 10px;
}

.date-search-input-group input {
    flex: 1;
}

.date-search-input-group button {
    flex-shrink: 0;
}

.view-options {
    margin-top: 10px;
}

.view-options label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
}

.view-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.view-button {
    padding: 10px 15px;
    background-color: var(--link-bg-dark);
    color: var(--link-text-dark);
    border: none;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    flex: 1;
    min-width: 100px;
    max-width: 200px;
}

.vibrant-theme .view-button {
    background-color: var(--link-bg-vibrant);
    color: var(--link-text-vibrant);
}

.view-button:hover {
    background-color: var(--link-hover-bg-dark);
    transform: translateY(-2px);
}

.vibrant-theme .view-button:hover {
    background-color: var(--link-hover-bg-vibrant);
}

.view-button.active {
    background-color: var(--button-bg-dark);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.vibrant-theme .view-button.active {
    background-color: var(--button-bg-vibrant);
}

.schedule-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

#schedule-title {
    margin: 0;
}

#schedule-action-buttons {
    display: flex;
    gap: 10px;
}

.action-button {
    background-color: transparent;
    color: var(--text-color-dark);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.vibrant-theme .action-button {
    color: var(--text-color-vibrant);
}

.action-button:hover {
    background-color: var(--link-bg-dark);
    color: var(--link-text-dark);
    transform: rotate(15deg);
}

.vibrant-theme .action-button:hover {
    background-color: var(--link-bg-vibrant);
    color: var(--link-text-vibrant);
}

.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-main);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

#schedule-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--border-radius-main);
    overflow: hidden;
}

#schedule-table th {
    background-color: var(--container-bg-dark);
    color: var(--header-color-dark);
    padding: 15px;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.vibrant-theme #schedule-table th {
    background-color: var(--container-bg-vibrant);
    color: var(--header-color-vibrant);
}

#schedule-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
}

#schedule-table tbody tr:hover td {
    background-color: rgba(255, 255, 255, 0.05);
}

.vibrant-theme #schedule-table tbody tr:hover td {
    background-color: rgba(0, 0, 0, 0.03);
}

.messages {
    margin-top: 20px;
}

.status-message {
    padding: 15px;
    border-radius: var(--border-radius-small);
    text-align: center;
    font-weight: 500;
    display: none;
}

.status-message.loading {
    background-color: rgba(25, 118, 210, 0.1);
    color: #1976d2;
}

.vibrant-theme .status-message.loading {
    background-color: rgba(25, 118, 210, 0.1);
    color: #1976d2;
}

.status-message.no-data {
    background-color: rgba(245, 124, 0, 0.1);
    color: #f57c00;
}

.vibrant-theme .status-message.no-data {
    background-color: rgba(245, 124, 0, 0.1);
    color: #f57c00;
}

/* Keep existing styles for working, on-leave, etc. */
.on-leave { /* Color is important, keep it distinct */
    color: #ff5555; /* Keeps red for leave status */
    font-weight: bold;
}

.dark-theme .on-leave { color: #ff5555; } /* Keep consistent for leave */
.vibrant-theme .on-leave { color: #e74c3c; } /* Slightly different shade for vibrant */

.working { /* Green, ensure visibility */
    color: #50fa7b; /* Bright green for dark theme */
    font-weight: bold;
}

.dark-theme .working { color: #50fa7b; } /* Brighter green for dark theme */
.vibrant-theme .working { color: #28a745; } /* Standard green for vibrant */

/* Responsive styles for the new controls-panel */
@media (max-width: 768px) {
    .search-section {
        flex-direction: column;
        gap: 15px;
    }
    
    .control-group {
        width: 100%;
    }
    
    .view-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .view-button {
        flex: 0 0 calc(50% - 10px);
    }
    
    .schedule-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    #schedule-action-buttons {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .view-button {
        flex: 0 0 100%;
        max-width: none;
    }
    
    .date-search-input-group {
        flex-direction: column;
    }
}

/* --- Responsive Styles --- */

/* Common breakpoint for mobile phones */
@media (max-width: 768px) {
    body {
        padding: 10px; /* Reduce body padding on smaller screens */
        font-size: 95%; /* Slightly reduce base font size */
    }

    .top-bar {
        padding: 8px 10px; /* Reduce padding */
        flex-direction: row; /* Ensure clock and button stay in a row */
        justify-content: space-between; /* Always space-between on mobile for clock/button */
    }

    #datetime-container {
        font-size: 0.8em; /* Make clock text smaller */
        padding: 4px 8px;
    }

    #theme-toggle {
        padding: 8px 12px;
        font-size: 0.9em;
    }

    .content-wrapper, .container, .calculator-wrapper {
        padding: 20px; /* Reduce padding for main content containers */
        padding-top: 60px; /* Adjust for smaller fixed top-bar */
        width: 95%; /* Allow a bit more width */
    }

    h1 {
        font-size: 1.8em; /* Reduce heading sizes */
    }

    h2 {
        font-size: 1.5em;
    }

    h3 {
        font-size: 1.2em;
    }

    /* Landing page main buttons */
    .main-buttons-container {
        flex-direction: column; /* Stack buttons vertically */
        gap: 10px;
    }

    .main-action-button {
        width: 100%; /* Make buttons full width */
        padding: 12px 15px;
        font-size: 1em;
    }

    /* Landing page category links */
    .category-list a {
        padding: 12px 15px;
        font-size: 1.1em;
    }

    /* To-Do List and Timer on Landing Page */
    #todo-list-container, #timers-container {
        padding: 15px;
    }

    .todo-input-area, .timer-input-area {
        flex-direction: column;
        gap: 8px;
    }

    #new-todo-input, #new-timer-name-input, #new-timer-duration-input {
        width: 100%;
        box-sizing: border-box;
    }

    #add-todo-button, #add-timer-button {
        width: 100%;
        padding: 10px;
    }
    
    .timer-controls {
        display: flex;
        flex-wrap: wrap; /* Allow buttons to wrap */
        gap: 5px;
        justify-content: center; /* Center buttons */
    }

    .timer-controls button {
        flex-grow: 1; /* Allow buttons to grow and share space */
        min-width: 80px; /* Minimum width for tappability */
        font-size: 0.9em;
    }

    /* Responsive Forms for A40.html and A50.html */
    .form-section {
        padding: 10px;
    }

    .input-group, .output-group {
        flex-direction: column; /* Stack label and input/output vertically */
        align-items: flex-start; /* Align items to the start */
        gap: 5px; /* Add a small gap between label and input/output */
    }

    .input-group label, .output-group .output-label {
        min-width: 0; /* Reset min-width */
        margin-right: 0; /* Reset margin */
        margin-bottom: 3px; /* Add a small bottom margin to labels */
        font-size: 0.95em;
    }

    .input-group input[type="number"],
    .input-group input[type="datetime-local"],
    .output-group .output-value {
        width: 100%; /* Make inputs/outputs take full width of their container */
        box-sizing: border-box;
        font-size: 0.95em;
    }

    /* Adjust A40 tab buttons for smaller screens */
    .tabs-A40 {
        margin-bottom: 10px;
        /* Allow tabs to wrap if they don't fit */
        display: flex;
        flex-wrap: wrap;
        justify-content: center; /* Center tabs if they wrap */
    }
    .tab-button-A40 {
        padding: 10px 12px; /* Reduce padding */
        font-size: 0.9em; /* Reduce font size */
        flex-grow: 1; /* Allow tabs to share space */
        text-align: center;
        border-bottom: 1px solid var(--border-color, #ccc); /* Add a bottom border for separation when wrapped */
    }
    .tab-button-A40.active {
        border-bottom: 2px solid var(--button-bg-vibrant, #ff8c00); /* Keep active state clear */
    }

    .button-container-A40, .button-container-A50 { /* Assuming A50 has similar structure */
        text-align: center; /* Center the back button */
        margin-top: 15px;
    }
    .button-A40, .button-A50 {
        width: auto; /* Let button size to content */
        padding: 10px 20px;
        display: inline-block;
    }

}

/* Further adjustments for very small screens, if needed */
@media (max-width: 480px) {
    body {
        font-size: 90%; /* Further reduce font size */
    }

    .top-bar {
        padding-top: 5px;
        padding-bottom: 5px;
    }
    
    #datetime-container {
        font-size: 0.7em; 
        padding: 3px 6px;
    }

    #theme-toggle {
        padding: 6px 10px;
        font-size: 0.8em;
    }

    .content-wrapper, .container, .calculator-wrapper {
        padding: 15px;
        padding-top: 50px; /* Adjust for even smaller top bar */
    }

    h1 { font-size: 1.5em; }
    h2 { font-size: 1.3em; }
    h3 { font-size: 1.1em; }

    /* Make input fields in Verlof Vieuwer controls full width */
    .controls #employee-select {
        width: 100%;
        margin-bottom: 10px;
    }
    .view-options button {
        flex-grow: 1; /* Allow view option buttons to take up space */
        padding: 8px 5px; /* Adjust padding */ 
        font-size: 0.9em;
    }
    .view-options {
        flex-wrap: wrap; /* Allow buttons to wrap */
    }

    /* Responsive table for Verlof Vieuwer */
    #schedule-container {
        overflow-x: auto; /* Allow horizontal scrolling for the table container */
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    }

    #schedule-table {
        min-width: 600px; /* Set a min-width for the table to ensure it doesn't collapse too much */
        /* Font size for table content can be adjusted here if needed, e.g. font-size: 0.9em; */
    }
}

/* Refresh button animation */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.rotating {
    animation: rotate 1s linear infinite;
}

/* Print styles */
@media print {
    body {
        background-color: white !important;
        color: black !important;
    }
    
    .top-bar, 
    .controls-panel, 
    #schedule-action-buttons,
    .status-message {
        display: none !important;
    }
    
    .container {
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .table-container {
        overflow: visible !important;
        box-shadow: none !important;
    }
    
    #schedule-table {
        width: 100% !important;
        border-collapse: collapse !important;
    }
    
    #schedule-table th {
        background-color: #f0f0f0 !important;
        color: black !important;
        border: 1px solid #ddd !important;
    }
    
    #schedule-table td {
        border: 1px solid #ddd !important;
        color: black !important;
    }
    
    .on-leave {
        color: red !important;
    }
    
    .working {
        color: green !important;
    }
    
    #schedule-title {
        color: black !important;
        text-align: center !important;
        margin-bottom: 20px !important;
        font-size: 18pt !important;
    }
    
    /* Reset any theme-specific styles that might affect printing */
    * {
        background-color: transparent !important;
        box-shadow: none !important;
    }
}

/* Container for Verlof Vieuwer and other pages */
.container { 
    max-width: 1200px;
    margin: 20px auto; 
    padding: 20px;
    padding-top: 70px; /* Added padding to clear fixed top-bar */
    border-radius: var(--border-radius-main);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--container-bg-dark);
    box-shadow: var(--shadow-dark-theme);
}

.vibrant-theme .container {
    background-color: var(--container-bg-vibrant);
    box-shadow: var(--shadow-main);
}

/* Theme Transition Effects */
.theme-transition {
    transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.theme-transition * {
    transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.theme-toggle-clicked {
    transform: scale(1.2) !important;
    opacity: 0.8 !important;
}

/* Update the theme toggle button styles */
#theme-toggle {
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

#theme-toggle:hover {
    transform: scale(1.05);
}

/* Add feedback for action buttons */
.action-button {
    position: relative;
    overflow: hidden;
}

.action-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.action-button:active::after {
    width: 100px;
    height: 100px;
}