/*
Theme Name: Staff Coverage Calendar
Description: Custom styles for the staff coverage calendar application.
Author: AI Assistant
Version: 1.1
*/

/* ==========================================================================
   GLOBAL STYLES & VARIABLES
   ========================================================================== */
:root {
    --primary-color: #0056b3;
    --secondary-color: #f4f4f4;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #fff;
    --dark-color: #333;
    --font-family: 'Roboto', sans-serif;
    --menu-icon-size: 30px;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    margin: 0;
    background-color: var(--secondary-color);
    color: var(--dark-color);
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* --- Header & Navigation --- */
header {
    background: var(--primary-color);
    color: var(--light-color);
    padding: 0.8rem 0;
    border-bottom: var(--primary-color) 3px solid;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header a {
    color: var(--light-color);
    text-decoration: none;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    position: relative;
}

header .logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

header .logo-img {
    height: 40px;
    width: auto;
    display: block;
}

/* --- Scroll Arrows --- */
.scroll-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 86, 179, 0.7);
    color: var(--light-color);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, background-color 0.3s ease;
}

.scroll-arrow.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-arrow:hover {
    background-color: rgba(0, 86, 179, 0.9);
}

.scroll-arrow.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#scroll-left {
    left: 80px;
}

#scroll-right {
    right: 150px;
}

/* --- Navigation Menu --- */
header nav {
    position: relative;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    padding: 0 40px;
}

header nav::-webkit-scrollbar {
    display: none;
}

header nav ul {
    margin: 0;
    padding: 0 10px;
    list-style: none;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

header nav ul li {
    padding: 0 5px;
}

header nav ul li a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    padding: 10px 5px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    width: 90px;
    min-height: 70px;
}

header nav ul li a i {
    font-size: var(--menu-icon-size);
    margin-bottom: 5px;
}

header nav ul li a span {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    line-height: 1.2;
}

header nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

header nav ul li a.active {
    background-color: rgba(255, 255, 255, 0.2);
    border-bottom: 3px solid var(--light-color);
}

header .language-switcher {
    flex-shrink: 0;
}

header .language-switcher select {
    padding: 5px;
    border-radius: 5px;
    border: none;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 20px;
    margin-top: 20px;
    background: var(--dark-color);
    color: var(--light-color);
    font-size: 0.8em;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 8px 15px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: background-color 0.3s;
}

.btn-primary { background-color: var(--primary-color); color: var(--light-color); }
.btn-secondary { background-color: #6c757d; color: var(--light-color); }
.btn-success { background-color: var(--success-color); color: var(--light-color); }
.btn-danger { background-color: var(--danger-color); color: var(--light-color); }
.btn-info { background-color: var(--info-color); color: var(--light-color); }

.btn:hover {
    opacity: 0.9;
}

/* --- Forms & Tables --- */
.form-container {
    background: var(--light-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.data-table th, .data-table td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left;
}

.data-table th {
    background-color: var(--primary-color);
    color: var(--light-color);
}

.data-table tr:nth-child(even) {
    background-color: #f2f2f2;
}

/* --- Status Labels --- */
.status {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    color: var(--light-color);
}
.status-pending { background-color: var(--warning-color); color: var(--dark-color); }
.status-approved { background-color: var(--success-color); }
.status-rejected { background-color: var(--danger-color); }
.status-declined { background-color: var(--danger-color); }
.status-pending_certificate { background-color: var(--info-color); }
.status-unjustified { background-color: var(--dark-color); }

/* --- Messages --- */
.success, .error {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}
.success { color: #155724; background-color: #d4edda; border-color: #c3e6cb; }
.error { color: #721c24; background-color: #f8d7da; border-color: #f5c6cb; }

/* ==========================================================================
   CALENDAR SUMMARY DASHBOARD
   ========================================================================== */
.calendar-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
    justify-content: space-between;
}

.summary-card {
    background: var(--light-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    padding: 20px;
    flex: 1;
    min-width: 200px;
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.summary-card:hover {
    transform: translateY(-5px);
}

.summary-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    background-color: var(--primary-color);
    color: var(--light-color);
}

.summary-icon.pending {
    background-color: var(--warning-color);
}

.summary-icon.approved {
    background-color: var(--success-color);
}

.summary-content h3 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
}

.summary-content p {
    margin: 5px 0 0 0;
    color: var(--dark-color);
    opacity: 0.8;
    font-size: 0.9rem;
}

/* ==========================================================================
   ENHANCED CALENDAR STYLES
   ========================================================================== */
.calendar-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    gap: 15px;
}

.calendar-controls button {
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
}

#current-month-year {
    font-weight: bold;
    font-size: 1.2em;
}

#calendar-loading {
    text-align: center;
    padding: 20px;
    color: var(--primary-color);
}

.calendar-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border-radius: 8px;
    overflow: hidden;
}

.calendar-table th, .calendar-table td {
    border: 1px solid #ddd;
    padding: 15px 10px;
    text-align: center;
    vertical-align: top;
    width: 14.28%;
    height: 100px;
    position: relative;
}

.calendar-table th {
    background-color: var(--primary-color);
    color: var(--light-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    padding: 8px 5px;
    height: 40px;
}

.calendar-day {
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    position: relative;
}

.calendar-day.clickable {
    cursor: pointer;
    background-color: #f8f9fa;
}

.calendar-day.clickable:hover {
    background-color: #e9ecef;
    transform: scale(1.02);
}

/* Calendar Day Colors - Using lighter shades */
.calendar-day.understaffed {
    background-color: #ffcdd2; /* Lighter red */
    color: #333;
    border: 2px solid #ef9a9a;
}

.calendar-day.ok {
    background-color: #e8f5e9; /* Lighter green */
    color: #333;
}

.calendar-day.pending-absence {
    background-color: #fff8e1; /* Lighter yellow */
    color: #333;
    border: 2px solid #ffecb3;
}

.calendar-day.weekend {
    background-color: #f5f5f5; /* Lighter gray */
    color: #6c757d;
    font-style: italic;
}

/* Highlight for severely understaffed days */
.calendar-day.understaffed-highlight {
    background-color: #ef9a9a; /* Lighter red for more emphasis */
    color: #333;
    border: 3px solid #e57373;
    font-weight: bold;
    position: relative;
}

.calendar-day.understaffed-highlight::after {
    content: "!";
    position: absolute;
    top: 5px;
    right: 5px;
    color: #333;
    font-size: 1.2rem;
    font-weight: bold;
}

/* Enhanced absence count badge with semi-transparent background */
.absence-count-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: rgba(0, 86, 179, 0.7);
    color: var(--light-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 10;
}

/* Lighter badge for understaffed days */
.understaffed .absence-count-badge {
    background-color: rgba(239, 154, 154, 0.7); /* Lighter red for understaffed */
}

.understaffed-highlight .absence-count-badge {
    background-color: rgba(229, 115, 115, 0.7); /* Lighter red for understaffed highlight */
}

/* Day number styling - Make it as tall as the cell with 50% transparency */
.calendar-day .day-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.2); /* 50% semi-transparent */
    position: absolute;
    top: 0;
    left: 5px;
    bottom: 0;
    right: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-left: 5px;
    text-shadow: none;
    line-height: 1;
}

/* ==========================================================================
   ENHANCED MODAL STYLES
   ========================================================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    overflow: auto;
}

.modal-content {
    background-color: var(--light-color);
    margin: 5% auto;
    padding: 0;
    border: none;
    width: 80%;
    max-width: 700px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    animation: modalopen 0.4s ease-out;
}

@keyframes modalopen {
    from {opacity: 0; top: -50px;}
    to {opacity: 1; top: 0;}
}

.modal-header {
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.close-button {
    color: var(--light-color);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
}

.close-button:hover,
.close-button:focus {
    color: #000;
    text-decoration: none;
}

#modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.absence-details-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.absence-summary {
    display: flex;
    justify-content: space-around;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 15px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.summary-label {
    font-size: 0.9rem;
    color: var(--dark-color);
    opacity: 0.7;
}

.summary-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.absence-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.absence-item {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
    border-left: 4px solid var(--primary-color);
}

.absence-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.staff-name {
    font-weight: 600;
    font-size: 1.1rem;
}

.staff-role {
    background-color: #e9ecef;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--dark-color);
}

.absence-status {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.absence-reason {
    margin-top: 10px;
    font-style: italic;
    color: var(--dark-color);
    opacity: 0.8;
}

/* --- Status Text in Modal --- */
.status-pending {
    color: #856404;
    font-weight: bold;
}

.status-approved {
    color: #155724;
    font-weight: bold;
}

/* --- Legend --- */
#legend {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ddd;
    background-color: #f9f9f9;
}

#legend h4 {
    margin-top: 0;
}

#legend ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

#legend li {
    display: inline-block;
    margin-right: 15px;
}

.legend-color {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 1px solid #ccc;
    vertical-align: middle;
    margin-right: 5px;
}

/* Legend Colors - Matching calendar colors */
.legend-color.ok {
    background-color: #e8f5e9; /* Lighter green */
}

.legend-color.understaffed {
    background-color: #ffcdd2; /* Lighter red */
}

.legend-color.pending-absence {
    background-color: #fff8e1; /* Lighter yellow */
}

.legend-color.weekend {
    background-color: #f5f5f5; /* Lighter gray */
    border: 1px solid #dee2e6;
}

/* ==========================================================================
   PAGE-SPECIFIC STYLES
   ========================================================================== */

/* --- Dashboard --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.dashboard-card {
    background: var(--light-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
}

.dashboard-card h3 {
    margin-top: 0;
}

/* --- Login Page --- */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80vh;
}

.login-form {
    background: var(--light-color);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    height: auto;
}

.login-form h2 {
    text-align: center;
    margin-top: 0;
    color: var(--primary-color);
}

/* ==========================================================================
   RESPONSIVE DESIGN & MEDIA QUERIES
   ========================================================================== */

@media (max-width: 768px) {
    /* --- Header & Navigation --- */
    header .container {
        flex-wrap: wrap;
        justify-content: space-between;
        width: 95%;
    }

    header .language-switcher {
        margin-left: auto;
        order: 2;
    }

    header nav {
        width: 100%;
        order: 3;
        margin-top: 10px;
        padding: 0 45px;
        position: relative;
    }

    #scroll-left, #scroll-right {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
    }

    #scroll-left {
        left: 10px;
    }

    #scroll-right {
        right: 10px;
    }

    #scroll-left.visible, #scroll-right.visible {
        opacity: 1;
        visibility: visible;
    }

    header .logo-img {
        height: 35px;
    }

    /* --- Calendar Summary --- */
    .calendar-summary {
        flex-direction: column;
    }
    
    .summary-card {
        width: 100%;
        margin-bottom: 15px;
    }
    
    /* --- Calendar Table --- */
    .calendar-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 0.8em;
        margin: 4px 0;
    }

    .calendar-table th, .calendar-table td {
        padding: 5px 2px;
        height: 40px;
        word-wrap: break-word;
    }
    
    /* Keep weekday headers the same width as desktop */
    .calendar-table th {
        width: 14.28%;
        padding: 8px 2px;
    }

    /* --- Modal --- */
    .modal-content {
        width: 90%;
        margin: 10% auto;
        padding: 15px;
    }
    
    .absence-summary {
        flex-direction: column;
        gap: 10px;
    }
    
    /* Adjust day number for mobile */
    .calendar-day .day-number {
        font-size: 2.5rem;
    }
}

/* --- Media query for very small screens to keep calendar controls on one line --- */
@media (max-width: 480px) {
    .calendar-controls {
        gap: 10px;
    }

    .calendar-controls button {
        padding: 6px 8px;
        font-size: 0.9em;
    }

    #current-month-year {
        font-size: 1em;
    }
    
    .calendar-day .day-number {
        font-size: 2rem; /* Slightly smaller on very small screens */
    }
    
    .absence-count-badge {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}