/* --- GLOBAL STYLES & VARIABLES --- */
:root {
    --primary-color: #4a90e2;
    --primary-hover: #357ABD;
    --secondary-color: #f5f7fa;
    --text-color: #333;
    --text-muted: #777;
    --bg-color: #ffffff;
    --border-color: #e0e0e0;
    --sidebar-bg: #2c3e50;
    --sidebar-text: #ecf0f1;
    --sidebar-active: #34495e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #3498db;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
}

body.dark-mode {
    --primary-color: #5dadec;
    --primary-hover: #4a90e2;
    --secondary-color: #2c3e50;
    --text-color: #ecf0f1;
    --text-muted: #bdc3c7;
    --bg-color: #212c38;
    --border-color: #3e5165;
    --sidebar-bg: #1f2933;
    --sidebar-text: #ecf0f1;
    --sidebar-active: #2c3e50;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    overflow-x: hidden;
}

i {
    margin-right: 10px;
}

.hidden {
    display: none !important;
}

/* --- LOGIN SCREEN --- */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: var(--secondary-color);
    padding: 15px;
}

.login-box {
    background-color: var(--bg-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
    color: var(--text-color);
    font-size: 16px;
}

.login-box button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.error-message {
    color: var(--danger-color);
    margin-top: 15px;
    font-size: 14px;
    min-height: 1em;
}

/* --- APP LAYOUT --- */
.app-container {
    display: flex;
    height: 100vh;
    position: relative;
}

.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease-in-out;
    z-index: 1001;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--sidebar-active);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background-color 0.3s;
    border-left: 3px solid transparent;
}

.nav-link.active {
    background-color: var(--sidebar-active);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--sidebar-active);
}

.user-profile {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

#current-user-initials {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    margin-right: 10px;
    flex-shrink: 0;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0;
    font-size: 0.8em;
    text-align: left;
}

#logout-btn {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px;
    background: var(--danger-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--secondary-color);
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
}

.menu-toggle-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    color: var(--text-color);
    margin-right: 15px;
}

.page-content {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
}

.table-wrapper {
    overflow-x: auto;
}

/* --- DASHBOARD WIDGETS & TO-DO LIST --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.widget {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    border-left: 4px solid var(--primary-color);
}

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

.widget-header h3 {
    font-weight: 500;
    color: var(--text-muted);
    font-size: 1em;
}

.widget-value {
    font-size: 2em;
    font-weight: 600;
}

.todo-list {
    list-style-type: none;
    padding: 0;
}

.todo-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 10px;
    background: var(--bg-color);
    transition: box-shadow 0.2s;
}

.todo-item:hover {
    box-shadow: var(--shadow);
}

.todo-item-details {
    display: flex;
    flex-direction: column;
}

.todo-item-title {
    font-weight: 500;
}

.todo-item-client {
    font-size: 0.85em;
    color: var(--text-muted);
}

.todo-item.completed {
    background-color: var(--secondary-color);
}

.todo-item.completed .todo-item-title {
    text-decoration: line-through;
    color: var(--text-muted);
}

/* --- TASK CARD LAYOUT --- */
.tasks-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.task-card {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.task-card-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.task-card-header h3 {
    font-size: 1.1em;
    margin: 0;
}

.task-card-body {
    padding: 15px;
    flex-grow: 1;
}

.task-card-body p {
    margin-bottom: 10px;
    font-size: 0.9em;
    color: var(--text-muted);
}

.task-card-body p strong {
    color: var(--text-color);
}

.task-links a {
    margin-right: 15px;
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
}

.changes-note {
    background-color: var(--secondary-color);
    border-left: 3px solid var(--primary-color);
    padding: 10px;
    margin-top: 10px;
    border-radius: 4px;
    font-size: 0.85em;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.task-card-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--secondary-color);
    gap: 15px;
}

.social-icons {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.social-icons a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1.2em;
    margin: 0;
}

.task-actions {
    display: flex;
    flex-shrink: 0;
}

.task-actions button {
    margin-left: 5px;
}

/* --- CALENDAR --- */
.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header .btn {
    background-color: var(--secondary-color);
    color: var(--text-color);
}

.calendar-day,
.calendar-day-name {
    background: var(--bg-color);
    padding: 10px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    min-height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background-color 0.2s;
}

.calendar-day-name {
    font-weight: 600;
    min-height: auto;
    justify-content: center;
}

.calendar-day:not(.other-month) {
    cursor: pointer;
}

.calendar-day:not(.other-month):hover {
    background-color: var(--secondary-color);
}

.calendar-day.other-month {
    color: var(--text-muted);
    background: var(--secondary-color);
}

.calendar-day.today .day-number {
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    line-height: 28px;
}

.day-number {
    font-weight: 600;
    margin-bottom: 5px;
}

.task-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--warning-color);
    margin-top: 5px;
}

.attendee-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
    margin-top: 5px;
}

.attendee-initials {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    font-size: 0.75em;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calendar-day.holiday {
    background-color: rgba(52, 152, 219, 0.2);
}

.calendar-day.sunday-off {
    background-color: rgba(128, 128, 128, 0.1);
}

.attendance-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.stat-card {
    background: var(--bg-color);
    padding: 15px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.stat-card .stat-label {
    font-size: 1em;
    font-weight: 500;
    margin-bottom: 10px;
}

.stat-card .stat-values {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

.stat-values span {
    font-size: 1.2em;
    font-weight: 600;
}

.stat-values span.present {
    color: var(--success-color);
}

.stat-values span.absent {
    color: var(--danger-color);
}

/* --- STYLED FORM ELEMENTS --- */
.form-group select,
.form-group input[type="date"] {
    appearance: none;
    -webkit-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23777777%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 0.65em auto;
    padding-right: 2.5rem;
}

body.dark-mode .form-group select,
body.dark-mode .form-group input[type="date"] {
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23bdc3c7%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
}

.form-group input[type="date"]::-webkit-calendar-picker-indicator {
    opacity: 0.5;
    cursor: pointer;
}

body.dark-mode .form-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
}

.attendance-status-select {
    transition: background-color 0.3s;
}

.attendance-status-select.present {
    background-color: rgba(46, 204, 113, 0.2);
    border-color: var(--success-color);
}

.attendance-status-select.absent {
    background-color: rgba(231, 76, 60, 0.2);
    border-color: var(--danger-color);
}

/* --- DARK MODE TOGGLE --- */
.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;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked+.slider {
    background-color: var(--sidebar-bg);
}

input:checked+.slider:before {
    transform: translateX(22px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

.slider i {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8em;
    margin: 0;
    transition: opacity 0.4s;
}

.slider .fa-sun {
    left: 7px;
    color: var(--warning-color);
    opacity: 1;
}

.slider .fa-moon {
    right: 7px;
    color: var(--primary-color);
    opacity: 0;
}

input:checked+.slider .fa-sun {
    opacity: 0;
}

input:checked+.slider .fa-moon {
    opacity: 1;
}

/* --- RESPONSIVENESS --- */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
}

.sidebar-overlay.show {
    display: block;
}

@media (max-width: 992px) {
    .sidebar {
        position: fixed;
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
        box-shadow: 10px 0 20px rgba(0, 0, 0, 0.1);
    }

    .menu-toggle-btn {
        display: block;
    }
}

@media (max-width: 480px) {
    .page-content {
        padding: 10px;
    }

    .main-header {
        padding: 10px 15px;
    }

    .card {
        padding: 15px;
    }

    .calendar-day,
    .calendar-day-name {
        min-height: 60px;
        padding: 5px;
        font-size: 0.8em;
    }

    .attendee-initials {
        width: 18px;
        height: 18px;
        font-size: 0.6em;
    }
}

/* --- GENERIC UTILITIES --- */
.card {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 1.5em;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

th {
    background-color: var(--secondary-color);
    font-weight: 600;
}

tbody tr:hover {
    background-color: var(--secondary-color);
}

.actions button {
    margin: 2px;
}

.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-container.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    transform: translateY(-50px);
    transition: transform 0.3s;
}

.modal-container.show .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-footer {
    margin-top: 20px;
    text-align: right;
}

.modal-footer .btn {
    margin-left: 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
    color: var(--text-color);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8em;
}

.status {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.8em;
    font-weight: 600;
    color: white;
    display: inline-block;
}

.status-pending,
.status-absent {
    background-color: var(--warning-color);
}

.status-started {
    background-color: var(--primary-color);
}

.status-completed,
.status-present {
    background-color: var(--success-color);
}

/* --- Google Calendar Responsive Embed --- */
.card-full-height {
    padding: 0;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-full-height iframe {
    flex-grow: 1;
    border: none;
}

/* --- Post Tracker Styles (Redesigned) --- */
.tracker-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.tracker-controls .form-group {
    margin-bottom: 0;
}

.tracker-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.tracker-day-card {
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.day-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
}

.day-card-header h3 {
    margin: 0;
    font-size: 1.2em;
}
.day-card-header .day-name {
    font-size: 0.9em;
    color: var(--text-muted);
}

.posts-container {
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    flex-grow: 1;
}

.tracker-post-card .form-group {
    margin-bottom: 10px;
}

.post-card-actions {
    text-align: right;
    margin-top: 10px;
    display: flex;
    gap: 5px;
    justify-content: flex-end;
}

.day-card-footer {
    padding: 10px 15px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.add-post-btn-circle {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.2s;
}

.add-post-btn-circle:hover {
    background: var(--primary-hover);
}

.platform-statuses {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.tracker-summary {
    margin-top: 20px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.tracker-post-card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 15px;
    background: var(--secondary-color);
}

.post-summary-view {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-details {
    display: flex;
    flex-direction: column;
}

.summary-filename {
    font-weight: 600;
    font-size: 1.1em;
}

.summary-platforms {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    font-size: 1.4em;
    align-items: center;
}

.summary-platforms i {
    margin-right: 0;
}

.summary-platforms .fa-facebook { color: #1877F2; }
.summary-platforms .fa-instagram { color: #E4405F; }
.summary-platforms .fa-linkedin { color: #0A66C2; }
.summary-platforms .fa-youtube { color: #FF0000; }

.summary-actions .btn-link {
    font-size: 1em;
    color: var(--text-muted);
}

/* --- NEW: Client & Admin Card Layout Styles --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.client-card, .user-card {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.client-card-header, .user-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.client-card-header h3, .user-card-header h3 {
    margin: 0;
    font-size: 1.2em;
}

.client-card-body, .user-card-body {
    padding: 15px;
    flex-grow: 1;
}

.client-card-body p, .user-card-body p {
    margin-bottom: 10px;
    font-size: 0.9em;
    color: var(--text-muted);
}

.client-card-body p strong, .user-card-body p strong {
    color: var(--text-color);
}

.client-card-footer, .user-card-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--secondary-color);
}

.client-socials {
    display: flex;
    gap: 15px;
    font-size: 1.2em;
}

.client-socials a {
    color: var(--text-muted);
}

.card-actions button {
    margin-left: 5px;
}