/* --- Pandarek EFL - Global Stylesheet --- */
:root {
    --primary-color: #007bff;
    --primary-hover: #0069d9;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ff9800;
    --info-color: #17a2b8;
    --white-bg: #ffffff;
    --text-color: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --font-family: 'Inter', sans-serif;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
    --card-border-radius: 12px;
    --container-width: 800px; /* Max width for general content containers */
}

/* --- General Body & Layout --- */
*, *::before, *::after { box-sizing: border-box; }
body {
    font-family: var(--font-family);
    background-color: #f8f9fa;
    color: var(--text-color);
    margin: 0;
    padding-top: 70px; /* Space for fixed header */
    padding-bottom: 80px; /* Space for the fixed mobile footer */
}
/* Main container for page content */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Header & Footer --- */
.main-header {
    width: 100%;
    background: var(--white-bg);
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary-color); text-decoration: none; }
.main-nav { display: flex; align-items: center; gap: 1.5rem; }
.main-nav a { text-decoration: none; color: var(--text-muted); font-weight: 500; }
.mobile-menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }
.main-footer { padding: 2rem 0; text-align: center; color: var(--text-muted); }

/* --- Forms & Buttons --- */
.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-sizing: border-box; /* Ensure padding doesn't add to total width */
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn-primary { background-color: var(--primary-color); color: #fff; border-color: var(--primary-color); }
.btn-primary:hover { background-color: var(--primary-hover); border-color: var(--primary-hover); }
.btn-danger { background-color: #dc3545; color: white; border-color: #dc3545; }
.btn-danger:hover { background-color: #c82333; border-color: #c82333; }
.btn-secondary { background-color: var(--secondary-color); color: white; border-color: var(--secondary-color); }
.btn-secondary:hover { background-color: #545b62; border-color: #545b62; }
.btn-success { background-color: var(--success-color); color: white; border-color: var(--success-color); }
.btn-success:hover { background-color: #218838; border-color: #218838; }

/* --- Authentication Pages (Login/Register) & General Wrapper for Management Pages --- */
.wrapper {
    /* Updated for student management page to allow vertical stacking of panels */
    display: block; /* Overrides display: flex from original .wrapper in auth pages */
    max-width: 1000px; /* Adjusted for student management page content */
    margin: 20px auto; /* Centers the content and provides top/bottom margin */
    padding: 0 1.5rem; /* Consistent padding */
}

.auth-box {
    background-color: var(--white-bg);
    padding: 2.5rem;
    border-radius: var(--card-border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
    text-align: center;
    border: 1px solid var(--medium-gray);
    /* For auth pages, maintain centering */
    margin: 0 auto; /* Ensures auth-box is centered if wrapper is block */
}

.auth-box h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.auth-subtext {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.input-container {
    margin-bottom: 1.5rem;
    text-align: left;
}

.input-container label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Error and success messages */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    text-align: left;
    font-size: 0.9rem;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    text-align: left;
    font-size: 0.9rem;
}
.info-message {
    background-color: #e7f3fe; /* Light blue */
    color: #004085; /* Dark blue */
    border: 1px solid #b3d7ff; /* Medium blue */
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    text-align: left;
    font-size: 0.9rem;
}


/* --- Lesson Library Page (Teacher) --- */
.lib-toolbar-wrapper { background-color: var(--white-bg); border-bottom: 1px solid var(--border-color); padding: 1rem 0; }
.filter-controls { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.filter-controls .form-control { padding: 0.5rem 1rem; font-size: 0.9rem; }
#lesson-list-container { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1rem; }

/* --- Bulk Actions Bar (Teacher) --- */
.bulk-actions-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: #e9ecef;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    flex-grow: 1;
    min-height: 85px;
}
.bulk-checkbox-label { display: flex; align-items: center; gap: 0.5rem; font-weight: 500; cursor: pointer; }
.bulk-buttons { display: flex; gap: 0.5rem; }

/* --- Lesson Tile (Teacher) --- */
.lesson-list-item-wrapper { display: flex; align-items: center; gap: 1rem; }
.tile-checkbox-container { flex-shrink: 0; width: 20px; text-align: center; }
.lesson-tile { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1rem; padding: 1rem; background-color: var(--white-bg); border: 1px solid var(--border-color); border-radius: var(--border-radius); flex-grow: 1; }
.lesson-tile-info { min-width: 0; }
.lesson-title { font-weight: 600; white-space: normal; word-break: break-word; }
.lesson-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem; }
.tag { font-size: 0.75rem; padding: 2px 8px; border-radius: 12px; background-color: #f0f3f5; }
.meta-stat { display: flex; align-items: center; gap: 0.35rem; }
.lesson-tile-actions { display: flex; gap: 0.5rem; }
/* Refined .btn-icon styles for better consistency and hover */
.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%; /* Make them circular for icons */
    transition: background-color 0.2s ease, color 0.2s ease;
    display: inline-flex; /* Use flex to center SVG */
    align-items: center;
    justify-content: center;
    width: 32px; /* Fixed size for icons */
    height: 32px;
}
.btn-icon:hover {
    background-color: rgba(0, 0, 0, 0.05); /* Subtle hover background */
}
.btn-icon svg {
    width: 20px; /* Standard icon size */
    height: 20px;
}
.btn-icon.success { color: var(--success-color); }
.btn-icon.success:hover { color: #218838; }
.btn-icon.primary { color: var(--primary-color); } /* New style for password reset icon */
.btn-icon.primary:hover { color: var(--primary-hover); }


/* --- Modals (General) --- */
.dashboard-modal, .modal-overlay { /* Combined selectors for consistency */
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.dashboard-modal.active, .modal-overlay.is-open { display: flex; } /* Activation classes */
.dashboard-modal-content, .modal-content { /* Combined selectors for consistency */
    background-color: var(--white-bg);
    border-radius: var(--border-radius);
    width: 100%;
    max-width: 500px; /* Default max-width for modals */
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--box-shadow);
}
.dashboard-modal-header { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-color); position: relative; }
.dashboard-modal-header h3 { margin: 0; font-size: 1.25rem; } /* Corrected typo: 1.25rm to 1.25rem */
.dashboard-modal-body { padding: 1.5rem; overflow-y: auto; }
.dashboard-modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 0.5rem; }
.close-modal-btn { background: none; border: none; font-size: 2rem; font-weight: 300; line-height: 1; color: #000; text-shadow: 0 1px 0 #fff; opacity: .5; cursor: pointer; position: absolute; top: 50%; right: 1.5rem; padding: 0; transform: translateY(-50%); }
.close-modal-btn:hover { opacity: .8; }

/* --- Teacher Modals (Specific overrides/additions) --- */
.dashboard-modal-content.large, .modal-content.large-modal { max-width: 700px; }
.table-container { width: 100%; max-height: 60vh; overflow-y: auto; }
.styled-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.styled-table th, .styled-table td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border-color); vertical-align: middle; }
.styled-table th { font-weight: 600; position: sticky; top: 0; /* Changed from -25px to 0 for better stickiness */ background-color: var(--white-bg); z-index: 1; }
.styled-table .talent-icon { font-size: 1.2rem; cursor: help; }
#student-list-body { display: flex; flex-direction: column; gap: 1rem; padding: 0 1.5rem 1rem; } /* This looks like a specific modal list structure */
.student-list-header { padding: 0.5rem; border-bottom: 1px solid var(--border-color); }
.student-list-header label, .student-info { cursor: pointer; display: flex; align-items: center; gap: 0.5rem; }
.student-list { max-height: 300px; overflow-y: auto; }
.student-list-item { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 0.5rem; border-bottom: 1px solid var(--light-gray); }
.student-list-item:last-child { border-bottom: none; }
.student-list-item:hover { background-color: var(--light-gray); }
.status-indicator { display: flex; align-items: center; position: relative; cursor: help; flex-shrink: 0; height: 24px; justify-content: flex-end; min-width: 24px; }
.status-icon-svg { width: 24px; height: 24px; flex-shrink: 0; }
#stat-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    width: 100%;
}
.stat-bar-left {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}
.stat-bar-right {
    text-align: right;
}

/* --- STYLES FOR STUDENT DASHBOARD --- */
.student-dashboard-wrapper { max-width: 1200px; margin: 1rem auto; padding: 0 1rem; font-family: 'Inter', sans-serif; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat-card { background-color: var(--white-bg); padding: 0.75rem; border-radius: var(--card-border-radius); box-shadow: var(--box-shadow); text-align: center; border: 1px solid var(--medium-gray); }
.stat-value { font-size: clamp(1.5rem, 4vw, 2rem); font-weight: 700; margin: 0; color: var(--primary-color); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0; }
#stat-avg-score { color: var(--success-color); }
#stat-percentage { color: var(--info-color); }

.filters-panel { display: none; flex-wrap: wrap; gap: 1rem; padding: 0.75rem; background-color: var(--white-bg); border: 1px solid var(--medium-gray); border-radius: var(--card-border-radius); margin-bottom: 1.5rem; }
.assignments-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1rem; }

.assignment-card { background-color: var(--white-bg); border-radius: var(--card-border-radius); box-shadow: var(--box-shadow); display: flex; flex-direction: column; transition: transform 0.2s ease, box-shadow 0.2s ease; border: 1px solid var(--medium-gray); overflow: hidden; }
.assignment-card:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.1); }

.card-body { padding: 1rem 1.25rem; position: relative; background-color: white; }
.card-title-row { display: flex; align-items: center; gap: 0.75rem; margin-top: 0.75rem; }
.card-title-details { flex-grow: 1; }
.author-message { font-size: 0.85rem; color: var(--text-color); margin-top: 0.25rem; }
.card-title { font-size: 1.1rem; font-weight: 700; margin: 0; line-height: 1.3; }
.card-subject { display: inline-block; padding: 0.4rem 0.8rem; border-radius: 16px; font-size: 0.8rem; font-weight: 600; margin-bottom: 0; }
.image-placeholder { width: 100%; height: 120px; background-color: var(--light-gray); border-radius: 8px; margin: 1rem 0; display: grid; place-items: center; color: var(--text-muted); }
.card-stats-list { list-style: none; padding: 0.75rem 1.25rem; margin: 0; font-size: 0.85rem; background-color: rgba(248, 249, 250, 0.5); border-top: 1px solid var(--border-color); }
.card-stats-list li { display: flex; justify-content: space-between; padding: 0.4rem 0; border-bottom: 1px solid var(--medium-gray); }
.card-stats-list li:last-child { border-bottom: none; }
.card-stats-list strong { color: var(--text-color); }
.card-footer { padding: 0.75rem 1.25rem; background-color: var(--white-bg); border-top: 1px solid var(--border-color); margin-top: auto; }
.progress-bar-container { margin-bottom: 0.5rem; }
.progress-bar { width: 100%; height: 6px; background-color: var(--medium-gray); border-radius: 3px; overflow: hidden; }
.progress-bar-fill { height: 100%; background-color: var(--success-color); border-radius: 3px; }
.score-details { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.25rem; }
.footer-actions { display: grid; grid-template-columns: auto 1fr auto; align-items: center; justify-items: center; }
.footer-actions .btn-icon:first-child { justify-self: start; }
.footer-actions .btn-icon:last-child { justify-self: end; }
.avatar-placeholder { width: 32px; height: 32px; border-radius: 50%; background-color: var(--medium-gray); flex-shrink: 0; }
#no-results-message { text-align: center; padding: 4rem 2rem; background-color: var(--white-bg); border: 1px solid var(--medium-gray); border-radius: var(--card-border-radius); width: 100%; grid-column: 1 / -1; }
#no-results-message p { font-size: 1.1rem; color: var(--text-muted); }

/* --- Mobile Filter Footer (Student) --- */
.mobile-filter-footer { display: flex; gap: 0.75rem; align-items: center; position: fixed; bottom: 0; left: 0; right: 0; background-color: var(--white-bg); padding: 0.75rem 1rem; box-shadow: 0 -2px 10px rgba(0,0,0,0.1); z-index: 1000; }
.mobile-search-wrapper { flex-grow: 1; position: relative; }
.mobile-search-wrapper .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); width: 16px; height: 16px; }
.mobile-search-wrapper .form-control { width: 100%; padding: 0.75rem 0.75rem 0.75rem 2.5rem; border-radius: 20px; border: 1px solid var(--medium-gray); }
.mobile-filter-btn { background: none; border: none; padding: 0.5rem; cursor: pointer; color: var(--text-muted); transition: transform 0.3s ease; display: grid; place-items: center; }
.mobile-filter-btn svg { width: 22px; height: 22px; }
.status-toggle-radial { display: flex; background-color: var(--medium-gray); border-radius: 20px; padding: 3px; }
.status-btn { padding: 0.4rem 1rem; border: none; background-color: transparent; color: var(--text-muted); font-weight: 500; font-size: 0.85rem; border-radius: 18px; cursor: pointer; transition: background-color 0.3s ease, color 0.3s ease; }
.status-btn.active.new { background-color: var(--warning-color); color: white; }
.status-btn.active.completed { background-color: var(--success-color); color: white; }

/* --- Student Dashboard Modals --- */
/* (These styles are copied from previous version, check for redundancy with general modal styles) */
/* .modal-overlay, .modal-content styles are now handled by common styles above. */
.btn-icon.hidden { display: none; }

/* --- Progress Modal Specific Styles --- */
#progress-summary-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 0 0.5rem;
}
.progress-summary-item {
    text-align: left;
}
.progress-summary-item.talent-summary {
    text-align: right;
}
.progress-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}
.progress-value.positive {
    color: var(--success-color);
}
.progress-value.negative {
    color: #dc3545;
}
.progress-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.talent-indicator {
    font-size: 2rem;
}
.progress-graph-container {
    width: 100%;
    position: relative;
    height: 300px;
    margin-bottom: 1rem;
}
#progress-dates-container {
    display: flex;
    justify-content: space-between;
    padding: 0 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --- Create Lesson Page Specific Styles --- */
.create-lesson-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
}

.create-lesson-container .panel {
    background-color: var(--white-bg);
    padding: 2rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2.5rem;
}

.create-lesson-container .panel:not(:last-child)::after {
    content: '';
    display: block;
    height: 1px;
    background-color: var(--border-color);
    margin: 2rem 0;
}

.create-lesson-container h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.75rem;
}

.create-lesson-container .auth-subtext {
    text-align: center;
    margin-bottom: 2.5rem;
    line-height: 1.5;
}

.button-container {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.button-container .btn {
    flex: 1 1 auto;
    min-width: 120px;
    padding: 0.75rem 1rem;
}

/* Already defined globally, but keeping here for context if specific overrides needed */
/* .input-container { margin-bottom: 1.5rem; text-align: left; } */
/* .input-container label { margin-bottom: 0.75rem; font-size: 1.1rem; font-weight: 600; color: var(--text-color); } */
/* .input-container .form-control { width: 100%; max-width: 100%; font-size: 1rem; line-height: 1.5; } */

.input-container textarea.form-control {
    resize: vertical;
    min-height: 100px;
    max-height: 300px;
}

#prompt-output-container {
    margin-top: 2rem;
}

.searchable-dropdown {
    position: relative;
}

.searchable-dropdown-options {
    display: none;
    position: absolute;
    background-color: white;
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    width: 100%;
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
}

.searchable-dropdown-options.visible {
    display: block;
}

.searchable-dropdown-options div {
    padding: 0.75rem 1rem;
    cursor: pointer;
}

.searchable-dropdown-options div:hover {
    background-color: var(--light-gray);
}

#teacher-subject-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

#teacher-subject-buttons .btn {
    padding: 0.5rem 1rem;
}

@media (max-width: 600px) {
    .create-lesson-container {
        padding: 0.75rem;
        margin: 1rem auto;
    }

    .create-lesson-container .panel {
        padding: 1.5rem;
    }

    .create-lesson-container h2 {
        font-size: 1.5rem;
    }

    .create-lesson-container .input-container {
        margin-bottom: 1.25rem;
    }

    .create-lesson-container .button-container {
        flex-direction: column;
        gap: 0.75rem;
    }

    .button-container .btn {
        width: 100%;
        min-width: 0;
    }
}

@media (min-width: 992px) {
    .filters-panel { display: flex; }
    .mobile-filter-footer { display: none; }
    body { padding-bottom: 0; }
}

/* Pulsating animation for the 'To Do' tile */
@keyframes pulsate-color {
  0%, 100% { color: var(--primary-color); transform: scale(1); }
  50% { color: #dc3545; transform: scale(1.05); }
}
#stat-new.pulsating { animation: pulsate-color 2.5s infinite ease-in-out; }

/* Style for inline assignment details in share modal */
.assignment-details-inline { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; margin-left: 0.5rem; }

/* Color-coded subject tags */
.subject-color-1 { background-color: rgba(255, 152, 0, 0.15); color: #b36d00; }
.subject-color-2 { background-color: rgba(0, 123, 255, 0.1); color: #0056b3; }
.subject-color-3 { background-color: rgba(40, 167, 69, 0.1); color: #155724; }
.subject-color-4 { background-color: rgba(108, 117, 125, 0.1); color: #383d41; }
.subject-color-5 { background-color: rgba(220, 53, 69, 0.1); color: #721c24; }
.subject-color-6 { background-color: rgba(23, 162, 184, 0.1); color: #0c5460; }
.subject-color-default { background-color: rgba(232, 232, 232, 0.5); color: #545454; }

/* New styles for expandable student creation section */
.expand-toggle {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--primary-color);
    cursor: pointer;
    padding: 10px 0;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 2px solid var(--primary-color);
    display: block; /* Make it a block element to take full width */
    transition: all 0.3s ease;
}
.expand-toggle:hover {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
}

.expand-content {
    display: none; /* Hidden by default */
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.5s ease-out; /* Smooth transition for height and opacity */
}

.expand-content.expanded {
    display: block; /* Change to block when expanded */
    opacity: 1;
    max-height: 1000px; /* Adjust as needed for content height, needs to be larger than actual content */
    transition: all 0.5s ease-in;
}
/* Style for the toggle icon (arrow) */
#toggle-icon {
    display: inline-block;
    margin-left: 10px;
    transition: transform 0.3s ease;
}
.expand-content.expanded + .expand-toggle #toggle-icon { /* Adjust icon when expanded */
    transform: rotate(180deg);
}