/* =======================================
    ClassMate Settings - New Light Layout
    ======================================= */

/* --------- 1. Variables & Global Styles --------- */
:root {
    /* New Light Theme Palette */
    --primary: #007BFF; /* A classic, vibrant blue */
    --primary-dark: #0056b3;
    --secondary: #6c757d;
    --secondary-dark: #5a6268;
    --danger: #DC3545;
    --danger-dark: #c82333;
    --success: #28a745;
    --text-primary: #212529; /* Dark text for readability */
    --text-secondary: #6c757d; /* Lighter grey for secondary text */
    --body-bg: #F8F9FA; /* Off-white background */
    --card-bg: #FFFFFF; /* White cards */
    --border-color: #DEE2E6; /* Light grey borders */

    --radius: 10px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --font: "Cairo", sans-serif;
    --transition: 0.3s ease;
}

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

body {
    font-family: var(--font);
    background: var(--body-bg);
    color: var(--text-primary);
    line-height: 1.7;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --------- 2. Header & Navigation --------- */
.page-header {
    background: var(--card-bg);
    padding: 30px 0; /* Increased padding for the larger logo */
    border-bottom: 1px solid var(--border-color);
}
.classmate-brand {
    display: flex;
    align-items: center;
    gap: 25px; /* Increased gap for the larger logo */
}
.classmate-logo {
    width: 150px; /* Changed as requested */
    height: 150px; /* Changed as requested */
    object-fit: contain;
    border-radius: var(--radius);
    background-color: #f8f9fa;
    border: 1px solid var(--border-color);
}
.classmate-brand h1 {
    font-size: 2rem; /* Made title slightly larger */
    color: var(--text-primary);
    margin: 0;
}

.settings-nav {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}
.settings-nav .container {
    display: flex;
    gap: 10px;
}
.nav-tab {
    padding: 15px 25px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}
.nav-tab:hover {
    color: var(--text-primary);
    background: #f1f1f1; /* Light grey hover for light theme */
}
.nav-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* --------- 3. Main Content & Cards --------- */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    background-color: #fcfcfc;
}
.card-header h2 { 
    font-size: 1.1rem;
    margin: 0;
}

.card-body {
    padding: 30px 25px;
}

/* Danger Zone */
.danger-zone {
    border-color: var(--danger);
}
.danger-zone .card-header h2 {
    color: var(--danger);
}
.danger-zone .card-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

/* --------- 4. Forms & Buttons --------- */
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font);
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f1f3f5; /* Light grey background for inputs */
    color: var(--text-primary);
}
.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
    background-color: #fff;
}
/* تم التعديل: إضافة تنسيق لـ readonly */
.form-group input[readonly] {
    background-color: #e9ecef; /* Different grey for readonly */
    cursor: not-allowed;
    color: var(--text-secondary);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}
.form-actions {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: left;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-family: var(--font);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}
.btn:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}
.btn-primary { background-color: var(--primary); color: white; }
.btn-primary:hover { background-color: var(--primary-dark); }
.btn-danger { background-color: var(--danger); color: white; }
.btn-danger:hover { background-color: var(--danger-dark); }
.btn-secondary { background-color: var(--secondary); color: white; }
.btn-secondary:hover { background-color: var(--secondary-dark); }

/* --------- 5. Panels & Responsive Design --------- */
.settings-panel { display: none; }
.settings-panel.active { display: block; animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

@media (max-width: 768px) {
    .classmate-brand {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .classmate-logo {
        width: 100px;
        height: 100px;
    }
    .classmate-brand h1 {
        font-size: 1.5rem;
    }
    .form-grid { grid-template-columns: 1fr; }
    .danger-zone .card-body { flex-direction: column; align-items: flex-start; }
    .danger-zone .btn { width: 100%; margin-top: 15px; }
    .settings-nav .container { gap: 0; }
    .nav-tab { flex-grow: 1; justify-content: center; padding: 15px 10px; }
    .nav-tab span { display: none; }
}

/* --------- 6. Message Box (from login.css) --------- */
#message-box {
    position: fixed;
    top: -150px; /* Start hidden off-screen */
    left: 50%;
    transform: translateX(-50%);
    padding: 16px 24px;
    border-radius: 8px;
    background-color: #333; /* Default dark */
    color: white;
    z-index: 1000;
    transition: top 0.5s ease-in-out;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    font-weight: 500;
}
#message-box.show {
    top: 20px; /* Slide in */
}
#message-box.success {
    background-color: var(--success); /* Green */
}
#message-box.error {
    background-color: var(--danger); /* Red */
}

/* --------- 7. Delete Confirmation Modal --------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 1;
    transition: opacity 0.3s ease;
}
.modal-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    animation: fadeIn 0.3s ease;
}
.modal-content h2 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--danger);
}
.modal-content p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}
.modal-content .form-group {
    margin-bottom: 20px;
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 20px;
}