body {
    margin: 0;
    font-family: Arial, sans-serif;
    font-size: 16px;
    color: #1f2937;
    background-color: #f3f4f6;
}

header {
    background-color: #ffffff;
    padding: 20px;
    border-bottom: 1px solid #d1d5db;
}

header p {
    margin: 0;
    font-size: 20px;
    font-weight: bold;
}

main {
    max-width: 500px;   /* mohem ll responsive design alshan ynasb kol screens*/
    margin: 60px auto;      /*b7dd beh msa7t el main f el page */
    padding: 20px;
}
/* alshan nzhr el failds tht b3d f el page*/    
form {  
    background-color: #ffffff; 
    padding: 25px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input {
    display: block;
    width: 100%;
    box-sizing: border-box;  /* mhma alshan ntkm f 7gm el input */
    padding: 12px;
    margin-bottom: 20px;
}

/* ll sign in button alshann ykon mmyz w wad7 */
button {
    background-color: #1e3a5f;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;  /*by8yr mo2shr el mouse lmma y8yr mkano*/
}

/* alshan ykoon wad7 ll user hwa wa2f ala putton mn 8er el mouse*/
input:focus-visible,
button:focus-visible {
    outline: 3px solid #e28b20;
    outline-offset: 3px;
}

/*dashboard navigation*/
nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 15px 20px;
    background-color: #ffffff;
    border-bottom: 1px solid #d1d5db;
}

nav a {
    color: #1e3a5f;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 6px;
    font-weight: bold;
}

nav a:hover,
nav a[aria-current="page"] {
    background-color: #dbeafe;
    text-decoration: underline;
}
/*keyboard focus lono wad7*/
nav a:focus-visible {
    outline: 3px solid  #8a4300; 
    outline-offset: 3px;
}


/*Marks entry form*/
#marksForm {
    max-width: 100%;
}

#marksForm select,
#marksForm textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;   /*alshan ymn3 el padding mn elzyada*/
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #6b7280;
    border-radius: 6px;
    font: inherit;
    background-color: #ffffff;
    color: #1f2937;
}

#marksForm input[type="checkbox"] {
    display: inline-block;
    width: auto;
    margin: 0 8px 0 0;
    accent-color: #1e3a5f;
}

#marksForm select:focus-visible,
#marksForm textarea:focus-visible {
    outline: 3px solid #8a4300;
    outline-offset: 3px;
}

#marksForm input:focus-visible,
#marksForm button:focus-visible {
    outline-color: #8a4300;
}

#marksForm textarea {
    resize: vertical;
}


/* t3del ll screens elso8yra*/
@media (max-width: 600px) {
    main {
        margin: 20px auto;
        padding: 15px;
    }

    form {
        padding: 20px;
    }

    button {
        width: 100%;
    }
}



/* Franco: el styles di bt7afz 3ala nafs shakl el pages w bet2lel repetitions */
body { line-height: 1.5; }
header .header-line { max-width: 1100px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
header .logout-form { padding: 0; margin: 0; border: 0; background: transparent; }
header .logout-form button { padding: 8px 12px; }
main.wide-main { max-width: 1100px; }
main.form-main { max-width: 750px; }
footer { padding: 18px; text-align: center; color: #334155; }
footer p { margin: 0; }
nav { max-width: none; }
/* el skip link btfdal mawgooda lel keyboard w betban lma na3mel Tab */
.skip-link { display: inline-block; clip-path: inset(50%); pointer-events: none; padding: 8px; }
.skip-link:focus { clip-path: none; pointer-events: auto; }
a { color: #1e3a5f; }
a:hover { text-decoration: underline; }
a:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #8a4300; outline-offset: 3px; }
input, select, textarea { border: 1px solid #6b7280; border-radius: 6px; color: #1f2937; background: white; font: inherit; }
select, textarea { display: block; width: 100%; box-sizing: border-box; padding: 12px; margin-bottom: 20px; }
input:focus-visible, button:focus-visible { outline-color: #8a4300; }
fieldset { border: 1px solid #b5c3d0; border-radius: 6px; margin: 0 0 18px; padding: 16px; min-width: 0; }
legend { font-weight: bold; }
label.choice-label { font-weight: normal; display: flex; align-items: center; gap: 8px; }
label.choice-label input { width: auto; margin: 0; }
.panel { background: white; border: 1px solid #d1d5db; padding: 20px; margin: 20px 0; border-radius: 8px; }
/* cards el dashboard btet2asem 3ala el screen bel grid */
.stat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.stat-card { background: white; border: 1px solid #bac5d2; border-radius: 8px; padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.stat-card strong { font-size: 30px; }
.filter-form { border: 0; padding: 0; }
.filter-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
/* el table momken tet7arek bel 3ard mn 8er ma el page kolha tet7arek */
.table-scroll { overflow-x: auto; max-width: 100%; }
table { border-collapse: collapse; width: 100%; background: white; }
caption { text-align: left; padding: 8px; }
th, td { border-bottom: 1px solid #bac5d2; padding: 12px; text-align: left; vertical-align: top; }
th { background: #e7f1fc; }
.actions { min-width: 125px; }
.delete-form { border: none; padding: 0; background: transparent; margin-top: 8px; }
.delete-button { background: #86252a; padding: 8px 12px; }
.pagination { margin-top: 14px; }
.secondary-link, .skip-link, .pagination a, main a[href^="/marksForm.html"] {
    display: inline-block;
    padding: 6px 10px;
    border: 1px solid #1e3a5f;
    border-radius: 6px;
    font-weight: bold;
    text-decoration: none;
}
.secondary-link:hover, .skip-link:hover, .pagination a:hover, main a[href^="/marksForm.html"]:hover {
    background: #e7f1fc;
    text-decoration: none;
}
/* el errors leha shakl wad7 w text mesh lon bas */
.error-message { border-left: 4px solid #a51d24; background: #fff2f2; padding: 12px; font-weight: bold; }
.success-message { border-left: 4px solid #167146; background: #edf8f2; padding: 12px; font-weight: bold; }
.small-note { color: #334155; }
.sign-in-layout .small-note { color: #1e3a5f; }
/* law esm el student taweel byenزل sater gedid badal el scroll */
.recent-records { overflow-wrap: anywhere; }
[hidden] { display: none !important; }
/* lma el screen tes8ar el cards w filters yetratabo b shakl ashal */
@media (max-width: 700px) {
    .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .filter-grid { grid-template-columns: 1fr; }
    main.wide-main, main.form-main { margin: 20px auto; padding: 15px; }
}
@media (max-width: 370px) { .stat-grid { grid-template-columns: 1fr; } }


/* Franco: new accessibility fixes; shared focus is visible on all links. */
#mainContent:focus, #actionMessage:focus, #resultsSummary:focus,
#formError:focus { outline: 3px solid #8a4300; outline-offset: 3px; }
.field-error { color: #86252a; font-weight: bold; margin: -12px 0 18px; }
.field-error::before { content: "Error: "; }
.error-message { color: #86252a; }
.error-message ul { margin: 6px 0 0; padding: 0; list-style: none; }
.error-message li + li { margin-top: 6px; }
.error-message a {
    display: inline-block;
    padding: 6px 10px;
    color: #86252a;
    background: white;
    border: 1px solid currentColor;
    border-radius: 6px;
    text-decoration: none;
}
.error-message a:hover { background: #fbe3e3; }
[aria-invalid="true"] { border: 3px solid #86252a; }
.mobile-records { display: none; }
/* Franco: student marks keep a desktop table, but become cards on phones. */
@media (max-width: 600px) {
    .table-scroll { display: none; }
    .mobile-records { display: grid; gap: 16px; list-style: none; padding: 0; }
    .mobile-record { border: 1px solid #b5c3d0; border-radius: 8px; padding: 14px;
                     background: #fff; min-width: 0; overflow-wrap: anywhere; }
    .mobile-record h3 { font-size: 18px; margin: 0 0 12px; }
    .student-code { font-size: 14px; font-weight: normal; }
    .mobile-record dl { margin: 0; }
    .mobile-record dl > div { display: flex; justify-content: space-between;
                              gap: 12px; padding: 7px 0; border-bottom: 1px solid #d1d5db; }
    .mobile-record dt { font-weight: bold; }
    .mobile-record dd { text-align: right; margin: 0; }
    .mobile-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 14px; }
    .mobile-actions .delete-form { margin: 0; width: auto; }
    .mobile-actions .delete-button { width: auto; }
}