:root {
    /* درجات ألوان جامعة تبوك الرسمية المحدثة */
    --ut-dark-green: #14573a;
    --ut-light-green: #1b8354;
    --ut-hover-green: #166a45;
    --ut-green-rgb: 27, 131, 84;
    --ut-soft-green: #f0fdf4;
    --nafath-color: #14b8a6;
    --nafath-rgb: 20, 184, 166;
    --nafath-soft: #f0fdfa;
    --danger: #ef4444;
    --danger-rgb: 239, 68, 68;
    --warning: #f59e0b;
    --warning-rgb: 245, 158, 11;
    --timer-ok: #28a745;
    --timer-warn: #fd7e14;
    --timer-danger: #dc3545;
    --text-main: #1e293b;
    --text-strong: #0f172a;
    --text-label: #334155;
    --text-muted: #64748b;
    --text-faint: #94a3b8;
    --neutral-bg: #f8fafc;
    --border-color: #e2e8f0;
    --border-faint: #f1f5f9;
    /* توحيد الانحناءات الحديثة */
    --radius-md: .25rem;
    --radius-lg: 16px;
    --focus-ring: 0 0 0 4px rgba(var(--ut-green-rgb), .25);
}

body, html {
    height: 100%;
    margin: 0;
    font-family: 'Almarai', sans-serif;
    background-color: #ffffff;
    color: var(--text-main);
}

/* الاتجاه يُحدد من خاصية dir في عنصر html، والتنسيقات تستخدم الخصائص المنطقية (inline-start / end) */

.main-wrapper {
    display: flex;
    min-height: 100vh;
}

.form-section, .image-section {
    flex: 0 0 50%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.form-section {
    padding: 40px 60px;
    position: relative;
    justify-content: space-between;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.university-logo {
    height: 90px;
    object-fit: contain;
}

.nafath-logo {
    height: 45px;
    object-fit: contain;
}

.login-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 420px;
    margin: 0 auto;
    width: 100%;
}

/* رسالة الترحيب للجوال */
.welcome-mobile {
    display: none;
    background: var(--ut-soft-green);
    padding: 16px;
    border: 1px solid var(--border-color);
    border-inline-start: 4px solid var(--ut-light-green);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.form-label {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 8px;
    color: var(--text-label);
    text-align: start;
    display: block;
}

.input-wrapper {
    position: relative;
}

.form-control {
    height: 54px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding-block: 10px;
    padding-inline: 45px 15px; /* مساحة للأيقونة في بداية الحقل */
    font-size: 1rem;
    background-color: var(--neutral-bg);
    text-align: start;
    color: var(--text-strong);
    transition: all 0.2s ease;
}

    .form-control:focus {
        background-color: #ffffff;
        border-color: var(--ut-light-green);
        box-shadow: 0 0 0 4px rgba(var(--ut-green-rgb), 0.11);
        outline: none;
    }

    .form-control.is-invalid {
        border-color: var(--danger);
        background-image: none;
    }

        .form-control.is-invalid:focus {
            box-shadow: 0 0 0 4px rgba(var(--danger-rgb), 0.15);
        }

.input-icon {
    position: absolute;
    inset-inline-start: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-faint);
    font-size: 1.25rem;
    z-index: 5;
    pointer-events: none;
}

.field-error {
    font-size: 0.8rem;
}

.btn-submit {
    background-color: var(--ut-light-green);
    color: white;
    height: 54px;
    border-radius: var(--radius-md);
    font-weight: 700;
    border: none;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(var(--ut-green-rgb), 0.15);
    margin-top: 24px;
    text-decoration: none;
}

    .btn-submit:hover {
        background-color: var(--ut-hover-green);
        transform: translateY(-1px);
        box-shadow: 0 6px 16px rgba(var(--ut-green-rgb), 0.2);
        color: white;
    }

    .btn-submit:active {
        transform: translateY(1px);
    }

    /* حالة الإرسال: منع الضغط المزدوج */
    .btn-submit.is-loading {
        pointer-events: none;
        opacity: .75;
    }

/* إطار تركيز واضح عند التنقل بلوحة المفاتيح */
.btn-submit:focus-visible,
.btn-cancel:focus-visible,
.nafath-download-btn:focus-visible,
.copyright a:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.download-section {
    text-align: center;
    margin-top: 30px;
}

.vision-logo {
    width: 110px;
    opacity: 0.6;
    margin-top: 10px;
}

.image-section {
    background-image: url('../img/bg_ar.png');
    /* محاذاة الصورة لجهة النموذج حتى لا يُقص النص المكتوب داخلها على الشاشات المتوسطة */
    background-position: right center;
    background-size: cover;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    padding: 40px;
}

[dir="ltr"] .image-section {
    background-image: url('../img/bg_en.png');
    background-position: left center;
}

.copyright {
    font-size: 0.75rem;
    color: var(--text-muted);
    width: 100%;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-faint);
    padding-bottom: 10px;
}

    .copyright div {
        margin-bottom: 8px;
    }

    .copyright a {
        text-decoration: none;
        color: var(--text-muted);
        margin: 0 8px;
        border-radius: var(--radius-md);
        transition: color 0.2s;
    }

        .copyright a:hover {
            color: var(--ut-light-green);
        }

.service-badge {
    background-color: var(--ut-soft-green);
    border: 1px solid rgba(var(--ut-green-rgb), 0.15);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ut-dark-green);
    font-weight: 700;
    font-size: 0.95rem;
}

/* تنسيقات صندوق الرمز المحدثة */
.verification-box {
    border: 1px solid rgba(var(--nafath-rgb), 0.3);
    background-color: var(--nafath-soft);
    border-radius: var(--radius-lg);
    width: 120px;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 24px auto;
    box-shadow: 0 10px 25px rgba(var(--nafath-rgb), 0.08);
}

.verification-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--ut-light-green);
    letter-spacing: -1px;
}

#countdownWrapper {
    display: none;
    position: relative;
    width: 140px;
    height: 140px;
    margin: 24px auto;
}

.timer-svg {
    transform: rotate(-90deg);
    width: 140px;
    height: 140px;
}

.timer-bg {
    fill: none;
    stroke: var(--border-faint);
    stroke-width: 6;
}

.timer-progress {
    fill: none;
    stroke: var(--timer-ok);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1s linear, stroke 0.3s ease;
}

    .timer-progress.is-warning {
        stroke: var(--timer-warn);
    }

    .timer-progress.is-danger {
        stroke: var(--timer-danger);
    }

.timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    white-space: nowrap;
}

.btn-cancel {
    background-color: transparent;
    color: var(--danger);
    border: 1.5px solid var(--danger);
    height: 50px;
    border-radius: var(--radius-md);
    font-weight: 700;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

    .btn-cancel:hover {
        background-color: var(--danger);
        color: white;
        box-shadow: 0 4px 12px rgba(var(--danger-rgb), 0.2);
    }

/* صندوق تحميل تطبيق نفاذ المحسن */
.nafath-download-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    margin-bottom: 24px;
    background-color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.nafath-info {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: start;
}

.nafath-app-icon {
    width: 30px;
}

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

.nafath-title {
    font-weight: 700;
    color: var(--text-strong);
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.nafath-subtitle {
    color: var(--text-muted);
    font-size: .75rem;
}

.nafath-download-btn {
    border: 1.5px solid var(--ut-light-green);
    color: var(--ut-light-green);
    background: transparent;
    padding: .5rem 1.25rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.8rem;
    transition: all 0.2s ease;
    white-space: nowrap;
}

    .nafath-download-btn:hover {
        background-color: var(--ut-light-green);
        color: white;
    }

.nafath-toast-container {
    z-index: 1200;
    max-width: 400px;
}

/* ===== صفحة الخطأ ===== */
.status-card {
    text-align: center;
}

.status-icon {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
    font-size: 2.5rem;
    background-color: rgba(var(--danger-rgb), .1);
    color: var(--danger);
    box-shadow: 0 0 0 10px rgba(var(--danger-rgb), .05);
}

    .status-icon.is-warning {
        background-color: rgba(var(--warning-rgb), .12);
        color: var(--warning);
        box-shadow: 0 0 0 10px rgba(var(--warning-rgb), .06);
    }

.status-title {
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 12px;
}

.status-message {
    color: var(--text-muted);
    font-size: .95rem;
    line-height: 1.8;
    margin-bottom: 8px;
}

.status-code {
    display: inline-block;
    font-size: .75rem;
    color: var(--text-faint);
    background: var(--neutral-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2px 10px;
    margin-bottom: 8px;
}

.status-hint {
    font-size: .8rem;
    color: var(--text-faint);
    margin-top: 16px;
}

/* استعلامات الشاشة الاستجابة (Responsive) */
@media (max-width: 991px) {
    body {
        background-image: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)), url('../img/bg_ar.png');
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
    }

    [dir="ltr"] body {
        background-image: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.85)), url('../img/bg_en.png');
    }

    .image-section {
        display: none;
    }

    .form-section {
        flex: 0 0 100%;
        padding: 30px 24px;
    }

    .welcome-mobile {
        display: block;
    }
}

@media (max-width: 400px) {
    /* طبقة شفافة أقوى لضمان وضوح النص على الشاشات الصغيرة */
    body {
        background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), url('../img/bg_ar.png');
    }

    [dir="ltr"] body {
        background-image: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), url('../img/bg_en.png');
    }

    .form-section {
        padding: 24px 16px;
    }

    .university-logo {
        height: 70px;
    }

    .nafath-download-card {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .nafath-download-btn {
        width: 100%;
        text-align: center;
    }
}