/* --- الإعدادات الأساسية --- */
html {
    font-size: 16px;
    height: 100%;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Cairo', sans-serif;
}

body {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.85) 0%, rgba(22, 33, 62, 0.9) 20%, rgba(15, 52, 96, 0.85) 50%),
        url('https://images.unsplash.com/photo-1611974789855-9c2a0a7236a3?w=1920&q=80') center/cover no-repeat fixed;
    height: 100vh;
    /* استخدام height بدلاً من min-height لمنع السكرول */
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
    /* يمنع ظهور شريط التمرير */
    direction: rtl;
    line-height: 1.6;
    font-size: 0.875rem;
}

.login-container {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 24px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 440px;
    /* تقليل العرض قليلاً ليتناسب مع كافة الشاشات */
    padding: 40px 35px;
    /* موازنة الحواف الداخلية */
    position: relative;
    z-index: 10;
    max-height: 95vh;
    /* ضمان عدم خروج الحاوية عن الشاشة */
    overflow-y: auto;
    /* يسمح بالسكرول داخل الكارت فقط إذا كانت الشاشة صغيرة جداً */
}

/* --- شعار النظام --- */
.logo-section {
    text-align: center;
    margin-bottom: 25px;
}

.logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, hsl(28, 95%, 40%) 0%, hsl(28, 95%, 55%) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    box-shadow: 0 15px 40px rgba(198, 105, 0, 0.35);
}

.logo i {
    font-size: 2rem;
    color: white;
}

.logo-section h1 {
    color: #1f2937;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.logo-section p {
    color: #6b7280;
    font-size: 0.85rem;
    font-weight: 500;
}

/* --- الحقول والنصوص --- */
.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #1f2937;
    font-weight: 600;
    font-size: 0.85rem;
}

.form-group label .required {
    color: #dc3545;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: hsl(28, 95%, 40%);
    font-size: 1rem;
}

.form-control {
    width: 100%;
    padding: 14px 45px 14px 15px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 0.9rem;
    background: #f9fafb;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: hsl(28, 95%, 40%);
    background: white;
    box-shadow: 0 0 0 4px rgba(198, 105, 0, 0.12);
}

/* --- نظام التنبيهات المطور (الدمج والإصلاح) --- */
.error-message {
    position: relative;
    background: #fff5f5;
    border-right: 5px solid #ff4d4d;
    color: #c53030;
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: none;
    /* يتم إظهاره عبر JS */
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 10px 20px rgba(220, 38, 38, 0.1);
    animation: slideDownFade 0.4s ease forwards, shake 0.4s ease-in-out;
}

.error-message.show {
    display: flex;
}

.error-message i {
    font-size: 1.1rem;
    color: #ff4d4d;
}

/* تأثير الحقل المخطئ */
.form-control.is-invalid {
    border-color: #ff4d4d !important;
    background-color: #fffafa !important;
    box-shadow: 0 0 8px rgba(255, 77, 77, 0.2) !important;
    animation: shake 0.4s ease-in-out;
}

/* زر تسجيل الدخول */
.btn-login {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, hsl(28, 95%, 40%) 0%, hsl(28, 95%, 35%) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(198, 105, 0, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(198, 105, 0, 0.45);
}

.btn-login:active {
    transform: translateY(0);
}

/* الروابط السفلية */
.footer-links {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.footer-links a {
    color: hsl(28, 95%, 40%);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
}

.footer-links a:hover {
    text-decoration: underline;
}

.copyright {
    text-align: center;
    margin-top: 15px;
    color: #6b7280;
    font-size: 0.75rem;
}

/* --- التحميل (Loading Overlay) --- */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    gap: 20px;
}

.loading-overlay.show {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid hsl(28, 95%, 40%);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* --- Animations --- */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    50% {
        transform: translateX(5px);
    }

    75% {
        transform: translateX(-5px);
    }
}

@keyframes slideDownFade {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-out {
    animation: fadeOut 0.4s ease forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }

    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* استجابة الشاشات الصغيرة جداً */
@media (max-height: 600px) {
    body {
        align-items: flex-start;
        overflow-y: auto;
        padding: 10px;
    }

    .login-container {
        margin-top: 10px;
        padding: 25px 20px;
    }
}