:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eeebff;
    --bg-main: #f3f4f6;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
}

/* زر تبديل اللغة */
.login-lang-select {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 10;
}

html[dir="ltr"] .login-lang-select {
    right: auto;
    left: 24px;
}

.lang-switch-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

    .lang-switch-btn:hover {
        border-color: var(--primary);
        background-color: var(--primary-light);
        color: var(--primary);
    }

/* حاوية صندوق الدخول */
.login-container {
    background-color: var(--bg-card);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

    .login-header .logo {
        font-size: 28px;
        font-weight: 700;
        color: var(--primary);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }

    .login-header h2 {
        font-size: 22px;
        color: var(--text-main);
        font-weight: 600;
        margin-bottom: 4px;
    }

    .login-header p {
        color: var(--text-muted);
        font-size: 14px;
    }

/* الحقول */
.form-group {
    margin-bottom: 20px;
    text-align: start;
}

    .form-group label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        margin-bottom: 8px;
        color: var(--text-main);
    }

    .form-group input {
        width: 100%;
        padding: 12px 16px;
        border: 1px solid var(--border);
        border-radius: 8px;
        outline: none;
        font-size: 14px;
        background-color: #f9fafb;
        transition: var(--transition);
    }

        .form-group input:focus {
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
        }

/* الخيارات */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-muted);
}

    .remember-me input {
        cursor: pointer;
        width: 16px;
        height: 16px;
        accent-color: var(--primary);
    }

.forgot-password {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

    .forgot-password:hover {
        color: var(--primary-hover);
        text-decoration: underline;
    }

.btn-login {
    width: 100%;
    padding: 12px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

    .btn-login:hover {
        background-color: var(--primary-hover);
    }

    .btn-login:active {
        transform: scale(0.98);
    }

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.developer-credit {
    margin-top: 8px;
    font-size: 12px;
    border-top: 1px dashed var(--border);
    padding-top: 10px;
}

/* التنبيهات */
.toast {
    position: fixed;
    bottom: 24px;
    background-color: #0f172a;
    color: white;
    padding: 14px 24px;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    z-index: 300;
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
}

html[dir="rtl"] .toast {
    left: 24px;
    right: auto;
}

html[dir="ltr"] .toast {
    right: 24px;
    left: auto;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.validation-summary-errors {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 14px;
}

    .validation-summary-errors ul {
        margin: 0;
        padding-right: 18px;
    }

.text-danger {
    color: #dc2626;
    font-size: 13px;
    margin-top: 6px;
    display: block;
}